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WO2019194670A1 - Système de traitement de gaz et navire le comprenant - Google Patents

Système de traitement de gaz et navire le comprenant Download PDF

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Publication number
WO2019194670A1
WO2019194670A1 PCT/KR2019/004166 KR2019004166W WO2019194670A1 WO 2019194670 A1 WO2019194670 A1 WO 2019194670A1 KR 2019004166 W KR2019004166 W KR 2019004166W WO 2019194670 A1 WO2019194670 A1 WO 2019194670A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
bunkering
boil
storage tank
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2019/004166
Other languages
English (en)
Korean (ko)
Other versions
WO2019194670A8 (fr
Inventor
유병용
박재훈
이훈희
박석준
이신구
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HD Hyundai Heavy Industries Co Ltd
Original Assignee
Hyundai Heavy Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyundai Heavy Industries Co Ltd filed Critical Hyundai Heavy Industries Co Ltd
Priority to SG11202009864UA priority Critical patent/SG11202009864UA/en
Priority to JP2021503688A priority patent/JP7548898B2/ja
Priority to CN201980022626.3A priority patent/CN111918817A/zh
Publication of WO2019194670A1 publication Critical patent/WO2019194670A1/fr
Anticipated expiration legal-status Critical
Publication of WO2019194670A8 publication Critical patent/WO2019194670A8/fr
Priority to JP2022173486A priority patent/JP7677935B2/ja
Priority to JP2024099994A priority patent/JP2024117812A/ja
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/30—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures
    • B63B27/34—Arrangement of ship-based loading or unloading equipment for transfer at sea between ships or between ships and off-shore structures using pipe-lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C6/00—Methods and apparatus for filling vessels not under pressure with liquefied or solidified gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F17C9/04—Recovery of thermal energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F25J1/0025—Boil-off gases "BOG" from storages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
    • F25J1/0045—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by vaporising a liquid return stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/007—Primary atmospheric gases, mixtures thereof
    • F25J1/0072—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0201—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration
    • F25J1/0202—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0203—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle
    • F25J1/0204—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process using a single-component refrigerant [SCR] fluid in a closed vapor compression cycle as a single flow SCR cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0228—Coupling of the liquefaction unit to other units or processes, so-called integrated processes
    • F25J1/0229—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock
    • F25J1/023—Integration with a unit for using hydrocarbons, e.g. consuming hydrocarbons as feed stock for the combustion as fuels, i.e. integration with the fuel gas system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0262—Details of the cold heat exchange system
    • F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0262—Details of the cold heat exchange system
    • F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
    • F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0277—Offshore use, e.g. during shipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/24—Arrangement of ship-based loading or unloading equipment for cargo or passengers of pipe-lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F17C2205/0367—Arrangements in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F17C2223/04—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by other properties of handled fluid before transfer
    • F17C2223/042—Localisation of the removal point
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F17C2223/042—Localisation of the removal point
    • F17C2223/046—Localisation of the removal point in the liquid
    • F17C2223/047—Localisation of the removal point in the liquid with a dip tube
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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    • F17C2225/0146—Two-phase
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    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/033—Small pressure, e.g. for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/035—High pressure, i.e. between 10 and 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/03—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the pressure level
    • F17C2225/036—Very high pressure, i.e. above 80 bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/04—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by other properties of handled fluid after transfer
    • F17C2225/042—Localisation of the filling point
    • F17C2225/043—Localisation of the filling point in the gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0157—Compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0306—Heat exchange with the fluid by heating using the same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0323—Heat exchange with the fluid by heating using another fluid in a closed loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0327—Heat exchange with the fluid by heating with recovery of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0339—Heat exchange with the fluid by cooling using the same fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F17C2227/0355—Heat exchange with the fluid by cooling using another fluid in a closed loop
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0365—Heat exchange with the fluid by cooling with recovery of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/046—Enhancing energy recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/031—Treating the boil-off by discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/033—Treating the boil-off by recovery with cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/032—Treating the boil-off by recovery
    • F17C2265/037—Treating the boil-off by recovery with pressurising
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/065—Fluid distribution for refuelling vehicle fuel tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/066—Fluid distribution for feeding engines for propulsion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/34—Details about subcooling of liquids

Definitions

  • the present invention relates to a gas treatment system and a vessel comprising the same.
  • a ship is a means of transporting the ocean carrying large quantities of minerals, crude oil, natural gas, or thousands of containers. It is made of steel and is buoyant and floats on the water surface by buoyancy. Go through.
  • Such a ship generates thrust by driving an engine or a gas turbine, and the engine uses oil fuel such as gasoline or diesel to move the piston so that the crank shaft is rotated by the reciprocating motion of the piston, and the shaft connected to the crank shaft. Is rotated to drive the propellers, while gas turbines burn fuel with compressed air and generate power by rotating the turbine blades through the temperature / pressure of the combustion air to transfer power to the propellers.
  • oil fuel such as gasoline or diesel
  • gas turbines burn fuel with compressed air and generate power by rotating the turbine blades through the temperature / pressure of the combustion air to transfer power to the propellers.
  • an LNG fuel supply method that uses LNG as a fuel to drive demands such as an engine or a turbine is used in an LNG carrier carrying Liquefied Natural Gas, which is a kind of liquefied gas, and LNG is a clean fuel.
  • LNG is a kind of liquefied gas
  • LNG is a clean fuel.
  • the reserves are richer than petroleum, the use of LNG as fuel for demand is being applied to other vessels other than LNG carriers.
  • LNG has a characteristic of being kept at a cryogenic state in order to maintain a liquid phase during loading / unloading. Therefore, there is a need for research and development on the technology for stably bunkering LNG for vessels other than LNG carriers using the LNG propulsion method.
  • the present invention was created to solve the problems of the prior art as described above, an object of the present invention, by implementing a stable and rapid delivery of liquefied gas in the process of bunkering the liquefied gas to the gas propulsion vessel, it is possible to increase the bunkering efficiency have.
  • a gas processing system is a gas processing system for transferring liquefied gas from a storage tank of a bunkering vessel to a C type fuel tank provided in a gas propulsion vessel, and converting the liquefied gas of the storage tank into the fuel tank.
  • a bunkering manager configured to adjust the internal pressure of the storage tank by liquefying and returning the evaporated gas of the storage tank to a refrigerant; And an evaporation gas return line for transferring the evaporated gas generated in the fuel tank to the bunkering vessel during bunkering through the bunkering line, wherein the bunkering manager lowers the internal pressure of the storage tank to a predetermined pressure or less before the bunkering, Maintaining the internal pressure of the storage tank below the internal pressure of the fuel tank during bunkering, it is characterized in that the boil-off gas is delivered through the boil-off gas return line without compression by a separate compressor.
