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RU2011144360A - METHOD FOR LIQUIDING THE FRACTION ENRICHED WITH HYDROCARBONS - Google Patents

METHOD FOR LIQUIDING THE FRACTION ENRICHED WITH HYDROCARBONS Download PDF

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Publication number
RU2011144360A
RU2011144360A RU2011144360/06A RU2011144360A RU2011144360A RU 2011144360 A RU2011144360 A RU 2011144360A RU 2011144360/06 A RU2011144360/06 A RU 2011144360/06A RU 2011144360 A RU2011144360 A RU 2011144360A RU 2011144360 A RU2011144360 A RU 2011144360A
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Prior art keywords
fraction
temperature level
cooled
hydrocarbons
liquid
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RU2011144360/06A
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Russian (ru)
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RU2538156C2 (en
Inventor
Хайнц БАУЭР
Даниэль ГАРТЕ
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Линде Акциенгезелльшафт
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    • 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
    • F25J1/0047—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 an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—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 an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • F25J1/0055—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 an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream originating from an incorporated cascade
    • 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
    • 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
    • F25J1/0211—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 multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
    • F25J1/0212—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 multi-component refrigerant [MCR] fluid in a closed vapor compression cycle as a single flow MCR 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1. Способ сжижения фракции, обогащенной углеводородами, где охлаждение и сжижение фракции, обогащенной углеводородами, происходит путем косвенного теплообмена с холодильной смесью циркуляционного контура холодильной смеси, холодильная смесь сжимается по меньшей мере в две ступени, а после каждой ступени сжатия разделяется на газообразную и жидкую фракции, причем газообразная фракция последней ступени сжатия охлаждается до самого низкого температурного уровня, в то время как жидкая фракция по меньшей мере одной из промежуточных ступеней сжатия охлаждается до температурного уровня выше самого низкого температурного уровня, отличающийся тем, что жидкая фракция (3), охлаждаемая до температурного уровня выше самого низкого температурного уровня, охлаждается (Е3) перед косвенным теплообменом (Е) со сжижаемой фракцией (20), обогащенной углеводородами.2. Способ по п.1, отличающийся тем, что жидкая фракция (3), охлаждаемая до более высокого температурного уровня, охлаждается (Е3) перед косвенным теплообменом (Е) со сжижаемой фракцией (20), обогащенной углеводородами, до температуры на 2-15°С, предпочтительно, 4-7°С, ниже температуры сжатой холодильной смеси при разделении (D1) на газообразную и жидкую фазы.3. Способ по п.1 или 2, отличающийся тем, что охлаждение (E3) жидкой фракции (3), охлаждаемой до более высокого температурного уровня, происходит путем косвенного теплообмена с кипящими фракциями или одной кипящей фракцией (6), происходящей со стадии разделения (D2) на газообразную и жидкую фракции, которая следует за последующей ступенью сжатия (V2).4. Способ по п.1 или 2, отличающийся тем, что теплообмен между сжижаемой фракцией (20), об1. A method of liquefying a fraction enriched in hydrocarbons, where the cooling and liquefaction of a fraction enriched in hydrocarbons occurs by indirect heat exchange with the refrigerant mixture of the circulation circuit of the refrigerant mixture, the refrigerant mixture is compressed in at least two stages, and after each compression stage is separated into gaseous and liquid fractions, the gaseous fraction of the last compression stage being cooled to the lowest temperature level, while the liquid fraction of at least one of the intermediate stages its compression is cooled to a temperature level above the lowest temperature level, characterized in that the liquid fraction (3), cooled to a temperature level above the lowest temperature level, is cooled (E3) before indirect heat exchange (E) with the liquefied fraction (20) enriched hydrocarbons. 2. The method according to claim 1, characterized in that the liquid fraction (3), cooled to a higher temperature level, is cooled (E3) before indirect heat exchange (E) with the liquefied fraction (20) enriched in hydrocarbons, to a temperature of 2-15 ° C, preferably 4-7 ° C, below the temperature of the compressed refrigerant mixture during separation (D1) into gaseous and liquid phases. 3. The method according to claim 1 or 2, characterized in that the cooling (E3) of the liquid fraction (3), cooled to a higher temperature level, occurs by indirect heat exchange with boiling fractions or one boiling fraction (6) occurring from the separation stage (D2 ) to the gaseous and liquid fractions that follow the subsequent compression stage (V2) .4. The method according to claim 1 or 2, characterized in that the heat transfer between the liquefied fraction (20), about

Claims (8)

