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TR201808162T4 - Havanın düşük sıcaklıkta ayrıştırılması vasıtasıyla bir basınçlı gaz ürününün kazanılmasına yönelik yöntem ve cihaz. - Google Patents

Havanın düşük sıcaklıkta ayrıştırılması vasıtasıyla bir basınçlı gaz ürününün kazanılmasına yönelik yöntem ve cihaz. Download PDF

Info

Publication number
TR201808162T4
TR201808162T4 TR2018/08162T TR201808162T TR201808162T4 TR 201808162 T4 TR201808162 T4 TR 201808162T4 TR 2018/08162 T TR2018/08162 T TR 2018/08162T TR 201808162 T TR201808162 T TR 201808162T TR 201808162 T4 TR201808162 T4 TR 201808162T4
Authority
TR
Turkey
Prior art keywords
pressure
air
heat exchanger
main heat
compressed
Prior art date
Application number
TR2018/08162T
Other languages
English (en)
Inventor
Goloubev Dimitri
Original Assignee
Linde Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51176035&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=TR201808162(T4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Linde Ag filed Critical Linde Ag
Publication of TR201808162T4 publication Critical patent/TR201808162T4/tr

Links

Classifications

    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
    • F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04018—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of main feed air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
    • F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
    • F25J3/04054—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of air
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
    • F25J3/04084—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
    • F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
    • F25J3/04109—Arrangements of compressors and /or their drivers
    • F25J3/04145—Mechanically coupling of different compressors of the air fractionation process to the same driver(s)
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04163—Hot end purification of the feed air
    • F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
    • F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest pressure column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
    • F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
    • F25J3/04193—Division of the main heat exchange line in consecutive sections having different functions
    • F25J3/042—Division of the main heat exchange line in consecutive sections having different functions having an intermediate feed connection
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
    • F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
    • F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
    • F25J3/04381—Details relating to the work expansion, e.g. process parameter etc. using work extraction by mechanical coupling of compression and expansion so-called companders
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
    • F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
    • F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04654—Producing crude argon in a crude argon column
    • F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
    • F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
    • F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04642—Recovering noble gases from air
    • F25J3/04648—Recovering noble gases from air argon
    • F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
    • 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04812—Different modes, i.e. "runs" of operation
    • 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
    • F25J2200/52—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column in the high pressure column of a double pressure main column 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
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/02—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum
    • F25J2205/04—Processes or apparatus using other separation and/or other processing means using simple phase separation in a vessel or drum in the feed line, i.e. upstream of the fractionation step
    • 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
    • F25J2245/50—Processes or apparatus involving steps for recycling of process streams the recycled stream being oxygen

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Abstract

Havanın, bir yüksek basınç kolonu (21) ve bir düşük basınç kolonu (22) içeren bir Distilasyon Kolonları Sisteminde, düşük sıcaklıkta ayrıştırılması vasıtasıyla bir basınçlı gaz ürününün (72; 73) kazanılmasına yönelik olarak işlev gören yöntem ve cihazdır. Toplam besleme havası, bir ana hava kompresörü (2) içinde, yüksek basınç kolonunun (21) işleme basıncından en az 4 bar daha yüksek olan birinci bir basınca sıkıştırılır. Ana hava kompresörü (2) içinde sıkıştırılan besleme havasının (7) birinci kısmi akımı (8, 11, 14), bir ana ısı eşanjörü (13) içinde, bir ara sıcaklığa soğutulur ve birinci bir hava türbininde (15) çalışma verimi açısından gevşetilir. Çalışma verimi açısından gevşetilen birinci kısmi akımın (16) en az birinci kısmı, Distilasyon Kolonları Sistemine (40; 18, 19, 20) yönlendirilir. Ana hava kompresörü (2) içinde sıkıştırılan besleme havasının ikinci kısmi akımı (12, 27, 29, 30), özellikle birinci hava türbini (15) tarafından tahrik edilen birinci bir sekonder kompresörde (9), birinci basınçtan daha yüksek olan ikinci bir basınca yeniden sıkıştırılır, böylece, ana ısı eşanjöründe (13) bir ara sıcaklığa soğutulur, soğutma kompresörü olarak işletilen ve özellikle ikinci bir hava türbini (38) tarafından tahrik edilen ikinci bir sekonder kompresörde (28), ikinci basınçtan daha yüksek olan üçüncü bir basınca yeniden sıkıştırılır, böylece, ana ısı eşanjöründe (13) soğutulur ve akabinde gevşetilir (31) ve Distilasyon Kolonları Sistemi (32) içine yönlendirilir. Ana hava kompresörü (2) içinde sıkıştırılan besleme havasının (7) üçüncü kısmi akımı (436, 37), ana ısı eşanjörü (13) içinde, bir ara sıcaklığa soğutulur ve ikinci hava türbininde (38) çalışma verimi açısından gevşetilir. Çalışma verimi açısından gevşetilen üçüncü kısmi akımın en az birinci kısmı (339), Distilasyon Kolonları Sistemi (340) içine yönlendirilir. Birinci ürün akımı (69; 75) sıvı olarak Distilasyon Kolonları Sisteminden alınır ve bir basınç yükseltme (71; 76) ile birinci ürün basıncına tabi tutulur. Birinci ürün akımı, birinci ürün basıncı altında ana ısı eşanjöründe (13) buharlaştırılır veya psödo buharlaştırmaya tabi tutulur ve ısıtılır. Isıtılan birinci ürün akımı (72; 77), birinci basınçlı gaz ürünü (GOX IC; GAN IC) olarak kazanılır. Üçüncü kısmi akım (37), ikinci hava türbininde (38), yüksek basınç kolonunun (21) işleme basıncından en az 1 bar daha yüksek olan bir basınca gevşetilir. Çalışma verimi açısından gevşetilen üçüncü kısmi akımın en az birinci kısmı (339), ana ısı eşanjöründe (13) daha da soğutulur, sıvılaştırılır ve akabinde gevşetilir (341) ve Distilasyon Kolonları Sistemi içine yönlendirilir.