  • the storage tank is a tank of the membrane type or C type
  • the predetermined pressure may be 0.04barG or 0.2barG.
  • the bunkering management unit may include a reliquefaction apparatus for liquefying boil-off gas, and the boil-off gas return line may deliver the boil-off gas to the re-liquefaction apparatus.
  • the bunkering management unit may reliquefy the vaporized gas delivered through the boil-off gas return line to return to the storage tank during bunkering, and maintain the internal pressure of the storage tank below the internal pressure of the fuel tank.
  • the bunkering management unit when the bunkering management unit bunkers the fuel tank whose internal pressure before bunkering is the first pressure and the internal pressure decreases due to inflow of liquefied gas during bunkering, the bunkering management unit measures the internal pressure of the storage tank before bunkering and when bunkering. It can be below the internal pressure at the completion of bunkering.
  • the bunkering may be configured to calculate the internal pressure of the storage tank before the bunkering and the bunkering. Can be below the internal pressure at the start of bunkering.
  • the first pressure may be a pressure greater than 0.05 barG to 0.1 barG greater than the preset pressure
  • the second pressure may be a pressure less than 0.05 barG to 0.1 barG greater than the preset pressure
  • the first pressure is 0.5barG to 8barG
  • the second pressure may be 0.5barG or less.
  • a gas processing system is a gas processing system for transferring liquefied gas from a storage tank of a bunkering vessel to a fuel tank provided in a gas propulsion vessel, and a bunker ring for supplying liquefied gas of the storage tank to the fuel tank.
  • a bunkering manager configured to adjust the internal pressure of the storage tank by returning the evaporated gas of the storage tank by compressing, cooling, and reducing the pressure without heat exchange with a refrigerant; And an evaporation gas return line for transferring the evaporated gas generated in the fuel tank to the bunkering vessel during bunkering through the bunkering line, wherein the bunkering manager lowers the internal pressure of the storage tank to a predetermined pressure or less before the bunkering, When bunkering, the fuel tank is compressed by blocking the transfer of the boil-off gas through the boil-off gas return line, or the boil-off gas is separated through the boil-off gas return line by maintaining the internal pressure of the storage tank below the pressure of the fuel tank. Characterized in that to be delivered without compression by the compressor.
  • the storage tank is a tank of the membrane type or C type
  • the predetermined pressure may be 0.04barG or 0.2barG.
  • the bunkering management unit includes an evaporative gas heat exchanger for exchanging the compressed evaporated gas with the evaporated gas discharged from the storage tank, and the evaporated gas return line is an evaporated gas between the storage tank and the evaporative gas heat exchanger. Can be passed.
  • the boil-off gas return line may be provided to transfer the boil-off gas between the storage tank and the boil-off gas heat exchanger via or bypass the boil-off gas heat exchanger.
  • the bunkering management unit a plurality of low pressure compressor is provided in parallel to compress the evaporation gas of the storage tank to supply to the power generation engine;
  • a multistage boosting compressor provided at a branched position between the low pressure compressor and the power generation engine and compressing the excess evaporated gas to 150 barG or more;
  • a pressure reducing valve configured to liquefy by reducing the evaporated gas compressed by the boosting compressor, wherein the evaporating gas heat exchanger cools the high pressure evaporated gas between the boosting compressor and the pressure reducing valve with the evaporated gas discharged from the storage tank. can do.
  • the bunkering management unit may suck the evaporated gas of the storage tank by operating the plurality of low pressure compressors in parallel to reduce the internal pressure of the storage tank to a predetermined pressure or less before the bunkering.
  • the bunkering management unit a low pressure compressor for compressing the boil-off gas of the storage tank to supply to the power generation engine;
  • a multistage high pressure compressor provided in parallel with the low pressure compressor and compressing the evaporated gas of the storage tank to 150 barG or more;
  • a pressure reducing valve for liquefying the liquefied evaporated gas by the high pressure compressor, wherein the evaporating gas heat exchanger cools the high pressure evaporated gas between the high pressure compressor and the pressure reducing valve with the evaporated gas discharged from the storage tank.
  • the high pressure compressor may supply an intermediate stage boil-off gas to the power generation engine.
  • the bunkering management unit may independently operate the low pressure compressor and the high pressure compressor according to the amount of liquefied gas stored in the storage tank.
  • a gas processing system is a gas processing system for transferring liquefied gas from a storage tank of a bunkering vessel to a fuel tank provided in a gas propulsion vessel, and a bunker ring for supplying liquefied gas of the storage tank to the fuel tank.
  • a bunkering management unit which controls the internal pressure of the storage tank by subcooling the liquefied gas of the storage tank with a refrigerant; And an evaporation gas return line for transferring the evaporated gas generated in the fuel tank to the bunkering vessel during bunkering through the bunkering line, wherein the bunkering manager lowers the internal pressure of the storage tank to a predetermined pressure or less before the bunkering,
  • the fuel tank is compressed by blocking the transfer of the boil-off gas through the boil-off gas return line, or the boil-off gas is separated through the boil-off gas return line by maintaining the internal pressure of the storage tank below the pressure of the fuel tank. Characterized in that to be delivered without compression by the compressor.
  • the storage tank is a tank of the membrane type or C type
  • the predetermined pressure may be 0.04barG or 0.2barG.
  • the bunkering management unit the subcooling device for subcooling the liquefied gas with a refrigerant; And a refrigerant supply unit supplying a refrigerant to the subcooling device, wherein the refrigerant supply unit may include a refrigerant heat exchanger cooling the refrigerant with liquefied gas or evaporated gas supplied from the storage tank to a power generation engine.
  • the refrigerant supply unit a refrigerant compressor; A heat exchanger between the compressed refrigerant and the refrigerant heated in the subcooler; A refrigerant expander configured to expand a refrigerant passing through the refrigerant exchanger after compression; And the refrigerant heat exchanger for cooling the compressed refrigerant with liquefied gas or evaporated gas supplied to the power generation engine.
  • the refrigerant supply unit a refrigerant compressor;
  • the refrigerant heat exchanger for heat-exchanging a compressed refrigerant, a refrigerant heated in the subcooling apparatus, and a liquefied gas or an evaporated gas supplied to the power generation engine;
  • a refrigerant expander configured to expand the refrigerant passing through the refrigerant heat exchanger after compression.
  • a gas treatment system according to an aspect of the present invention is characterized by having the gas treatment system as a bunkering vessel.