1. Способ сжижения фракции, обогащенной углеводородами, где охлаждение и сжижение фракции, обогащенной углеводородами, происходит путем косвенного теплообмена с холодильной смесью циркуляционного контура холодильной смеси, холодильная смесь сжимается по меньшей мере в две ступени, а после каждой ступени сжатия разделяется на газообразную и жидкую фракции, причем газообразная фракция последней ступени сжатия охлаждается до самого низкого температурного уровня, в то время как жидкая фракция по меньшей мере одной из промежуточных ступеней сжатия охлаждается до температурного уровня выше самого низкого температурного уровня, отличающийся тем, что жидкая фракция (3), охлаждаемая до температурного уровня выше самого низкого температурного уровня, охлаждается (Е3) перед косвенным теплообменом (Е) со сжижаемой фракцией (20), обогащенной углеводородами.1. A method of liquefying a fraction enriched in hydrocarbons, where the cooling and liquefaction of a fraction enriched in hydrocarbons occurs by indirect heat exchange with the refrigerant mixture in the circulation circuit of the refrigerant mixture, the refrigerant mixture is compressed in at least two stages, and after each compression stage is separated into gaseous and liquid fractions, the gaseous fraction of the last compression stage being cooled to the lowest temperature level, while the liquid fraction of at least one of the intermediate stages its compression is cooled to a temperature level above the lowest temperature level, characterized in that the liquid fraction (3), cooled to a temperature level above the lowest temperature level, is cooled (E3) before indirect heat exchange (E) with the liquefied fraction (20) enriched hydrocarbons. 2. Способ по п.1, отличающийся тем, что жидкая фракция (3), охлаждаемая до более высокого температурного уровня, охлаждается (Е3) перед косвенным теплообменом (Е) со сжижаемой фракцией (20), обогащенной углеводородами, до температуры на 2-15°С, предпочтительно, 4-7°С, ниже температуры сжатой холодильной смеси при разделении (D1) на газообразную и жидкую фазы.2. The method according to claim 1, characterized in that the liquid fraction (3), cooled to a higher temperature level, is cooled (E3) before indirect heat exchange (E) with the liquefied fraction (20) enriched in hydrocarbons, to a temperature of 2- 15 ° C, preferably 4-7 ° C, below the temperature of the compressed refrigerant mixture when separating (D1) into gaseous and liquid phases. 3. Способ по п.1 или 2, отличающийся тем, что охлаждение (E3) жидкой фракции (3), охлаждаемой до более высокого температурного уровня, происходит путем косвенного теплообмена с кипящими фракциями или одной кипящей фракцией (6), происходящей со стадии разделения (D2) на газообразную и жидкую фракции, которая следует за последующей ступенью сжатия (V2).3. The method according to claim 1 or 2, characterized in that the cooling (E3) of the liquid fraction (3), cooled to a higher temperature level, occurs by indirect heat exchange with boiling fractions or one boiling fraction (6) occurring from the separation stage (D2) into the gaseous and liquid fractions that follow the subsequent compression step (V2). 4. Способ по п.1 или 2, отличающийся тем, что теплообмен между сжижаемой фракцией (20), обогащенной углеводородами, и холодильной смесью (3, 5, 7, 9) происходит в многопоточном теплообменнике (Е), выполненном, предпочтительно, в виде пластинчатого или витого теплообменника.4. The method according to claim 1 or 2, characterized in that the heat exchange between the liquefied fraction (20) enriched in hydrocarbons and the refrigerant mixture (3, 5, 7, 9) takes place in a multi-threaded heat exchanger (E), preferably made in in the form of a plate or twisted heat exchanger. 5. Способ по п.3, отличающийся тем, что теплообмен между сжижаемой фракцией (20), обогащенной углеводородами, и холодильной смесью (3, 5, 7, 9) происходит в многопоточном теплообменнике (Е), выполненном, предпочтительно, в виде пластинчатого или витого теплообменника.5. The method according to claim 3, characterized in that the heat exchange between the liquefied fraction (20) enriched in hydrocarbons and the refrigeration mixture (3, 5, 7, 9) takes place in a multi-threaded heat exchanger (E), made preferably in the form of a plate or twisted heat exchanger. 6. Способ по одному из п.п.1, 2 или 5, отличающийся тем, что по крайней мере периодически по меньшей мере часть (11, 12) потока той фракции (5, 7), которая охлаждается (Е) до самого низкого температурного уровня, расширяется и подмешивается к расширенной жидкой фракции той фракции (9), которая охлаждается (Е) до температурного уровня выше самого низкого температурного уровня.6. The method according to one of claims 1, 2 or 5, characterized in that at least periodically at least a portion (11, 12) of the stream of that fraction (5, 7) that is cooled (E) to the lowest temperature level, expands and mixes with the expanded liquid fraction of that fraction (9), which is cooled (E) to a temperature level above the lowest temperature level. 7. Способ по п.3, отличающийся тем, что по крайней мере периодически, по меньшей мере часть (11, 12) потока той фракции (5, 7), которая охлаждается (Е) до самого низкого температурного уровня, расширяется и подмешивается к расширенной жидкой фракции той фракции (9), которая охлаждается (Е) до температурного уровня выше самого низкого температурного уровня.7. The method according to claim 3, characterized in that at least periodically, at least part (11, 12) of the stream of that fraction (5, 7), which is cooled (E) to the lowest temperature level, expands and mixes with expanded liquid fraction of that fraction (9), which is cooled (E) to a temperature level above the lowest temperature level. 8. Способ по п.4, отличающийся тем, что по крайней мере периодически, по меньшей мере часть (11, 12) потока той фракции (5, 7), которая охлаждается (Е) до самого низкого температурного уровня, расширяется и подмешивается к расширенной жидкой фракции той фракции (9), которая охлаждается (Е) до температурного уровня выше самого низкого температурного уровня. 8. The method according to claim 4, characterized in that at least periodically, at least part (11, 12) of the stream of that fraction (5, 7), which is cooled (E) to the lowest temperature level, expands and mixes with expanded liquid fraction of that fraction (9), which is cooled (E) to a temperature level above the lowest temperature level.
RU2011144360/06A 2009-04-02 2010-03-30 Method for liquefaction of fraction enriched with hydrocarbons RU2538156C2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102009016046A DE102009016046A1 (en) 2009-04-02 2009-04-02 Process for liquefying a hydrocarbon-rich fraction
DE102009016046.9 2009-04-02
PCT/EP2010/002034 WO2010112206A2 (en) 2009-04-02 2010-03-30 Method for liquefying a hydrocarbon-rich fraction