Description

TARIFNAME HAVANIN DÜSÜK SICAKLIKTA AYRISTIRILMASI VASITASIYLA BIR BASINÇLI GAZ ÜRÜNÜNÜN KAZANILMASINA YÖNELIK YÖNTEM VE CIHAZ Bulus, havanin düsük sicaklikta ayristirilmasi yardimiyla bir basinçli gaz ürününün degisken kazanimina yönelik bir yöntem ve bir cihaz ile ilgilidir. Havanin düsük sicaklikta ayristirilmasina yönelik yöntem ve cihazlar, örnegin Hausen/Linde, Tieftemperaturtechnik, 2. Auflage 1985, Kapitel 4 (Seiten 281 bis 337)`ten bilinir. Bu tür bir sistemin distilasyon kolonlari sistemi, Iki Kolonlu Sistem olarak (örnegin, klasik Linde Çift Sütunlu Sistem olarak) veya ayni zamanda Üçlü veya Çoklu Sütun Sistemi olarak da tasarlanabilir Bu, azot-oksijen ayristirmasina yönelik kolonlara ek olarak, yüksek saflikta ürünlerin ve/veya diger hava bilesenlerinin kazanilmasina yönelik, özellikle soy gazlarin, örnegin bir argon kazanimina ve/veya bir kripton-ksenon kazanimina yönelik diger cihazlara da sahip olabilir. buharlastirici akiskan akimi ile dolayli isi alisverisine girdigi bir isi esanjörüne referans gösterilir. Her bir kondansatör-buharlastirici, Sivilasma pasajlarindan veya buharlasma pasajlarindan olusan bir Sivilasma bosluguna ve bir buharlasma bosluguna sahiptir. Sivilasma boslugu içinde, birinci akiskan akiminin kondenzasyonu (sivilasmasi), buharlasma boslugu içinde, ikinci akiskan akiminin buharlasmasi yürütülür. Buharlasma ve Sivilasma bosluklari, birbirleri arasinda isi alisverisi iliskisi içinde bulunan pasaj gruplari tarafindan olusturulur. Bir kondensatör-buharlastiricinin buharlasma boslugu, Banyolu Buharlastirici, Düsmeli Film Buharlastiricisi veya Zorlamali Akisli Buharlastirici olarak tasarlanabilir. Bulusun prosesinde, basinçlandirilan akiskan bir ürün akimi, bir isi tasiyicisi karsisinda buharlastirilir ve sonuç olarak, içten sikistirilmis basinçli gaz ürünü olarak geri kazanilir. Bu yöntem, ayni zamanda içten sikistirma olarak da isimlendirilir. Bu, gaz formundaki basinçli ürünlerin kazanilmasina yönelik olarak islev görür. Süper kritik bir basinç durumunda, gerçek anlamda hiçbir faz geçisi gerçeklesmez, bu durumda, ürün akimi "psödo buharlastirmaya" tabi tutulur. Ürün akimi, örnegin, Iki Kolonlu Sistemin düsük basinç kolonundan çikan bir oksijen ürünü veya Iki Kolonlu Sistemin yüksek basinç kolonundan çikan veya yüksek basinç kolonunun ve düsük basinç kolonunun, isi alisverisi baglantisi halinde bulundugu ana kondensatörün sivilasma boslugundan (Psödo) buharlastirmaya tabi tutulan ürün akimina karsi, yüksek basinç altinda bulunan isi tasiyicisi sivilastirilir (veya süper kritik basinç altinda bulundugunda psödo sivilastirilir). Isi tasiyicisi, genellikle, havanin bir kismi tarafindan olusturulur, mevcut durumda bu, sikistirilan besleme havasinin "ikinci kismi akimidir". Bulus, özellikle, tüm besleme havasinin, distilasyon kolonlari sisteminin kolonlari içinde hüküm süren, maksimum distilasyon basincinin önemli oranda üzerindeki bir basinca (normal durumda bu, yüksek basinç kolonu basincidir) sikistirildigi sistemler ile ilgilidir. Bu tür sistemler, ayni zamanda, HAP Prosesi olarak isimlendirilir (HAP- high air pressure). Bu baglamda "birinci basinç", diger bir deyisle, tüm havanin sikistirildigi ana hava kompresörünün (MAC = main air compressor) çikis