  • the gas treatment system according to the present invention and the ship including the same in consideration of the generation of the liquefied gas from the liquefied gas when transferring the liquefied gas from the bunkering vessel to the gas propulsion vessel, by creating a technology for shortening the bunkering time and efficiency Safe and stable bunkering can be guaranteed.
  • FIG. 1 is a process flow diagram of a gas treatment system according to the first and second embodiments of the present invention.
  • FIG. 2 is a conceptual diagram of a gas treatment system according to a first embodiment of the present invention.
  • FIG 3 is a graph of the breakdown pressure change in the gas treatment system according to the first embodiment of the present invention.
  • FIG. 4 is a conceptual diagram of a gas treatment system according to a second embodiment of the present invention.
  • FIG. 5 is a graph of the breakdown pressure change in the gas treatment system according to the second embodiment of the present invention.
  • FIG. 6 is a process flow diagram of a gas treatment system according to a third embodiment of the present invention.
  • FIG. 7 is a process flow diagram of a gas treatment system according to a fourth embodiment of the present invention.
  • FIG. 8 is a process flow diagram of a gas treatment system according to a fifth embodiment of the present invention.
  • FIG. 9 is a process flow diagram of a gas treatment system according to a sixth embodiment of the present invention.
  • FIG. 10 is a process flow diagram of a gas treatment system according to a seventh embodiment of the present invention.
  • FIG. 11 is a process flowchart of the gas treatment system according to the eighth embodiment of the present invention.
  • FIG. 12 is a process flowchart of the gas treatment system according to the ninth embodiment of the present invention.
  • FIG. 13 is a process flow diagram of a gas treatment system according to a tenth embodiment of the present invention.
  • the liquefied gas may be LNG, but is not limited thereto, and may include all materials having a boiling point lower than room temperature and forcibly liquefied for storage and having a calorific value.
  • the liquefied gas / evaporation gas in the present specification is divided on the basis of the state inside the tank, it is noted that due to the name is not necessarily limited to the liquid or gas phase.
  • the high pressure / low pressure is relative herein, and is not limited to numerical values.
  • FIG. 1 is a process flow diagram of a gas treatment system according to the first and second embodiments of the present invention
  • FIG. 2 is a conceptual diagram of a gas treatment system according to the first embodiment of the present invention
  • FIG. 3 is a first diagram of the present invention.
  • the gas treatment system according to the first embodiment of the present invention is liquefied into a fuel tank 210a provided in a gas propulsion vessel GFS from a storage tank 110 of a bunkering vessel BV.
  • Bunkering system for delivering gas for delivering gas.
  • the present invention may include a bunkering vessel (BV) having a gas treatment system described below.
  • the present invention also includes a gas propulsion vessel (GFS) whose configuration is specified for the implementation of a gas treatment system.
  • GFS gas propulsion vessel
  • the present invention is a gas propulsion vessel (GFS) to which the following gas treatment system is applied, and a compressor (especially an H / D compressor) for returning the boil-off gas generated during bunkering to the bunkering vessel BV is not provided. It may include a gas propulsion vessel (GFS).
  • the gas propulsion ship may be a ship, such as a bulk carrier, a container carrier, or a mineral carrier, as a commercial vessel other than a liquefied gas carrier, and may include liquefied gas or evaporated gas stored in the fuel tank 210a in the fuel processor 220 ( A pump, compressor, heat exchanger, etc.) may be provided with a facility for supplying to the propulsion engine 230 through the gas supply line (L6) through compression / pressure / heating and the like.
  • L6 gas supply line
  • the gas treatment system may include a configuration for supplying liquefied gas from the storage tank 110 to the fuel tank 210a.
  • the storage tank 110 is a membrane type or C type tank, the bunkering line connecting the storage tank 110 and the fuel tank 210a by the liquefied gas by the transfer pump 111 provided in the storage tank 110. It may be delivered to the fuel tank 210a along the (L1).
  • the gas treatment system includes a configuration for returning the boil-off gas generated in the fuel tank 210a to the bunkering vessel BV when the liquefied gas is supplied to the fuel tank 210a.
  • the fuel tank 210a may be a C type having a design pressure of about 5 barG to 10 barG in the present embodiment, and may be installed at various positions such as a deck top or inboard of the gas propulsion vessel GFS.
  • the boil-off gas generated in the fuel tank 210a is returned to the bunkering vessel BV through the boil-off gas return line L2 and may be directly or indirectly transferred to the storage tank 110.
  • the gas treatment system includes a bunkering management unit 120.
  • the bunkering management unit 120 regulates the internal pressure of the storage tank 110.
  • the bunkering management unit 120 liquefies the evaporated gas of the storage tank 110 with a refrigerant (no nitrogen, mixed refrigerant, etc.) and returns it to the storage tank 110 for storage.
  • the internal pressure of the tank 110 may be lowered.
  • the present invention provides a bunkering management unit 120 to be described in detail below, in the bunkering fuel tank (210a) during bunkering to supply the liquefied gas of the storage tank 110 to the fuel tank (210a) through the bunkering line (L1) Evaporation gas generation and the return of the boil-off gas generated in the fuel tank 210a to the bunkering vessel (BV) and the like can be improved compared to the conventional.
  • the bunkering management unit 120 may lower the internal pressure of the storage tank 110 to less than or equal to the preset pressure before bunkering. For example, before the liquefied gas is delivered through the bunkering line L1, the bunkering management unit 120 may lower the internal pressure of the storage tank 110 to a preset pressure such as 0.04 barG or 0.2 barG. Of course, if the internal pressure of the storage tank 110 has already met the preset pressure or less, the liquefaction return of the boil-off gas may be omitted.
  • the internal pressure of the storage tank 110 of the bunkering vessel BV is lowered in advance, so that the liquefied gas delivered from the storage tank 110 to the fuel tank 210a is sufficiently stable (for example, By making the subcooled state, the amount of generated boil-off gas can be reduced when the liquefied gas is supplied to the fuel tank 210a.
  • the bunkering management unit 120 maintains the internal pressure of the storage tank 110 to less than the internal pressure of the fuel tank 210a.
  • the boil-off gas generated in the fuel tank 210a is not required to be compressed by a separate compressor in the process of being transferred to the bunkering vessel BV through the boil-off gas return line L2. That is, the present invention allows the boil-off gas NBOG returned from the gas propulsion vessel GFS to the bunkering vessel BV during the bunkering process.
  • the present invention by continuously treating the evaporated gas of the storage tank 110 in the bunkering process to maintain the internal pressure of the storage tank 110 lower than the fuel tank 210a, the storage tank 110 in the fuel tank 210a By allowing the boil-off gas to be delivered without compression, the high-duty compressor provided in the gas propulsion vessel GFS for the return of the boil-off gas during bunkering can be omitted.
