DE3708649A1 - Verfahren zur rueckgewinnung von c(pfeil abwaerts)3(pfeil abwaerts)(pfeil hoch)+(pfeil hoch)-fluessigkeiten mit geringem druck aus einem verfahrensproduktgas - Google Patents

Verfahren zur rueckgewinnung von c(pfeil abwaerts)3(pfeil abwaerts)(pfeil hoch)+(pfeil hoch)-fluessigkeiten mit geringem druck aus einem verfahrensproduktgas

Info

Publication number
DE3708649A1
DE3708649A1 DE19873708649 DE3708649A DE3708649A1 DE 3708649 A1 DE3708649 A1 DE 3708649A1 DE 19873708649 DE19873708649 DE 19873708649 DE 3708649 A DE3708649 A DE 3708649A DE 3708649 A1 DE3708649 A1 DE 3708649A1
Authority
DE
Germany
Prior art keywords
product stream
hydrocarbons
recovery
absorption
remaining
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.)
Granted
Application number
DE19873708649
Other languages
German (de)
English (en)
Other versions
DE3708649C2 (enExample
Inventor
Lee Jarvis Howard
Howard Charles Rowles
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of DE3708649A1 publication Critical patent/DE3708649A1/de
Application granted granted Critical
Publication of DE3708649C2 publication Critical patent/DE3708649C2/de
Granted legal-status Critical Current

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
    • F25J3/0228—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
    • 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
    • F25J3/0242—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 3 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
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/80—Processes or apparatus using separation by rectification using integrated mass and heat exchange, i.e. non-adiabatic rectification in a reflux exchanger or dephlegmator
    • 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
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/04—Mixing or blending of fluids with the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/30—Compression of the feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • 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
    • F25J2260/00—Coupling of processes or apparatus to other units; Integrated schemes
    • F25J2260/02—Integration in an installation for exchanging heat, e.g. for waste heat recovery
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/906—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by heat driven absorption chillers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation By Low-Temperature Treatments (AREA)
DE19873708649 1986-03-24 1987-03-17 Verfahren zur rueckgewinnung von c(pfeil abwaerts)3(pfeil abwaerts)(pfeil hoch)+(pfeil hoch)-fluessigkeiten mit geringem druck aus einem verfahrensproduktgas Granted DE3708649A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/843,322 US4734115A (en) 1986-03-24 1986-03-24 Low pressure process for C3+ liquids recovery from process product gas

Publications (2)

Publication Number Publication Date
DE3708649A1 true DE3708649A1 (de) 1987-10-01
DE3708649C2 DE3708649C2 (enExample) 1991-08-22

Family

ID=25289636

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873708649 Granted DE3708649A1 (de) 1986-03-24 1987-03-17 Verfahren zur rueckgewinnung von c(pfeil abwaerts)3(pfeil abwaerts)(pfeil hoch)+(pfeil hoch)-fluessigkeiten mit geringem druck aus einem verfahrensproduktgas

Country Status (7)

Country Link
US (1) US4734115A (enExample)
JP (1) JPH083100B2 (enExample)
CA (1) CA1285210C (enExample)
DE (1) DE3708649A1 (enExample)
GB (1) GB2188408B (enExample)
MY (1) MY101638A (enExample)
NO (1) NO169092C (enExample)