basinci, örnegin 4 bardan daha fazla, özellikle 6 ila 16 bar seklinde, maksimum distilasyon basincinin üstündedir. ana hava kompresörü, düzenli olarak, havanin sikistirilmasina yönelik olarak dissal enerji ile tahrik edilen tek makineyi temsil eder. "Tek makine" altinda, burada, tek kademeli veya çok kademeli bir kompresör anlasilir, bunun kademelerinin hepsi ayni tahrik ile baglidir, burada, bütün kademeler, ayni yuvaya yerlestirilir veya ayni tahrik ile birlestirilir. Bu tarzdaki HAP Yöntemine alternatif olarak, MAC-BAC Yöntemi sergilenir, bunda, hava, an hava kompresöründe, göreceli olarak düsük bir toplam hava basincina, örnegin yüksek basinç kolonunun isleme basincina sikistirilir (arti iletim kayiplari). Havanin bir kismi, ana hava kompresöründen, dissal enerji ile tahrik edilen bir hava sekonder kompresörü (BAC = booster air compressor) içinde, daha yüksek bir basinca sikistirilir. Yüksek basinç altindaki bu hava kismi (genellikle indüktör akimi olarak isimlendirilir), içten sikistirmali ürünün (psödo) buharlasmasina yönelik olarak gerekli isinin büyük kismini ana isi esanjörü içine teslim eder. Ana hava kompresörünün asagi akisi yönünde, bir indüktör valfinde veya bir sivi türbininde (DLE = dense quuid expander), distilasyon kolonlari sisteminde gerekli olan basinç gevsetilir. Giriste belirtilen tarzda, seri sekilde baglanan birinci sekonder kompresöre (isitma pompasi) ve ikinci sekonder kompresöre (sogutma pompasi) sahip yöntem, DE bir yöntemi enerji verimliligi açisindan daha da gelistirmeyi temel amaç olarak alir. Bu amaç, patent istem 1'in özellikleri vasitasiyla yerine getirilir. "Ikinci kismi akim" yani sira - indikatör akimina, özellikle yüksek üçüncü basinç altinda - diger bir indikatör akimi, örnegin 7 ila 15 bar, özellikle 10 ila 13 bar'lik nispeten düsük bir basinç altinda, ana isi esanjörünün soguk kismi vasitasiyla sürülür. Diger indikatör akimi, havanin türbininde olusturulur. Ana isi esanjörünün soguk kismindaki ek hava akimi, özellikle içten sikistirmali ürün azotunun 7 ve 15 bar arasinda kazandirildigi durumda, faydali bir isi alisverisi diyagraminin elde edilmesini ve böylece enerjiden tasarruf edilmesini olanakli kilar. Birçok durumda, ana hava kompresöründe sikistirilan havanin dördüncü bir kismi akimin, birinci basinç altinda, ana hava kompresörünün çikis basincinda, ana isi esanjöründe sogutulmasi ve akabinde gevsetilmesi ve distilasyon kolonlari sistemi içine yönlendirilmesi vasitasiyla ana isi esanjöründe isi alisverisi prosesinin ileri sekilde optimize edilmesi mümkündür. Patent istmleri 3 ve 4'te açiklandigi gibi, her iki türbin akimlarindan birisi veya her ikisi, birinci sekonder kompresörde ikinci kismi akim ile birlikte ikinci basinca yeniden sikistirilabilir. Özellikle üçüncü kismi akim, yeniden sikistirma olmadan da kalabilir; bu durumda, bu, birinci basinç altinda, ikinci hava türbinine yönlendirilir. Sistemin, periyodik olarak, özellikle düsük sivi üretimi ile veya saf gaz sistemi olarak sürülmesinin gerektigi durumda, bu zamanlara yönelik olarak, çalisma verimi açisindan gevsetilmis üçüncü kismi akimin ikinci kisminin, ana isi esanjörüne degil, bilakis, sivilasma boslugu içinde, kondensatör-buharlastirici olarak tasarlanan, yüksek basinç kolonunun bir hazne