  • each of the storage tank 110 and the fuel tank 210a is provided with a pressure gauge (not shown) for measuring internal pressure.
  • the bunkering management unit 120 for implementing such an effect uses a reliquefaction apparatus 122 for liquefying boil-off gas, and a plurality of boil-off gas compressors 121 back up each other in parallel upstream of the reliquefaction apparatus 122.
  • the pressure control valve 123 and the gas-liquid separator 124 are provided downstream of the reliquefaction apparatus 122.
  • the boil-off gas compressor 121, the reliquefaction apparatus 122, the pressure regulating valve 123, and the gas-liquid separator 124 are sequentially on the pressure regulating line L3 which forms a circulation passage based on the storage tank 110.
  • the bunkering management unit 120 may reduce the internal pressure of the storage tank 110 by returning to the storage tank 110 by compressing and liquefying the evaporated gas of the storage tank 110.
  • the boil-off gas delivered to the bunkering vessel BV through the boil-off gas return line L2 is transferred to the re-liquefaction apparatus 122 and stored after re-liquefaction.
  • the tank 110 may be returned to the tank 110 or may be bypassed to the reliquefaction apparatus 122 to be transferred to the storage tank 110.
  • the boil-off gas delivered from the gas propulsion vessel GFS may be used to operate the power generation engine 130 for power consumption in the bunkering vessel BV.
  • the bunkering management unit 120 evaporates.
  • the reliquefaction apparatus 122 may be utilized so that the boil-off gas delivered through the gas return line L2 does not directly flow into the storage tank 110 to cause an increase in the internal pressure of the storage tank 110.
  • the bunkering management unit 120 may liquefy the vaporized gas returned during bunkering to return to the storage tank 110 to maintain the internal pressure of the storage tank 110 below the internal pressure of the fuel tank 210a.
  • the boil-off gas return line L2 may be provided to be joined to the inlet end of the boil-off gas compressor 121 upstream of the re-liquefaction device 122 or directly connected to the re-liquefaction device 122, the fuel tank 210a.
  • the boil-off gas can be delivered directly from the boil-off gas return line (L2) to the reliquefaction apparatus 122.
  • the load of the transfer pump 111 becomes larger, so that the bunkering management unit 120 evaporates from the line where the internal pressure of the storage tank 110 is less than or equal to the internal pressure of the fuel tank 210a. Gas may be supplied to the storage tank 110 without reliquefaction, thereby increasing the internal pressure of the storage tank 110.
  • the bunkering vessel (BV) requires relatively large power to operate the reliquefaction apparatus 122, the boil-off gas compressor 121, the transfer pump 111, etc. in the anchoring state for bunkering. 130) must be activated.
  • the power generation engine 130 may receive and consume the boil-off gas through the boil-off gas consumption line L4 branched from the downstream of the boil-off gas compressor 121 in the pressure regulating line L3.
  • the discharge pressure of 121 may correspond to the required pressure of the power generation engine 130.
  • the power generation engine 130 may receive and consume the liquefied gas that has passed through the fuel supply pump 112 and the vaporizer 113 through the liquefied gas consumption line L5 in the storage tank 110, but the power generation engine 130 may be consumed.
  • the evaporation gas consumption line L4 may be additionally connected to the gas combustion device 140 (or a boiler, etc.) in order to consume the evaporated gas of the storage tank 110 in a situation in which it is not operated.
  • the boil-off gas returned through the boil-off gas return line (L2) may also be used as fuel such as the power generation engine (130), in which case the boil-off gas return line (L2) may be connected upstream of the boil-off gas compressor (121). It is not.
  • the solid line indicates the change in the internal pressure during bunkering of the fuel tank 210a having different initial internal pressures
  • the inclined dotted line indicates the amount of liquefied gas bunkered
  • the horizontal dotted line indicates the internal pressure of the storage tank 110.
  • the gas treatment system may lower the internal pressure of the storage tank 110 of the bunkering vessel BV using the reliquefaction apparatus 122 to a predetermined pressure or less.
  • the preset pressure is about 0.2 barG in Fig. 3A and about 0.04 barG in Fig. 3B.
  • the bunkering line L1 is connected between the storage tank 110 and the fuel tank 210a to start bunkering.
  • the fuel tank 210a may be cooled down to receive the cryogenic liquefied gas, but in the fuel tank 210a due to factors such as heat penetrating into the fuel tank 210a during bunkering. Boil off gas is generated in large quantities.
  • the boil-off gas should be returned to the bunkering vessel (BV).
  • BV bunkering vessel
  • the internal pressure of the storage tank 110 is changed to the fuel tank 210a during the time of bunkering. It can be made to be below the internal pressure of, so that the returned boil-off gas is delivered without compression.
  • the internal pressure before bunkering may be, for example, 0.2 / 3.0 / 6.5 barG, and as shown in FIG. 3A, the initial pressure of the fuel tank 210a may be 3.0 barG or 6.5 barG.
  • the gas propulsion vessel GFS in which the bunkering is completed is in a state in which propulsion can be performed immediately without treatment for the boil-off gas of the fuel tank 210a. This is because the storage tank 110 performs bunkering after lowering the internal pressure before bunkering.
  • the initial internal pressure of the fuel tank 210a may be 0.2 barG, which is the same as the preset pressure of the storage tank 110, in which case the fuel tank 210a has the same internal pressure as the storage tank ( As the boil-off gas is generated while receiving the liquefied gas of 110, the internal pressure may increase slightly during the bunkering process.
  • the bunkering management unit 120 has a pressure difference between the storage tank 110 and the fuel tank 210a so that the boil-off gas can still be returned to the bunkering vessel BV from the gas propulsion vessel GFS without compression. Can be maintained.
  • the internal pressure of the fuel tank 210a is 3.0 / 6.5.
  • the bunkering management unit 120 measures the internal pressure of the storage tank 110 before bunkering and at the time of bunkering of the fuel tank 210a (about 0.5 bar). )
  • the bunkering management unit 120 may set the internal pressure of the storage tank 110 before the bunkering and at the time of bunkering to be less than the internal pressure (0.2 barG) at the start of bunkering of the fuel tank 210a.
  • the first pressure may be 0.5barG to 8barG at a pressure greater than 0.05barG to 0.1barG greater than the preset pressure
  • the second pressure may be 0.5barG or less at a pressure less than 0.05barG to 0.1barG greater than the preset pressure.
  • the numerical value is not limited to this.
  • the present embodiment by lowering the internal pressure of the storage tank 110 before the bunkering, it is possible to reduce the evaporated gas generated in the fuel tank 210a during the bunkering, and further, the internal pressure of the storage tank 110 is reduced.
