ES385316A1 - Low pressure ethylene recovery process - Google Patents

Low pressure ethylene recovery process

Info

Publication number
ES385316A1
ES385316A1 ES385316A ES385316A ES385316A1 ES 385316 A1 ES385316 A1 ES 385316A1 ES 385316 A ES385316 A ES 385316A ES 385316 A ES385316 A ES 385316A ES 385316 A1 ES385316 A1 ES 385316A1
Authority
ES
Spain
Prior art keywords
methane
vapor
separation zone
ethylene
low 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.)
Expired
Application number
ES385316A
Other languages
Spanish (es)
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.)
Fluor Corp
Original Assignee
Fluor Corp
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 Fluor Corp filed Critical Fluor Corp
Publication of ES385316A1 publication Critical patent/ES385316A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/09—Purification; Separation; Use of additives by fractional condensation
    • 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
    • F25J3/0204—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 characterised by the feed stream
    • F25J3/0219—Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
    • 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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0233—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 characterised by the separated product stream separation of CnHm with 1 carbon atom or more
    • 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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0238—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 characterised by the separated product stream separation of CnHm with 2 carbon atoms or more
    • 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
    • F25J3/0228—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 characterised by the separated product stream
    • F25J3/0252—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 characterised by the separated product stream separation of hydrogen
    • 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
    • F25J2200/04—Processes or apparatus using separation by rectification in a dual 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/70—Refluxing the column with a condensed part of the feed stream, i.e. fractionator top is stripped or self-rectified
    • 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
    • F25J2200/76—Refluxing the column with condensed overhead gas being cycled in a quasi-closed loop refrigeration 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/06—Splitting of the feed stream, e.g. for treating or cooling in different ways
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/12—Refinery or petrochemical off-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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/02—Internal refrigeration with liquid vaporising 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/04—Internal refrigeration with work-producing gas expansion loop
    • F25J2270/06—Internal refrigeration with work-producing gas expansion loop with multiple gas expansion loops
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • 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
    • F25J2290/40—Vertical layout or arrangement of cold equipments within in the cold box, e.g. columns, condensers, heat exchangers etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P30/00—Technologies relating to oil refining and petrochemical industry
    • Y02P30/40—Ethylene production

Landscapes

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

Abstract

Process for the removal of methane from a hydrocarbon feed containing ethylene, methane and higher boiling hydrocarbons with minimum loss of ethylene. Methane is separated overhead from the feed in a separation zone at a first lower pressure a first portion of this overhead vapor is expanded through an expansion motor producing an energy output, a second portion of the overhead vapor is compressed to a second pressure greater than the first pressure in a compressor driven by the motor output. The compressed vapor portion is then cooled to condense the major portion of the methane and the condensed methane is returned to the separation zone as reflux and recovering ethylene as bottoms from the separation zone. The methane vapor is recovered as fuel gas.
ES385316A 1969-11-07 1970-11-07 Low pressure ethylene recovery process Expired ES385316A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87484269A 1969-11-07 1969-11-07

Publications (1)

Publication Number Publication Date
ES385316A1 true ES385316A1 (en) 1974-07-16

Family

ID=25364683

Family Applications (1)

Application Number Title Priority Date Filing Date
ES385316A Expired ES385316A1 (en) 1969-11-07 1970-11-07 Low pressure ethylene recovery process

Country Status (8)