buharlastiricisina beslenmesi avantajlidir. Akabinde, yüksek basinç kolonunun hazne buharlastiricisinin buharlastirma boslugu içinde en azindan kismen yogunlastirilan akim, tercihen, bir ara noktada yüksek basinç kolonuna beslenir. Bulus ve bulusun diger nitelikleri, asagida, sekiller 1 ve 2'nin yardimiyla sematik olarak gösterilen düzenleme örnekleri vasitasiyla daha detayli olarak açiklanir. Sekil 1'de atmosferik hava (AIR), bir filtre (1) üzerinden bir ana hava kompresörü (2) tarafindan emilir. Ana hava kompresörü, bu örnekte bes kademeye sahiptir ve toplam hava akimini, örnegin 19,7 bar'lik "birinci basinca" sikistirir. Toplam hava akimi (3), ana hava kompresörünün (2) asagi akisi yönünde, birinci basinç altinda bir ön sogutmada (4) sogutulur. Ön sogutulmus toplam hava akimi (5), özellikle salterlenmesi degistirilebilen bir çift Moleküler Elek Sogurucu tarafindan olusturulan bir temizleme düzeneginde (6) temizlenir. Temizlenmis toplam hava akimi (7), birinci kisma (8) yönelik olarak, sicakta isletilen bir hava sekonder kompresöründe (9) bir sekonder sogutucu (10) ile, örnegin 24 bar'lik "ikinci basinca" yeniden sikistirilir ve akabinde, indüktör akimi) ayrilir. Birinci kismi akim (11), bir ana isi esanjöründe (13), yaklasik 135 K`lik birinci ara sicakliga sogutulur. Sogutulan birinci kismi akim (14), birinci hava türbininde (15), yaklasik 5,5 bar ikinci basinç tarafindan, çalisma verimi açisindan gevsetilir. Birinci hava türbini (15), sicak hava sekonder kompresörünü (9) tahrik eder. Çalisma verimi açisindan gevsetilen birinci kismi akim (16), bir ayristirici (faz ayirici) (17) içine yönlendirilir. Sivi kisim (18), borular (19 ve 20) üzerinden Distilasyon Kolonlari Sisteminin düsük basinç kolonu (22) içine yönlendirilir. Distilasyon Kolonlari Sistemi, bir yüksek basinç kolonu (21), düsük basinç kolonu (22) ve bir ana kondensatör (23) ve ayni zamanda, ham argon kolonuna (25) ve saf argon kolonuna (26) sahip geleneksel bir argon kazanimi (24) içerir. Ana kondensatör (23), somut örnek olarak selale buharlastirici seklinde kondensatör-buharlastirici olarak tasarlanir. Yüksek basinç kolonunun kafasindaki isleme basinci, örnekte 5,3 bar, ilgili düsük basinç kolonunun kafasinda 1,35 bar olur. Besleme havasinin ikinci kismi akimi (12), ana isi esanjöründe (13) ikinci ara sicakliga sogutulur, bu, birinci ara sicakliktan daha yüksektir, hat (27) üzerinden bir sogutma kompresörüne (28) gönderilir ve burada yaklasik 35 bar'lik bir "üçüncü basinca" yeniden sikistirilir. Yeniden sikistirilan ikinci kismi akim (29), ikinci ara sicakliktan daha yüksek olan üçüncü bir ara sicaklikta yeniden ana isi esanjörü (13) içine yönlendirilir ve burada soguk uca kadar sogutulur. Soguk ikinci kismi akim (30), bir indüktör valfinde (31), yaklasik olarak yüksek basinç kolonunun isleme basincina gevsetilir ve yüksek basinç kolonunun (21) hatti (32) üzerinden beslenir. Bir kisim (33), yeniden alinir, bir alt sogutma-karsi akimi (34) içinde sogutulur ve hatlar (35 ve 20) üzeninden düsük basinç kolonu (22) içine beslenir. Besleme havasinin "üçüncü kismi akimi" (436) ikinci basinç altinda, ana isi esanjörüne (13) yönlendirilir ve burada, örnekte, birinci ara sicakliktan biraz daha yüksek olan dördüncü bir ara sicakliga sogutulur. Sogutulan