  • the H / D compressor of the gas propulsion vessel GFS may be omitted by maintaining the fuel tank 210a below the internal pressure so that the boil-off gas of the fuel tank 210a is returned to the bunkering vessel BV without compression.
  • FIG. 4 is a conceptual diagram of a gas treatment system according to a second embodiment of the present invention
  • FIG. 5 is a graph of a breakdown pressure change in the gas treatment system according to the second embodiment of the present invention.
  • the second embodiment of the present invention has a difference in that the fuel tank 210b is provided in a membrane type compared to the previous embodiment.
  • the present embodiment will be described based on the point that the present embodiment is different from the previous embodiment, and a part omitted from the description will be replaced with the above contents. This is also true in other embodiments described later.
  • the gas propulsion vessel GFS of the present embodiment may be a container carrier or the like, and a fuel tank 210b may be mounted on board a ship, and the fuel tank 210b may be a membrane type.
  • the tank B may be a type B (eg, a self-contained square type SPB) having a design pressure that is the same as or similar to that of the membrane type.
  • the solid line represents the change in the internal pressure during bunkering of the fuel tank 210b having different initial internal pressures
  • the inclined dotted line represents the amount of liquefied gas bunkered
  • the horizontal dotted line represents the storage tank 110. It means internal pressure.
  • the gas treatment system lowers the internal pressure of the storage tank 110 below the preset pressure before the bunkering, wherein the preset pressure is about 0.2 barG in FIG. 5A and about 0.04 barG in FIG. 5B.
  • bunkering starts.
  • the internal pressure of the storage tank 110 is maintained in the fuel tank 210b for the entire time during the bunkering.
  • the boil-off gas is returned from the fuel tank 210b to the bunkering vessel BV without compression by the HD compressor.
  • the internal pressure of the fuel tank 210b may be 0.63 / 0.2 / 0.05 barG before bunkering, and the internal pressure of the fuel tank 210b in FIG. 5A where the internal pressure before bunkering of the storage tank 110 is 0.2 barG.
  • the fuel tank ( The internal pressure of 210b) gradually decreases.
  • the internal pressure before bunkering is the first pressure (0.5 barG to 1 barG at a pressure greater than 0.05 barG to 0.1 barG relative to the preset pressure), and when bunkering, the bunkering is carried out in the fuel tank 210b in which the internal pressure falls due to the inflow of liquefied gas.
  • the bunkering management unit 120 may set the internal pressure of the storage tank 110 before or after bunkering to an internal pressure (about 0.5 bar or less) at the time of bunkering of the fuel tank 210b.
  • the bunkering management unit 120 may set the internal pressure of the storage tank 110 before the bunkering and at the time of bunkering to be less than the internal pressure (0.2 barG) at the start of bunkering of the fuel tank 210b.
  • the internal pressure before bunkering of the fuel tank 210b may be less than 0.05 barG in FIG. 5A where the internal pressure before bunkering of the storage tank 110 is 0.2 barG, and in this case, the internal pressure before bunkering As a case where the pressure of the storage tank 110 lowered below this preset pressure is a pressure larger than the internal pressure of the fuel tank 210b before bunkering, a process different from that in the first embodiment is performed.
  • the fuel tank 210b is accumulated by blocking the transfer of the boil-off gas through the boil-off gas return line L2 from the start of the bunkering to a certain point.
  • the fuel tank 210b may be controlled to exceed the internal pressure of the storage tank 110 while the internal pressure rises due to the pressure accumulation for a predetermined time from the start of the bunkering.
  • the bunkering management unit 120 blocks the return of the boil-off gas from the start of the bunkering to a certain point, and re-liquefies the return of the boil-off gas from the point of time to the completion of the bunkering to the storage tank 110 to store the storage tank 110.
  • Internal pressure may be maintained below the internal pressure of the fuel tank 210b.
  • the present embodiment is to implement bunkering for the fuel tank 210b of the membrane type, and in case the internal pressure of the storage tank 110 is higher than the internal pressure of the fuel tank 210b when the bunkering starts, Partial accumulating control of 210b may be implemented to avoid the need for a compressor to be used to return the boil-off gas.
  • FIG. 6 is a process flow diagram of a gas treatment system according to a third embodiment of the present invention.
  • the gas treatment system replaces (or in addition to) the bunkering management unit 120 having a reliquefaction apparatus 122 for liquefying and returning evaporated gas to a refrigerant.
  • the bunkering management unit 120 may adjust the internal pressure of the storage tank 110 by compressing, cooling, and reducing the evaporation gas of the storage tank 110 without heat exchange with the refrigerant.
  • the bunkering management unit 120 lowers the internal pressure of the storage tank 110 to less than the preset pressure (about 0.04 / 0.2 barG or less) before bunkering and cuts off the return of the evaporated gas during bunkering to the fuel tank. It is noted that the control of maintaining the internal pressure of the storage tank 110 ⁇ the internal pressure of the fuel tanks 210a and 210b so that the 210a and 210b are accumulated or delivered without compressing during the bunkering is the same as in the previous embodiments.
  • the bunkering management unit 120 includes a low pressure compressor 121a, a boosting compressor 121b, a boil-off gas heat exchanger 125, a pressure reducing valve 123, and a gas-liquid separator 124, and the pressure control line L3 is stored.
  • a circulation passage may be formed based on the tank 110, and the above components may be connected in series.
  • a plurality of low pressure compressors 121a are provided in parallel to compress the evaporated gas of the storage tank 110 and supply the compressed gas to the power generation engine 130.
  • the evaporative gas consumption line L4 is branched downstream of the low pressure compressor 121a to be connected to the power generation engine 130, and the low pressure compressor 121a has a discharge pressure suitable for the required pressure of the power generation engine 130. can do.
  • the boosting compressor 121b is provided in multiple stages and is provided at a position branched between the low pressure compressor 121a and the power generation engine 130 (downstream of the low pressure compressor 121a on the basis of the pressure regulating line L3) and is provided with a surplus. Compress the boil-off gas to 150 barG or more.
  • This embodiment utilizes the Joule-Thompson effect to liquefy the boil-off gas by compressing it after decompression without heat exchange.
  • the pressure before the boil-off gas should be 150 barG or more. Therefore, the present embodiment further provides a boosting compressor 121b for liquefying the boil-off gas using the reduced pressure while placing the low-pressure compressor 121a for supplying the boil-off gas to the power generation engine 130.
  • the boil-off gas heat exchanger 125 may heat the boil-off gas compressed by the boosting compressor 121b with the boil-off gas discharged from the storage tank 110 to cool the compressed high-pressure boil-off gas.