Country Link
US (1) US3675435A (en)
JP (1) JPS5146074B1 (en)
BE (1) BE758567A (en)
DE (1) DE2053244B2 (en)
ES (1) ES385316A1 (en)
FR (1) FR2069123A5 (en)
GB (1) GB1291745A (en)
NL (1) NL151972B (en)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827245A (en) * 1971-09-22 1974-08-06 Stone & Webster Eng Corp Recovery and purification of ethylene from direct hydration ethanol vent gas streams
GB1499798A (en) * 1974-03-04 1978-02-01 Petrocarbon Dev Ltd Providing methane and ethylene
US4002042A (en) * 1974-11-27 1977-01-11 Air Products And Chemicals, Inc. Recovery of C2 + hydrocarbons by plural stage rectification and first stage dephlegmation
JPS5347581U (en) * 1976-09-28 1978-04-22
US4167402A (en) * 1977-09-16 1979-09-11 Union Carbide Corporation Ethylene separation process
US4270940A (en) * 1979-11-09 1981-06-02 Air Products And Chemicals, Inc. Recovery of C2 hydrocarbons from demethanizer overhead
US4496380A (en) * 1981-11-24 1985-01-29 Shell Oil Company Cryogenic gas plant
US4410342A (en) * 1982-05-24 1983-10-18 United States Riley Corporation Method and apparatus for separating a liquid product from a hydrocarbon-containing gas
US4496381A (en) * 1983-02-01 1985-01-29 Stone & Webster Engineering Corp. Apparatus and method for recovering light hydrocarbons from hydrogen containing gases
JPS59121115U (en) * 1983-02-04 1984-08-15 日立電線株式会社 flat cable
US4507133A (en) * 1983-09-29 1985-03-26 Exxon Production Research Co. Process for LPG recovery
USRE33408E (en) * 1983-09-29 1990-10-30 Exxon Production Research Company Process for LPG recovery
US4617039A (en) * 1984-11-19 1986-10-14 Pro-Quip Corporation Separating hydrocarbon gases
DE3531307A1 (en) * 1985-09-02 1987-03-05 Linde Ag METHOD FOR SEPARATING C (ARROW DOWN) 2 (ARROW DOWN) (ARROW DOWN) + (ARROW DOWN) HYDROCARBONS FROM NATURAL GAS
US4695303A (en) * 1986-07-08 1987-09-22 Mcdermott International, Inc. Method for recovery of natural gas liquids
US4711651A (en) * 1986-12-19 1987-12-08 The M. W. Kellogg Company Process for separation of hydrocarbon gases
US4710214A (en) * 1986-12-19 1987-12-01 The M. W. Kellogg Company Process for separation of hydrocarbon gases
US4720293A (en) * 1987-04-28 1988-01-19 Air Products And Chemicals, Inc. Process for the recovery and purification of ethylene
US5035732A (en) * 1990-01-04 1991-07-30 Stone & Webster Engineering Corporation Cryogenic separation of gaseous mixtures
US5090977A (en) * 1990-11-13 1992-02-25 Exxon Chemical Patents Inc. Sequence for separating propylene from cracked gases
US5157925A (en) * 1991-09-06 1992-10-27 Exxon Production Research Company Light end enhanced refrigeration loop
US5377490A (en) * 1994-02-04 1995-01-03 Air Products And Chemicals, Inc. Open loop mixed refrigerant cycle for ethylene recovery
US5361589A (en) * 1994-02-04 1994-11-08 Air Products And Chemicals, Inc. Precooling for ethylene recovery in dual demethanizer fractionation systems
US5379597A (en) * 1994-02-04 1995-01-10 Air Products And Chemicals, Inc. Mixed refrigerant cycle for ethylene recovery
US5442924A (en) * 1994-02-16 1995-08-22 The Dow Chemical Company Liquid removal from natural gas
US5421167A (en) * 1994-04-01 1995-06-06 The M. W. Kellogg Company Enhanced olefin recovery method
EA000800B1 (en) * 1996-03-26 2000-04-24 Филлипс Петролеум Компани Method for removal aromatic and/or higher-molecular hydrocarbons from a methane-based gas stream by condensation and stripping and associated apparatus therefor
US6712880B2 (en) 2001-03-01 2004-03-30 Abb Lummus Global, Inc. Cryogenic process utilizing high pressure absorber column
US6931889B1 (en) * 2002-04-19 2005-08-23 Abb Lummus Global, Randall Gas Technologies Cryogenic process for increased recovery of hydrogen
US20050154245A1 (en) * 2003-12-18 2005-07-14 Rian Reyneke Hydrogen recovery in a distributed distillation system
US9080810B2 (en) * 2005-06-20 2015-07-14 Ortloff Engineers, Ltd. Hydrocarbon gas processing
US20090282865A1 (en) 2008-05-16 2009-11-19 Ortloff Engineers, Ltd. Liquefied Natural Gas and Hydrocarbon Gas Processing
FR2944523B1 (en) * 2009-04-21 2011-08-26 Technip France PROCESS FOR PRODUCING METHANE-RICH CURRENT AND CUTTING RICH IN C2 + HYDROCARBONS FROM A NATURAL LOAD GAS CURRENT, AND ASSOCIATED PLANT
US20100287982A1 (en) 2009-05-15 2010-11-18 Ortloff Engineers, Ltd. Liquefied Natural Gas and Hydrocarbon Gas Processing
US9021832B2 (en) * 2010-01-14 2015-05-05 Ortloff Engineers, Ltd. Hydrocarbon gas processing
US8667812B2 (en) 2010-06-03 2014-03-11 Ordoff Engineers, Ltd. Hydrocabon gas processing
US20130118202A1 (en) * 2011-11-14 2013-05-16 Michael D. Newman Co2 freezing apparatus
CN103159582B (en) * 2013-03-21 2015-06-17 杭州杭氧股份有限公司 Low-temperature separation system and method for propylene preparation through catalytic dehydrogenation of propane or mixed alkanes
EP3201549B1 (en) * 2014-09-30 2019-11-27 Dow Global Technologies LLC Process for increasing ethylene and propylene yield from a propylene plant
US10928128B2 (en) * 2015-05-04 2021-02-23 GE Oil & Gas, Inc. Preparing hydrocarbon streams for storage
US10533794B2 (en) 2016-08-26 2020-01-14 Ortloff Engineers, Ltd. Hydrocarbon gas processing
US10551119B2 (en) 2016-08-26 2020-02-04 Ortloff Engineers, Ltd. Hydrocarbon gas processing
US10551118B2 (en) 2016-08-26 2020-02-04 Ortloff Engineers, Ltd. Hydrocarbon gas processing
US11428465B2 (en) 2017-06-01 2022-08-30 Uop Llc Hydrocarbon gas processing
US11543180B2 (en) 2017-06-01 2023-01-03 Uop Llc Hydrocarbon gas processing
KR102423688B1 (en) * 2018-09-04 2022-07-21 주식회사 엘지화학 Method for preparing ethylene and apparatus for preparing ethylene
CN110173960A (en) * 2019-06-28 2019-08-27 正和集团股份有限公司 A kind of recycle device and technique of hydrogen-rich gas