üçüncü kismi akim (37), ikinci hava türbininde (38), birinci basinç tarafindan, çalisma verimi açisindan gevsetilir. Çalisma verimi açisindan gevsetilen türbin akimi (339), en az 1 bar, özellikle 4 ila 10 bar yüksek basinç kolonunun isleme basinci üzerinde bulunan bir basinca sahiptir ve en az 10 K, özellikle 15 ila 40 K, düsük basinç-azot akiminin (55, 61) giris sicakliginin üzerinde bir sicaklikta, ana isi esanjörünün soguk ucu üzerinde bulunur. Akabinde, bu akim, ana isi esanjörünün soguk kisminda ileri sekilde sogutulur. Ileri sekilde sogutulan üçüncü kismi akim (340), üçüncü indüktör akimi olarak bir indüktör valfi (341) içinde yaklasik olarak yüksek basinç kolonu basincina gevsetilir ve hat (32) üzerinden yüksek basinç kolonu içine gönderilir. Bu sayede, ana isi esanjöründeki isi alisverisi islemi, özellikle nispeten düsük GAN-IC basinçlarinin, örnegin 7 ila 15 bar, özellikle yaklasik 12 bar olmasi durumunda, ileri sekilde optimize edilmeye izin verir. Ikinci hava türbini (38), sogutma kompresörünü (28) tahrik eder. Çalisma verimi açisindan gevsetilen üçüncü kismi akim (339), haznedeki yüksek basinç kolonu (21) (Kismi akimlar içinde ayni akimlarin dagitilmasi, sekil 1'deki çizimin gösteriminden farkli olarak, ayni zamanda, ana isi esanjörünün (13) içinde de uygulanabilir). soguk uca kadar, ana isi esanjörü (13) içinden akar. Soguk dördüncü kismi akim (42), bir indüktör valfinde (43), yaklasik olarak yüksek basinç kolonunun isleme basincina gevsetilir ve yüksek basinç kolonunun (21) hatti (32) üzerinden beslenir. Yüksek basinç kolonunun (21) oksijenle zenginlestirilmis hazne sivisi (44), asiri sogutma-ters akintisinda (34) sogutulur ve hat (45) üzerinden istege bagli argon kazanimina (24) yönlendirilir. Buradan üretilen buhar (46) ve arta kalan sivi (47), düsük basinç kolonu (22) içine beslenir. Yüksek basinç kolonunun (21) bas azotunun (48) birinci kismi (49), ana kondensatörün (23) sivilasma boslugu içinde, buharlasma boslugu içinde buharlastirilan, yüksek basinç kolonunun haznesinden çikan sivi oksijene karsin, tamamen veya büyük ölçüde tamamen sivilastirilir. Bu baglamda üretilen sivi azotun (50) birinci kismi (51), geri dönüs olarak yüksek basinç kolonu (21) üzerine verilir. Ikinci bir kisim (52), asiri sogutma-ters akintisi (34) içinde sogutulur, hat (53) üzerinden düsük basinç kolonu (22) içine beslenir. Sivi düsük basinç azotunun (53) en az bir kismi, düsük basinç kolonu (21) içine geri dönüs olarak hizmet eder; diger bir kisim (54), sivi azot ürünü (LIN) olarak kazanilabilir. Düsük basinç kolonunun (22) bir ara noktasindan, gaz formunda saf olmayan azot (61) çikarilir, asiri sogutma-ters akintisi (34) içinde ve ana isi esanjöründe (13) isitilir. Sicak, saf olmayan azot (62), atmosfere (ATM) üflenebilir (63) ve/veya temizleme düzenegine (6) yönelik rejenerasyon gazi (64) olarak kullanilabilir. Gaz formundaki azot (55), düsük basinç kolonunun (22) basindan itibaren, ayni sekilde, asiri sogutma-ters akintisi (34) içinde ve ana isi esanjörü (13) içinde isitilir ve hat (56) üzerinden, düsük basinç azot ürünü (GAN) olarak çikarilir. Hatlar (67 ve 68) (söz konusu argon geçisi), düsük basinç kolonunu (21), argon kazaniminin (24) ham argon kolonu (25) ile birlestirir. Düsük basinç kolonunun (21) haznesinden, sivi oksijenin (69) birinci kismi (70), "birinci ürün akimi" olarak çikarilir, bir oksijen pompasinda (71) örnegin 37 bar'lik bir "birinci ürün basincina" getirilir ve birinci ürün basinci altinda, ana isi esanjörü (13) içinde buharlastirilir ve son olarak hat (72) üzerinden "birinci basinçli gaz ürünü" (GOX IC - içten sikistirmali gaz formunda oksijen) olarak kazanilir. Düsük basinç kolonunun (21) haznesinden, sivi oksijenin (69) ikinci bir kismi (73), gerektiginde, asiri sogutma-ters akintisi (34) içinde sogutulur ve hat (74) üzerinden, sivi oksijen ürünü (LOX) olarak kazanilir. Örnekte, ayni zamanda, yüksek basinç kolonundan (21) çikan sivi azotun (50) üçüncü bir kismi (75), sirasiyla, bir iç sikistirmanin ana kondensatörüne (23) maruz birakilir, böylece bir azot pompasinda (76), örnegin 12 bar'lik Ikinci bir ürün basincina getirilir, ikinci ürün basinci altinda, ana isi esanjöründe (13) psödo buharlastirilir ve son olarak, hat (77) üzerinden, içten sikistirmali gaz formuna azot basinç ürünü (GAN IC) olarak kazanilir. Yüksek basinç kolonunun (21) gaz formundaki bas azotunun (48) ikinci bir kismi (78), ana isi esanjöründe isitilir ve hat (79) üzerinden, gaz formunda orta basinç ürünü olarak kazanilir veya - gösterildigi gibi - kapatma gazi (mühür gazi) olarak, gösterilen bir veya birçok proses pompasina yönelik olarak kullanilir. Sekil 2, sekil 1'den, besleme havasinin üçüncü kismi akiminin (36) birinci basinç altinda, ana isi esanjörüne (13) yönlendirilmesi ve bundan dolayi ikinci türbinin (38) buna uygun sekilde daha düsük bir giris basincina sahip olmasi ile ayrilir. Sekil 3'ün düzenleme örneginde, yüksek basinç kolonu, bir hazne buharlastiricisina (351) sahiptir. Bu, özellikle, en azindan periyodik olarak özellikle düsük bir sivi üretiminin veya hatta daha saf gaz isleyisinin arzu edilmesi durumunda kullanilir. Aksi durumda, ana isi esanjörünün soguk ucundan çok fazla havanin, üçüncü kismi akim olarak sürülmesi gerektiginden ve ana isi esanjörünün isleyisi bu nedenle daha az verimli olacagindan dolayi, önceki düzenleme örneginin türbini (38), maksimum kapasitesi ile sürülemez. Sekil 3'te, mevcut durumda, özellikle düsük sivi üretimi esnasinda, ana isi esanjöründeki türbinden (38) çikan üçüncü kismi akimin bir kismi (350) geçirilebilir. Türbin (38) (ve dolayisiyla kuplajlanan sogutma kompresörü) mevcut durumda, ana isi esanjöründeki isi alisverisi islemini yüklendirmeden, tam verim ile sürülebilir. Akim (350), hazne buharlastiricinin (351) buharlasma boslugunda en azindan kismen yogunlastirililr ve akabinde, yüksek basinç kolonunun hatti (352) üzerinden bir ara noktaya beslenir. Bu, böylece, yüksek basinç kolonunun alt kismindaki distilasyonu güçlendirir. Sekil 3'teki gösterimden farkli olarak, akim (350), ayni zamanda, ana isi esanjöründeki hazne buharlastiricisi içine yönlendirme öncesinde, çig durumuna sogutulabilir. Bu, ayri bir pasajda, ancak ayni zamanda, uygun noktada aradan çikarma ve uygun besleme dönüsümü vasitasiyla da gerçeklestirilebilir. TR
TR2018/08162T 2014-07-05 2015-06-25 Havanın düşük sıcaklıkta ayrıştırılması vasıtasıyla bir basınçlı gaz ürününün kazanılmasına yönelik yöntem ve cihaz. TR201808162T4 (tr)

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