  • the inlet temperature of the low pressure compressor 121a is increased to increase the temperature at which the low pressure compressor 121a must withstand. have.
  • the boil-off gas heat exchanger 125 exchanges a stream of boil-off gas delivered from the storage tank 110 to the low pressure compressor 121a and a stream of high-pressure boil-off gas delivered from the boosting compressor 121b to the pressure reducing valve 123. And having at least two streams for heat exchange.
  • the boil-off gas return line L2 is provided to transfer the boil-off gas between the storage tank 110 and the boil-off gas heat exchanger 125, the stream delivered from the storage tank 110 to the low pressure compressor 121a is stored.
  • the boil-off gas of the fuel tanks 210a and 210b may be mixed with the boil-off gas of the tank 110.
  • the boil-off gas heat exchanger 125 may pass through the boil-off gas return line L2 so as to heat-exchange the boil-off gas of the fuel tanks 210a and 210b delivered through the boil-off gas return line L2. It may be further provided. That is, the boil-off gas return line L2 may be joined to the pressure regulating line L3 between the storage tank 110 and the low pressure compressor 121a after passing through the boil-off gas heat exchanger 125.
  • the boil-off gas return line (L2) may be provided to bypass the boil-off gas heat exchanger 125, the boil-off gas return line (L2) via the boil-off gas heat exchanger (125) or bypass the storage tank (110) And the boil-off gas between the boil-off gas heat exchanger 125.
  • the boil-off gas return line (L2) to bypass the boil-off gas heat exchanger 125 is a case where it is not necessary to utilize the cold heat of the boil-off gas recovered from the gas propulsion vessel (GFS), it is not supplied to the power generation engine (130) It may be the case that there is little or no surplus evaporated gas remaining.
  • the pressure reducing valve 123 decompresses and liquefies the boil-off gas compressed by the boosting compressor 121b and cooled in the boil-off gas heat exchanger 125.
  • the pressure reducing valve 123 may liquefy at least a portion of the boil-off gas by compressing the cooled boil-off gas to 1 to 10 barG after being compressed to 150 barG or more.
  • the gas-liquid separator 124 separates the liquefied evaporated gas into gas-liquid and returns the liquid phase (LBOG) to the storage tank 110, and the flash gas is transferred from the storage tank 110 to the boil-off gas heat exchanger 125. It can be mixed with the boil-off gas.
  • the gaseous phase separated from the gas-liquid separator 124 exchanges heat while flowing through a separate stream in the evaporating gas heat exchanger 125 without joining the evaporating gas, and then joins the evaporating gas upstream of the low pressure compressor 121a. It may be to be consumed by the power generation engine 130, a boiler or the like.
  • the bunkering management unit 120 of this embodiment constitutes an evaporative gas compressor 121 including a plurality of low pressure compressors 121a + boosting compressors 121b arranged in parallel, so that the internal pressure of the storage tank 110 is reduced before bunkering.
  • the plurality of low pressure compressors 121a may be operated in parallel to sufficiently suck the evaporated gas from the storage tank 110, thereby rapidly reducing the internal pressure drop of the storage tank 110.
  • the present embodiment by lowering the internal pressure of the storage tank 110 quickly and sufficiently before bunkering, it is possible to increase the bunkering efficiency by reducing the amount of evaporated gas generated in the storage tank 110 during bunkering.
  • FIG. 7 is a process flow diagram of a gas treatment system according to a fourth embodiment of the present invention.
  • the boil-off gas compressor 121 of the bunkering management unit 120 may be configured differently from the above-described third embodiment.
  • the bunkering management unit 120 of the present embodiment is provided with a low pressure compressor 121a for supplying boil-off gas to the power generation engine 130 and a high pressure compressor 121c for liquefying boil-off gas through the Joule-Thomson effect.
  • the low pressure compressor 121a and the high pressure compressor 121c can be provided in parallel.
  • the high pressure compressor 121c is connected to the boil-off gas consumption line L4 at the middle stage and supplies the boil-off gas compressed at the middle stage to the power generation engine 130 so that the low pressure compressor 121a is provided in multiple stages. Can be backed up by part of 121c).
  • the bunkering management unit 120 of the present embodiment uses a high pressure compressor 121c and pressurizes the boil-off gas to 150 barG or more, and then cools it by using the boil-off gas discharged from the storage tank 110 in the boil-off gas heat exchanger 125.
  • the gas may be returned to the storage tank 110 through the pressure reducing valve 123 and the gas-liquid separator 124.
  • the bunkering management unit 120 may independently operate the low pressure compressor 121a and the high pressure compressor 121c independently according to the amount of liquefied gas stored in the storage tank 110.
  • the high-pressure compressor 121c is used to supply a portion of the intermediate stage boil-off gas to the power generation engine 130 while supplying a portion of the final stage. Evaporated gas may be re-liquefied and returned to the storage tank 110.
  • the low pressure compressor 121a may be used to produce the evaporated gas. It may be consumed by the power generation engine 130 or the like and not returned to the storage tank 110.
  • the high pressure compressor 121c for implementing the boil-off gas liquefaction using the reduced pressure is provided in parallel with the low-pressure compressor 121a for supplying the boil-off gas to the power generation engine 130, Accordingly, the high pressure compressor 121c and the low pressure compressor 121a may be alternatively operated to increase the operating efficiency of the boil-off gas compressor 121.
  • Example Liquefied gas with refrigerant Subcooling Return Bunkering Ship( BV To lower the tank internal pressure Bunkering It is based on the idea of reducing the generation of municipal boil-off gas.
  • FIG. 8 is a process flow diagram of a gas treatment system according to a fifth embodiment of the present invention.
  • the gaseous liquefied gas may be partially reliquefied.
  • the internal pressure of the storage tank 110 may be adjusted by supercooling and returning the refrigerant.
  • the bunkering management unit 120 includes a subcooling device 126 and a refrigerant supply unit 127.
  • the subcooling apparatus 126 may supercool the liquefied gas with a refrigerant, and the temperature of the liquefied gas to be subcooled may be a temperature lower than the boiling point (-163 degrees Celsius) of the liquefied gas at atmospheric pressure (for example, around -170 degrees Celsius). .
  • the coolant supply unit 127 supplies a coolant, which is not limited to nitrogen or a mixed refrigerant, to the subcooler 126 to realize subcooling of the liquefied gas.
  • Refrigerant supply unit 127 is provided with a refrigerant compressor (1271), refrigerant cooler (1272), refrigerant expander (1273), refrigerant heat exchanger (1274), between the refrigerant exchanger (1275), the refrigerant circulation line (L7)
  • the flow paths through which the refrigerant circulates are formed while connecting the components in sequence.
