RU2007136598A - METHOD FOR LIQUIDING A RICH HYDROCARBON FLOW - Google Patents

METHOD FOR LIQUIDING A RICH HYDROCARBON FLOW Download PDF

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Publication number
RU2007136598A
RU2007136598A RU2007136598/06A RU2007136598A RU2007136598A RU 2007136598 A RU2007136598 A RU 2007136598A RU 2007136598/06 A RU2007136598/06 A RU 2007136598/06A RU 2007136598 A RU2007136598 A RU 2007136598A RU 2007136598 A RU2007136598 A RU 2007136598A
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Russia
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refrigerants
boiling
mixture
hydrocarbon
stream
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RU2007136598/06A
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Russian (ru)
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ШМИДТ Ханс (DE)
ШМИДТ Ханс
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Линде Акциенгезельшафт (De)
Линде Акциенгезельшафт
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Publication of RU2007136598A publication Critical patent/RU2007136598A/en

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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
    • F25J1/02—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
    • 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
    • F25J1/003—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
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/008—Hydrocarbons
    • F25J1/0092—Mixtures of hydrocarbons comprising possibly also minor amounts of nitrogen

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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 богатого углеводородами потока, прежде всего потока природного газа, при осуществлении которого богатый углеводородами поток (X, X') сжижают за счет его теплообмена (Е) с трех- или многокомпонентной смесью хладагентов, одним из которых является компонент сжижаемого богатого углеводородами потока, другим является пропан, пропилен или углеводород С4, а еще одним является С2Н4 или С2Н6, поток (4, 7) смеси хладагентов подвергают по меньшей мере двухступенчатому сжатию (C1, С2), перед охлаждением (Е) и сопровождающимся производством холода расширением (а, b, с) смеси хладагентов ее разделяют (D) на высококипящую (5) и низкокипящую (2) фракции хладагентов, высококипящую (5) и низкокипящую (2) фракции хладагентов подают (4, 7) после их сопровождающегося производством холода расширения (а, b, с) у теплого конца теплообменника (Е) на сжатие (C1, C2) до давления разных уровней и по меньшей мере один отдельный поток (9) низкокипящей фракции (2) хладагента подвергают парциальной конденсации (D') и полученную при этом жидкую фракцию (11) переохлаждают (Е) и расширяют (с), отличающийся тем, что полученную на стадии или стадиях парциальной конденсации (D') одного или нескольких отдельных потоков низкокипящей фракции (2) хладагента другую высококипящую фракцию (11) переохлаждают, расширяют с понижением давления до давления высококипящей фракции (6, 7) и подают (13) в ту компрессорную ступень (C2), в которую подают также высококипящую фракцию (6, 7). ! 2. Способ по п.1, отличающийся тем, что в качестве смеси хладагентов используют трехкомпонентную смесь хладагентов. ! 3. Способ по п.1, отличающийся тем, что в качестве компонента смеси хладагентов дополнител�1. A method for liquefying a hydrocarbon-rich stream, primarily a natural gas stream, in which the hydrocarbon-rich stream (X, X') is liquefied due to its heat exchange (E) with a three- or multi-component mixture of refrigerants, one of which is a component of the liquefied hydrocarbon-rich stream stream, another is propane, propylene or C4 hydrocarbon, and another is C2H4 or C2H6, stream (4, 7) of a mixture of refrigerants is subjected to at least two stages of compression (C1, C2), before cooling (E) and the accompanying expansion of cold production ( a, b, c) mixtures of refrigerants are divided (D) into high-boiling (5) and low-boiling (2) refrigerant fractions, high-boiling (5) and low-boiling (2) refrigerant fractions are supplied (4, 7) after their expansion accompanied by the production of cold ( a, b, c) at the warm end of the heat exchanger (E) for compression (C1, C2) to pressures of different levels and at least one separate stream (9) of the low-boiling fraction (2) of the refrigerant is subjected to partial condensation (D') and obtained by in this case, the liquid fraction (11) is supercooled (E) and expanded (c), characterized in that the other high-boiling fraction (11) obtained at the stage or stages of partial condensation (D') of one or more separate streams of the low-boiling fraction (2) of the refrigerant is supercooled, is expanded with a decrease in pressure to the pressure of the high-boiling fraction (6, 7) and supplied (13) to the compressor stage (C2), into which the high-boiling fraction (6, 7) is also supplied. ! 2. The method according to claim 1, characterized in that a three-component mixture of refrigerants is used as a mixture of refrigerants. ! 3. Method according to claim 1, characterized in that as a component of the refrigerant mixture there is an additional