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US2817961A (en) * 1954-08-09 1957-12-31 Ethyl Corp Ethylene recovery
US2880592A (en) * 1955-11-10 1959-04-07 Phillips Petroleum Co Demethanization of cracked gases
DE1135935B (en) * 1961-10-26 1962-09-06 Linde Eismasch Ag Method and device for the production of low-purity oxygen by low-temperature air separation
GB943669A (en) * 1961-11-03 1963-12-04 Petrocarbon Dev Ltd Separation of oxygen from air
US3186182A (en) * 1963-05-27 1965-06-01 Phillips Petroleum Co Low-temperature, low-pressure separation of gases
US3292380A (en) * 1964-04-28 1966-12-20 Coastal States Gas Producing C Method and equipment for treating hydrocarbon gases for pressure reduction and condensate recovery
US3292381A (en) * 1964-07-08 1966-12-20 Coastal States Petrochemical C Separation of natural gas by liquefaction with an injected hydrate inhibitor
US3377811A (en) * 1965-12-28 1968-04-16 Air Prod & Chem Liquefaction process employing expanded feed as refrigerant
US3503220A (en) * 1967-07-27 1970-03-31 Chicago Bridge & Iron Co Expander cycle for natural gas liquefication with split feed stream

Also Published As

Publication number Publication date
GB1291745A (en) 1972-10-04
JPS5146074B1 (en) 1976-12-07
NL7016247A (en) 1971-05-11
US3675435A (en) 1972-07-11
NL151972B (en) 1977-01-17
FR2069123A5 (en) 1971-09-03
BE758567A (en) 1971-05-06
DE2053244B2 (en) 1975-08-07
DE2053244A1 (en) 1971-05-19

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