  • the refrigerant compressor 1271 compresses the refrigerant.
  • the pressure of the compressed refrigerant may be about 10 barG, but is not limited thereto, and various values of pressure may be used to increase the supercooling efficiency.
  • the refrigerant cooler 1272 may cool the heated refrigerant while being compressed by the refrigerant compressor 1271 with various cold energy.
  • the refrigerant cooler 1272 may be provided downstream of the refrigerant compressor 1271, and may be provided at each stage of the refrigerant compressor 1271 when the refrigerant compressor 1271 is provided in multiple stages.
  • the refrigerant expander 1273 expands the compressed refrigerant.
  • the refrigerant decompressed by expansion after compression can sufficiently reduce the temperature of the refrigerant similarly to the preceding pressure reducing valve 123, and the expanded refrigerant is transferred to the subcooling device 126 and used to supercool the liquefied gas.
  • the refrigerant heat exchanger (1274) cools the refrigerant compressed by the refrigerant compressor (1271) with the evaporated gas supplied from the storage tank (110) to the power generation engine (130). At this time, the refrigerant heat exchanger (1274) may be provided between the refrigerant compressor (1271) and the subcooler (126) as shown in the drawing, on the other hand, the refrigerant heat exchanger (1274) and the refrigerant compressor (1271) and the subcooler (126). It can be installed at any point between the), and may replace the refrigerant cooler (1272).
  • the refrigerant exchanger heat exchanger 1275 may exchange heat between the compressed refrigerant and the refrigerant heated in the subcooler 126. Specifically, the inter-refrigerant heat exchanger 1275 may heat-exchange the refrigerant before compression after expansion with the refrigerant that is heated in the subcooling device 126 and before compression.
  • the refrigerant supply unit 127 may be provided as an N2 Bryton cycle to include an inter-refrigerant heat exchanger 1275, but the inter-refrigerant heat exchanger 1275 may be omitted.
  • the present embodiment uses the subcooled return of the liquefied gas to lower the internal pressure of the storage tank 110 before the bunkering, but utilizes the cold heat of the boiled gas supplied to the power generation engine 130 for the subcooled energy. It can improve the use efficiency.
  • FIG. 9 is a process flow diagram of a gas treatment system according to a sixth embodiment of the present invention.
  • the refrigerant supply unit 127 is a liquefied gas supplied from the storage tank 110 to the power generation engine 130 in comparison with the fifth embodiment. Can be cooled.
  • the liquefied gas of the storage tank 110 is supplied to the power generation engine 130 via the vaporizer 113, the present embodiment is to ensure that the liquefied gas to be vaporized is used for cooling the refrigerant, the supercooling effect of the liquefied gas before bunkering At the same time, the height of the carburetor 113 can be lowered or the carburetor 113 can be omitted.
  • Refrigerant heat exchanger (1274) of the present embodiment is different from the previous embodiment through the refrigerant circulation line (L7) and the boil-off gas consumption line (L4), so that the refrigerant circulation line (L7) and liquefied gas consumption line (L5) via Of course it is prepared.
  • the pump for liquefied gas subcooling in the previous embodiment may be a transfer pump 111 or a separate pump
  • the fuel supply pump 112 may be used as a pump for liquefied gas subcooling in this embodiment.
  • the present invention may include an embodiment of cooling the refrigerant to at least one of the boil-off gas and the liquefied gas supplied to the power generation engine 130 by combining the present embodiment and the previous embodiment, in this case refrigerant / liquefied gas It is possible to have a refrigerant heat exchanger 1274 alone / with a evaporation gas stream or to have a refrigerant heat exchanger 1274 of a refrigerant / liquefied gas stream and a refrigerant heat exchanger 1274 of a refrigerant / evaporation gas stream.
  • FIG. 10 is a process flow diagram of a gas treatment system according to a seventh embodiment of the present invention.
  • the gas treatment system according to the seventh exemplary embodiment of the present invention may be provided such that a refrigerant heat exchanger 1274 replaces an intercoolant heat exchanger 1275.
  • the refrigerant heat exchanger (1274) is composed of at least three streams for heat-exchanging the compressed refrigerant, the refrigerant heated in the subcooling device (126) and the liquefied gas or the boil-off gas supplied to the power generation engine (130), thereby performing heat exchange between the refrigerants. It may be provided in a structure containing.
  • the present embodiment does not include a heat exchanger 1275 between refrigerants, the configuration of the refrigerant supply unit 127 may be compactly reduced.
  • the power generation engine 130 in the case of the bunkering vessel BV, the power generation engine 130 must be sufficiently operated to operate the transfer pump 111 during the bunkering. Unlike gas-propelled vessels (GFS), the system is optimized efficiently considering the high fuel consumption in the berth.
  • GFS gas-propelled vessels
  • FIG. 11 is a process flowchart of the gas treatment system according to the eighth embodiment of the present invention.
  • a gas treating system is a cooling apparatus that cools and returns a liquefied gas or an evaporated gas of a storage tank 110 to a refrigerant similarly to the contents disclosed in the above embodiments.
  • Bunkering management unit 120 for adjusting the internal pressure of the storage tank 110 by using (122, 126).
  • the present embodiment presupposes the operation of the cooling apparatuses 122 and 126 to subcool the liquefied gas to allow the storage tank 110 to receive further evaporated gas, or the evaporated gas returned from the fuel tanks 210a and 210b.
  • the maximum return amount of the evaporated gas that the storage tank 110 can receive from the gas propulsion vessel GFS can be directly or indirectly derived.
  • the maximum return amount may be set to less than the flow rate of the boil-off gas delivered through the boil-off gas return line L2 during bunkering.
  • the present embodiment compresses the evaporated gas of the storage tank 110 to the power generation engine 130.
  • the sum of the amount of boil-off gas supplied by the boil-off gas compressor 121 and the maximum amount of boil-off gas of the storage tank 110 considering the cooling devices 122 and 126 may be equal to or higher than the amount of boil-off gas returned during bunkering. have.
  • Cooling device (122, 126) up to the return amount ⁇ bunkering on return amount ⁇ chiller system (122, 126) up to the return amount of the compressor throughput, taking into account consideration +
  • the compressor throughput may be a throughput when all the boil-off gas compressors 121 operate in parallel.
  • FIG. 12 is a process flowchart of the gas treatment system according to the ninth embodiment of the present invention.
  • the gas treatment system according to the ninth embodiment of the present invention optimizes the entire system in a direction different from the above embodiment.
  • the maximum return amount of the boil-off gas of the storage tank 110 considering the cooling devices 122 and 126 is equal to or higher than the boil-off gas return flow rate during bunkering. That is as follows.