Claims (8)

1. Способ сжижения богатого углеводородами потока, прежде всего потока природного газа, при осуществлении которого богатый углеводородами поток (X, X') сжижают за счет его теплообмена (Е) с трех- или многокомпонентной смесью хладагентов, одним из которых является компонент сжижаемого богатого углеводородами потока, другим является пропан, пропилен или углеводород С4, а еще одним является С2Н4 или С2Н6, поток (4, 7) смеси хладагентов подвергают по меньшей мере двухступенчатому сжатию (C1, С2), перед охлаждением (Е) и сопровождающимся производством холода расширением (а, b, с) смеси хладагентов ее разделяют (D) на высококипящую (5) и низкокипящую (2) фракции хладагентов, высококипящую (5) и низкокипящую (2) фракции хладагентов подают (4, 7) после их сопровождающегося производством холода расширения (а, b, с) у теплого конца теплообменника (Е) на сжатие (C1, C2) до давления разных уровней и по меньшей мере один отдельный поток (9) низкокипящей фракции (2) хладагента подвергают парциальной конденсации (D') и полученную при этом жидкую фракцию (11) переохлаждают (Е) и расширяют (с), отличающийся тем, что полученную на стадии или стадиях парциальной конденсации (D') одного или нескольких отдельных потоков низкокипящей фракции (2) хладагента другую высококипящую фракцию (11) переохлаждают, расширяют с понижением давления до давления высококипящей фракции (6, 7) и подают (13) в ту компрессорную ступень (C2), в которую подают также высококипящую фракцию (6, 7).1. A method of liquefying a hydrocarbon-rich stream, especially a natural gas stream, in which a hydrocarbon-rich stream (X, X ') is liquefied by heat exchange (E) with a three- or multicomponent mixture of refrigerants, one of which is a component of a liquefied hydrocarbon-rich a stream, another is propane, propylene or a C 4 hydrocarbon, and another is C 2 H 4 or C 2 H 6 , the stream (4, 7) of the refrigerant mixture is subjected to at least two-stage compression (C1, C2), before cooling (E ) and associated production cold, by expanding (a, b, c) the mixture of refrigerants, it is separated (D) into high-boiling (5) and low-boiling (2) fractions of refrigerants, high-boiling (5) and low-boiling (2) fractions of refrigerants are supplied (4, 7) after their accompanying by producing a cold of expansion (a, b, c) at the warm end of the heat exchanger (E) to compress (C1, C2) to pressures of different levels and at least one separate stream (9) of the low-boiling fraction (2) of the refrigerant is subjected to partial condensation (D ' ) and the thus obtained liquid fraction (11) is cooled (E) and expanded (c), characterized in that The other high-boiling fraction (11) described in the stage or stages of partial condensation (D ') of one or several separate flows of the low boiling fraction (2) of the refrigerant is supercooled, expanded with decreasing pressure to the pressure of the high boiling fraction (6, 7), and fed (13) to the compressor stage (C2), to which a high-boiling fraction is also fed (6, 7). 2. Способ по п.1, отличающийся тем, что в качестве смеси хладагентов используют трехкомпонентную смесь хладагентов.2. The method according to claim 1, characterized in that as a mixture of refrigerants using a three-component mixture of refrigerants. 3. Способ по п.1, отличающийся тем, что в качестве компонента смеси хладагентов дополнительно используют азот.3. The method according to claim 1, characterized in that nitrogen is additionally used as a component of the mixture of refrigerants. 4. Способ по п.1, отличающийся тем, что в качестве дополнительного(-ых) компонента(-ов) смеси хладагентов используют по меньшей мере один углеводород С4-С6.4. The method according to claim 1, characterized in that at least one C 4 -C 6 hydrocarbon is used as the additional component (s) of the refrigerant mixture. 5. Способ по п.3, отличающийся тем, что в качестве дополнительного(-ых) компонента(-ов) смеси хладагентов используют по меньшей мере один углеводород С4-С6.5. The method according to claim 3, characterized in that at least one C 4 -C 6 hydrocarbon is used as the additional component (s) of the refrigerant mixture. 6. Способ по одному из пп.1-5, отличающийся тем, что фракции (2, 5) хладагентов по отдельности охлаждают (Е), по отдельности подвергают сопровождающемуся производством холода расширению (а, b, с) и по отдельности нагревают за счет теплообмена (Е) со сжижаемым богатым углеводородами потоком (X, X').6. The method according to one of claims 1 to 5, characterized in that the fractions (2, 5) of the refrigerants are individually cooled (E), individually subjected to expansion accompanied by the production of cold (a, b, c) and individually heated due to heat transfer (E) with a liquefied hydrocarbon-rich stream (X, X '). 7. Способ по п.6, отличающийся тем, что полученную на стадии или стадиях парциальной конденсации (D') одного или нескольких отдельных потоков низкокипящей фракции (2) хладагента другую высококипящую фракцию (11) переохлаждают, подвергают расширению с понижением давления до давления низкокипящей фракции (3, 4) и подают в ту компрессорную ступень (С1), в которую подают также низкокипящую фракцию (3, 4).7. The method according to claim 6, characterized in that obtained at the stage or stages of partial condensation (D ') of one or more separate flows of the low boiling fraction (2) of the refrigerant, the other high boiling fraction (11) is cooled, expanded under pressure to a low boiling pressure fraction (3, 4) and served in the compressor stage (C1), which also serves low-boiling fraction (3, 4). 8. Способ по п.7, отличающийся тем, что богатый углеводородами поток (X, X') сжижают за счет теплообмена со смесью хладагентов в пластинчатых теплообменниках, предпочтительно в одном единственном пластинчатом теплообменнике(Е).8. The method according to claim 7, characterized in that the hydrocarbon-rich stream (X, X ') is liquefied by heat exchange with a mixture of refrigerants in the plate heat exchangers, preferably in a single plate heat exchanger (E).
RU2007136598/06A 2005-03-04 2006-02-28 METHOD FOR LIQUIDING A RICH HYDROCARBON FLOW RU2007136598A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005010055.4 2005-03-04
DE102005010055A DE102005010055A1 (en) 2005-03-04 2005-03-04 Process for liquefying a hydrocarbon-rich stream