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US4911741A (en) * 1988-09-23 1990-03-27 Davis Robert N Natural gas liquefaction process using low level high level and absorption refrigeration cycles
IT1247497B (it) * 1991-04-18 1994-12-17 Agip Petroli Procedimento perfezionato per il recupero di frazioni idrocarburiche pregiate dai prodotti leggeri di raffineria
US5339641A (en) * 1993-07-07 1994-08-23 Praxair Technology, Inc. Cryogenic liquid nitrogen production system
WO2001081720A1 (en) 2000-04-24 2001-11-01 Shell Internationale Research Maatschappij B.V. In situ recovery of hydrocarbons from a kerogen-containing formation
US7096953B2 (en) 2000-04-24 2006-08-29 Shell Oil Company In situ thermal processing of a coal formation using a movable heating element
US7011154B2 (en) 2000-04-24 2006-03-14 Shell Oil Company In situ recovery from a kerogen and liquid hydrocarbon containing formation
CA2668390C (en) 2001-04-24 2011-10-18 Shell Canada Limited In situ recovery from a tar sands formation
AU2002303481A1 (en) 2001-04-24 2002-11-05 Shell Oil Company In situ recovery from a relatively low permeability formation containing heavy hydrocarbons
US6991032B2 (en) 2001-04-24 2006-01-31 Shell Oil Company In situ thermal processing of an oil shale formation using a pattern of heat sources
US7055600B2 (en) 2001-04-24 2006-06-06 Shell Oil Company In situ thermal recovery from a relatively permeable formation with controlled production rate
US7077199B2 (en) 2001-10-24 2006-07-18 Shell Oil Company In situ thermal processing of an oil reservoir formation
US7165615B2 (en) 2001-10-24 2007-01-23 Shell Oil Company In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburden
US7090013B2 (en) 2001-10-24 2006-08-15 Shell Oil Company In situ thermal processing of a hydrocarbon containing formation to produce heated fluids
WO2003036040A2 (en) * 2001-10-24 2003-05-01 Shell Internationale Research Maatschappij B.V. In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
US7104319B2 (en) 2001-10-24 2006-09-12 Shell Oil Company In situ thermal processing of a heavy oil diatomite formation
WO2004038175A1 (en) * 2002-10-24 2004-05-06 Shell Internationale Research Maatschappij B.V. Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation
US7121342B2 (en) 2003-04-24 2006-10-17 Shell Oil Company Thermal processes for subsurface formations
ATE392534T1 (de) 2004-04-23 2008-05-15 Shell Int Research Verhinderung von rücklauf in einer beheizten senkung eines in-situ-umwandlungssystems
US7986869B2 (en) 2005-04-22 2011-07-26 Shell Oil Company Varying properties along lengths of temperature limited heaters
US8606091B2 (en) 2005-10-24 2013-12-10 Shell Oil Company Subsurface heaters with low sulfidation rates
WO2008060668A2 (en) 2006-04-21 2008-05-22 Shell Oil Company Temperature limited heaters using phase transformation of ferromagnetic material
US7681647B2 (en) 2006-10-20 2010-03-23 Shell Oil Company Method of producing drive fluid in situ in tar sands formations
US7841425B2 (en) 2007-04-20 2010-11-30 Shell Oil Company Drilling subsurface wellbores with cutting structures
EP2018899A1 (en) * 2007-07-23 2009-01-28 Total Petrochemicals Research Feluy Method for cooling in distillation and polymerisation process by absorption refrigeration
CA2700732A1 (en) 2007-10-19 2009-04-23 Shell Internationale Research Maatschappij B.V. Cryogenic treatment of gas
CA2718767C (en) 2008-04-18 2016-09-06 Shell Internationale Research Maatschappij B.V. Using mines and tunnels for treating subsurface hydrocarbon containing formations
JP2012509418A (ja) 2008-10-13 2012-04-19 シエル・インターナシヨナル・リサーチ・マートスハツペイ・ベー・ヴエー 地表下の坑井穴を形成するためのシステムおよび方法
WO2010118315A1 (en) 2009-04-10 2010-10-14 Shell Oil Company Treatment methodologies for subsurface hydrocarbon containing formations
US8701769B2 (en) 2010-04-09 2014-04-22 Shell Oil Company Methods for treating hydrocarbon formations based on geology
US8820406B2 (en) 2010-04-09 2014-09-02 Shell Oil Company Electrodes for electrical current flow heating of subsurface formations with conductive material in wellbore
US9127523B2 (en) 2010-04-09 2015-09-08 Shell Oil Company Barrier methods for use in subsurface hydrocarbon formations
US8631866B2 (en) 2010-04-09 2014-01-21 Shell Oil Company Leak detection in circulated fluid systems for heating subsurface formations
US9016370B2 (en) 2011-04-08 2015-04-28 Shell Oil Company Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
US9309755B2 (en) 2011-10-07 2016-04-12 Shell Oil Company Thermal expansion accommodation for circulated fluid systems used to heat subsurface formations
CN104428489A (zh) 2012-01-23 2015-03-18 吉尼Ip公司 地下含烃地层的原位热处理的加热器模式
GB2504765A (en) * 2012-08-09 2014-02-12 Linde Ag Waste heat recovery from micro LNG plant
CN109791018A (zh) * 2016-08-25 2019-05-21 沙特基础工业全球技术公司 用于丙烷脱氢反应器流出物的低温以上的分离方法
CN109701454B (zh) * 2019-01-28 2024-02-13 安庆市泰发能源科技有限公司 丁烷脱氢开工循环升温装置
RU2758767C1 (ru) * 2021-02-24 2021-11-01 Андрей Владиславович Курочкин Установка для отбензинивания попутного нефтяного газа

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US3817046A (en) * 1970-11-28 1974-06-18 Chinzoda Chem Eng & Constructi Absorption-multicomponent cascade refrigeration for multi-level cooling of gas mixtures
GB1539291A (en) * 1976-01-21 1979-01-31 Snam Progetti Separation of ethylene from ethane
US4350571A (en) * 1980-10-10 1982-09-21 Erickson Donald C Absorption heat pump augmented thermal separation process
US4381418A (en) * 1981-12-04 1983-04-26 Uop Inc. Catalytic dehydrogenation process
US4519825A (en) * 1983-04-25 1985-05-28 Air Products And Chemicals, Inc. Process for recovering C4 + hydrocarbons using a dephlegmator

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Publication number Priority date Publication date Assignee Title
US3817046A (en) * 1970-11-28 1974-06-18 Chinzoda Chem Eng & Constructi Absorption-multicomponent cascade refrigeration for multi-level cooling of gas mixtures
GB1539291A (en) * 1976-01-21 1979-01-31 Snam Progetti Separation of ethylene from ethane
US4350571A (en) * 1980-10-10 1982-09-21 Erickson Donald C Absorption heat pump augmented thermal separation process
US4381418A (en) * 1981-12-04 1983-04-26 Uop Inc. Catalytic dehydrogenation process
US4519825A (en) * 1983-04-25 1985-05-28 Air Products And Chemicals, Inc. Process for recovering C4 + hydrocarbons using a dephlegmator

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Also Published As

Publication number Publication date
DE3708649C2 (enExample) 1991-08-22
GB2188408B (en) 1989-11-15
JPH083100B2 (ja) 1996-01-17
GB8706404D0 (en) 1987-04-23
NO871104L (no) 1987-09-25
CA1285210C (en) 1991-06-25
GB2188408A (en) 1987-09-30
JPS62232489A (ja) 1987-10-12
NO169092C (no) 1992-05-06
NO871104D0 (no) 1987-03-18
NO169092B (no) 1992-01-27
MY101638A (en) 1991-12-31
US4734115A (en) 1988-03-29

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