  • the boil-off gas compressor 121 for compressing the boil-off gas of the storage tank 110 and supplying it to the power generation engine 130 may be omitted.
  • the liquefied gas of the storage tank 110 is pumped, It may be vaporized and supplied to the power generation engine 130.
  • the entire system may be simplified by omitting the boil-off gas compressor 121 while allowing the specifications of the cooling devices 122 and 126 to cover the boil-off flow rate returned when bunkering.
  • FIG. 13 is a process flow diagram of a gas treatment system according to a tenth embodiment of the present invention.
  • the gas treatment system according to the tenth embodiment of the present invention is optimized in a direction different from those of the eighth and ninth embodiments.
  • the storage tank 110 has a maximum return amount of the evaporated gas in the storage tank 110 considering the cooling devices 122 and 126 to be equal to or higher than the evaporation gas return flow rate during bunkering.
  • the boil-off gas can be supplied to the power generation engine 130, it is arranged as follows.
  • the boil-off gas compressor 121 for compressing the boil-off gas of the storage tank 110 and supplying the boil-off gas to the power generation engine 130 may be provided alone. That is, unlike the eighth embodiment in which the boil-off gas compressor 121 can back up each other, the back-up between the boil-off gas compressors 121 is impossible in this embodiment.
  • the present embodiment is configured such that the maximum return amount of the boil-off gas considering the cooling devices 122 and 126 already exceeds the return flow rate of the boil-off gas at the time of bunkering, it is not necessary to guarantee the backup between the boil-off compressors 121.
  • the present embodiment is provided so that at least one of the boil-off gas or liquefied gas can be supplied to the power generation engine 130, so that the supply of the boil-off gas supplies the liquefied gas. Can be backed up.
  • the present embodiment while allowing the boil-off gas returned during bunkering to be sufficiently processed, by configuring the boil-off gas compressor 121 alone, backed up the fuel supply to the liquefied gas, to reduce the installation and operation costs can do.
  • the present invention encompasses all of the embodiments generated by the combination of at least two or more of the above embodiments or a combination of at least one or more of the above embodiments and the known art, in addition to the embodiments described above.
  • bunkering management unit 121 boil-off gas compressor
  • 121a low pressure compressor 121b: boosting compressor
  • high pressure compressor 122 reliquefaction unit, chiller
  • boil-off gas heat exchanger 126 subcooling device, cooling device
  • refrigerant supply unit 130 power generation engine
  • L1 bunkering line
  • L2 boil-off gas return line
  • L5 Liquefied Gas Consumption Line
  • L6 Gas Supply Line

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

La présente invention concerne un système de traitement de gaz et un navire le comprenant, le système de traitement de gaz transférant un gaz liquéfié d'un réservoir de stockage d'un navire de soutage à un réservoir de carburant de type C disposé dans un navire à propulsion gazeuse. Le système de traitement de gaz comprend : une conduite de soutage pour apporter un gaz liquéfié du réservoir de stockage au réservoir de carburant; une partie de gestion de soutage pour liquéfier un gaz vaporisé dans le réservoir de stockage par un fluide frigorigène pour ramener le gaz vaporisé à un gaz liquéfié, ce qui permet d'ajuster une pression interne du réservoir de stockage; et une conduite de retour de gaz vaporisé permettant de transférer un gaz vaporisé produit dans le réservoir de carburant pendant le soutage par l'intermédiaire de la conduite de soutage vers le navire de soutage, la partie de gestion de soutage réduisant une pression interne du réservoir de stockage à ou sous une pression préconfigurée avant soutage, et maintenant la pression interne du réservoir de stockage sous une pression interne du réservoir de carburant de telle sorte qu'un gaz vaporisé est transféré dans la conduite de retour de gaz vaporisé sans être comprimé par un compresseur séparé.
PCT/KR2019/004166 2018-04-06 2019-04-08 Système de traitement de gaz et navire le comprenant Ceased WO2019194670A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SG11202009864UA SG11202009864UA (en) 2018-04-06 2019-04-08 Gas treatment system and ship including same
JP2021503688A JP7548898B2 (ja) 2018-04-06 2019-04-08 ガス処理システム及びこれを含む船舶
CN201980022626.3A CN111918817A (zh) 2018-04-06 2019-04-08 气体处理系统及包括该气体处理系统的船舶
JP2022173486A JP7677935B2 (ja) 2018-04-06 2022-10-28 ガス処理システム及びこれを含む船舶
JP2024099994A JP2024117812A (ja) 2018-04-06 2024-06-20 ガス処理システム及びこれを含む船舶

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KR20180040580 2018-04-06
KR10-2018-0040580 2018-04-06
KR20180111828 2018-09-18
KR10-2018-0111828 2018-09-18

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WO2019194670A8 WO2019194670A8 (fr) 2020-11-05

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JP2025509416A (ja) * 2022-03-08 2025-04-11 エイチディー コリア シップビルディング アンド オフショア エンジニアリング カンパニー リミテッド ガス処理システム及びそれを含む船舶
KR102688599B1 (ko) * 2022-03-08 2024-07-26 에이치디한국조선해양 주식회사 가스 처리 시스템
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KR20240136497A (ko) 2023-03-06 2024-09-19 삼성중공업 주식회사 액화수소 벙커링 시스템
WO2024219692A1 (fr) * 2023-04-18 2024-10-24 한화오션 주식회사 Système de reliquéfaction de dioxyde de carbone et procédé de reliquéfaction de dioxyde de carbone qui utilisent un cycle fermé
CN116928580B (zh) * 2023-08-09 2024-12-17 中山先进低温技术研究院 一种液氦容器预冷及充注系统
WO2025197084A1 (fr) * 2024-03-22 2025-09-25 日本郵船株式会社 Navire et procédé destiné à être utilisé dans un navire
WO2025197085A1 (fr) * 2024-03-22 2025-09-25 日本郵船株式会社 Navire et procédé destiné à être utilisé dans un navire

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JP2021517878A (ja) 2021-07-29
WO2019194670A8 (fr) 2020-11-05
KR102162168B1 (ko) 2020-10-06
KR102162165B1 (ko) 2020-10-06
JP7677935B2 (ja) 2025-05-15
JP2024117812A (ja) 2024-08-29
JP2022187023A (ja) 2022-12-15
KR102162164B1 (ko) 2020-10-06
JP7548898B2 (ja) 2024-09-10
KR20190117404A (ko) 2019-10-16
KR20190117403A (ko) 2019-10-16
KR20190117402A (ko) 2019-10-16
KR20190117406A (ko) 2019-10-16
KR20190117405A (ko) 2019-10-16

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