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US (1) US20090205366A1 (en)
EP (1) EP1864062A1 (en)
CN (1) CN101189483A (en)
AU (1) AU2006222325B2 (en)
BR (1) BRPI0609292A2 (en)
CA (1) CA2600027A1 (en)
DE (1) DE102005010055A1 (en)
NO (1) NO20075003L (en)
RU (1) RU2007136598A (en)
WO (1) WO2006094675A1 (en)

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WO2011117655A2 (en) * 2010-03-25 2011-09-29 The University Of Manchester Refrigeration process
CN102336626B (en) * 2010-07-28 2014-03-12 中国石油化工股份有限公司 Utilization method of waste gas discharged from butadiene extracting apparatus
CN102304403B (en) * 2011-08-08 2013-07-24 成都赛普瑞兴科技有限公司 Method and device for liquefying natural gas by using propylene precooling mixed cryogen
KR101392750B1 (en) * 2012-06-29 2014-05-09 한국에너지기술연구원 Natural gas liquefaction system and method using the same
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FR3098574B1 (en) * 2019-07-10 2021-06-25 Air Liquide Refrigeration and / or liquefaction device

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NO20075003L (en) 2007-10-03
CA2600027A1 (en) 2006-09-14
CN101189483A (en) 2008-05-28
EP1864062A1 (en) 2007-12-12
US20090205366A1 (en) 2009-08-20
WO2006094675A1 (en) 2006-09-14
AU2006222325A1 (en) 2006-09-14
DE102005010055A1 (en) 2006-09-07
AU2006222325B2 (en) 2011-03-24
BRPI0609292A2 (en) 2010-03-09

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