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RU2011144360A true RU2011144360A (en) 2013-05-10
RU2538156C2 RU2538156C2 (en) 2015-01-10

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CN (1) CN102575896B (en)
AR (1) AR076136A1 (en)
AU (1) AU2010230576B2 (en)
BR (1) BRPI1013386A2 (en)
CL (1) CL2011002391A1 (en)
DE (1) DE102009016046A1 (en)
MY (1) MY161644A (en)
NO (1) NO20111413A1 (en)
PE (1) PE20120848A1 (en)
RU (1) RU2538156C2 (en)
WO (1) WO2010112206A2 (en)

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DE102011010633A1 (en) * 2011-02-08 2012-08-09 Linde Ag Method for cooling a one-component or multi-component stream
DE102014018412A1 (en) * 2014-12-09 2016-06-09 Linde Aktiengesellschaft Flare-free starting of a natural gas liquefaction process
DE102015004125A1 (en) * 2015-03-31 2016-10-06 Linde Aktiengesellschaft Process for liquefying a hydrocarbon-rich fraction
US10323880B2 (en) 2016-09-27 2019-06-18 Air Products And Chemicals, Inc. Mixed refrigerant cooling process and system
US10753676B2 (en) 2017-09-28 2020-08-25 Air Products And Chemicals, Inc. Multiple pressure mixed refrigerant cooling process
US10852059B2 (en) * 2017-09-28 2020-12-01 Air Products And Chemicals, Inc. Multiple pressure mixed refrigerant cooling system

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US20080173043A1 (en) * 2005-03-09 2008-07-24 Sander Kaart Method For the Liquefaction of a Hydrocarbon-Rich Stream
CN201417042Y (en) * 2009-04-27 2010-03-03 赵德泉 Equipment with simplified mixed refrigerant liquefaction process

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NO20111413A1 (en) 2011-10-18
MY161644A (en) 2017-04-28
AU2010230576B2 (en) 2016-02-18
BRPI1013386A2 (en) 2016-03-29
CN102575896A (en) 2012-07-11
RU2538156C2 (en) 2015-01-10
CL2011002391A1 (en) 2012-02-10
WO2010112206A3 (en) 2012-10-11
AR076136A1 (en) 2011-05-18
WO2010112206A2 (en) 2010-10-07
CN102575896B (en) 2015-04-22
DE102009016046A1 (en) 2010-10-07
PE20120848A1 (en) 2012-07-11
AU2010230576A1 (en) 2011-09-15

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