RU2005105044A - METHOD FOR LIQUIDING A RICH HYDROCARBON FLOW WITH SIMULTANEOUS EXTRACTION OF A C3 / C4 -RICH Fraction - Google Patents

METHOD FOR LIQUIDING A RICH HYDROCARBON FLOW WITH SIMULTANEOUS EXTRACTION OF A C3 / C4 -RICH Fraction Download PDF

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RU2005105044A
RU2005105044A RU2005105044/06A RU2005105044A RU2005105044A RU 2005105044 A RU2005105044 A RU 2005105044A RU 2005105044/06 A RU2005105044/06 A RU 2005105044/06A RU 2005105044 A RU2005105044 A RU 2005105044A RU 2005105044 A RU2005105044 A RU 2005105044A
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rich fraction
separation column
rich
column
fraction
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RU2005105044/06A
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Russian (ru)
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RU2313743C2 (en
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Рудольф ШТОККМАНН (DE)
Рудольф ШТОККМАНН
Мартин ГВИННЕР (DE)
Мартин ГВИННЕР
Пентти ПЕУРОЛА (NO)
Пентти ПЕУРОЛА
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Линде Акциенгезельшафт (De)
Линде Акциенгезельшафт
Статойл Аса (No)
Статойл Аса
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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
    • 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
    • F25J3/0209—Natural gas or substitute 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
    • 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
    • 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
    • F25J3/0247—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 4 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
    • F25J2200/30—Processes or apparatus using separation by rectification using a side column in a single pressure 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
    • F25J2205/30—Processes or apparatus using other separation and/or other processing means using a washing, e.g. "scrubbing" or bubble column for purification purposes
    • 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
    • F25J2205/50—Processes or apparatus using other separation and/or other processing means using absorption, i.e. with selective solvents or lean oil, heavier CnHm and including generally a regeneration step for the solvent or lean oil
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/64—Propane or propylene
    • 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
    • F25J2220/00—Processes or apparatus involving steps for the removal of impurities
    • F25J2220/60—Separating impurities from natural gas, e.g. mercury, cyclic hydrocarbons
    • 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
    • F25J2260/20—Integration in an installation for liquefying or solidifying a fluid 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
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration

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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)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (7)

1. Способ сжижения богатого углеводородами потока, прежде всего потока природного газа, с одновременным извлечением С3/С4-богатой фракции за счет теплообмена богатого углеводородами потока по меньшей мере с одним хладагентом и/или одной смесью хладагентов и подачи сжижаемого богатого углеводородами потока после его предварительного охлаждения в разделительную колонну, в которой от сжижаемого богатого углеводородами потока отделяют высшие углеводороды, с последующим его охлаждением и сжижением, при этом в разделительную колонну в качестве флегмы подают С2+-богатую фракцию, извлеченную из богатого углеводородами потока при его последующем охлаждении, отличающийся тем, что в разделительную колонну (Т1) подают в качестве дополнительной флегмы С4/С5-богатую фракцию (20, 35), располагая при этом точку подачи С4/С5-богатой фракции (20, 35) над точкой подачи С2+-богатой фракции (5) и предусматривая между точкой подачи С4/С5-богатой фракции (20, 35) и точкой подачи С2+-богатой фракции (5) зону массообмена (М).1. A method of liquefying a hydrocarbon-rich stream, especially a natural gas stream, while simultaneously extracting a C 3 / C 4- rich fraction by heat exchange of a hydrocarbon-rich stream with at least one refrigerant and / or one mixture of refrigerants and supplying a liquefied hydrocarbon-rich stream after pre-cooling it into a separation column, in which higher hydrocarbons are separated from the liquefied hydrocarbon-rich stream, followed by cooling and liquefaction, while in a separation column in ETS reflux fed C2 + -rich fraction, extracted from the hydrocarbon-rich stream during its subsequent cooling, characterized in that the separation column (T1) is fed as additional reflux liquid C 4 / C 5 -rich fraction (20, 35), having the feed point of the C 4 / C 5 rich fraction (20, 35) above the feed point of the C 2+ rich fraction (5) and providing between the feed point of the C 4 / C 5 rich fraction (20, 35) and the feed point With a 2+ -rich fraction (5), the mass transfer zone (M). 2. Способ по п.1, в котором полученные в разделительной колонне высшие углеводороды разделяют путем ректификации в несколько стадий, одна из которых предусматривает подачу высших углеводородов в пропаноотгонную колонну (Т2), отличающийся тем, что подаваемую в качестве дополнительной флегмы в разделительную колонну(Т1) С4/С5-богатую фракцию (20, 35) получают в боковой пропаноотгонной колонне (Т3), в которую подают отбираемую из пропаноотгонной колонны (Т2) С4+-богатую фракцию (14).2. The method according to claim 1, in which the higher hydrocarbons obtained in the separation column are separated by distillation in several stages, one of which involves the supply of higher hydrocarbons to the propane-stripping column (T2), characterized in that it is supplied as additional reflux to the separation column ( T1) The C 4 / C 5- rich fraction (20, 35) is obtained in the lateral propane stripping column (T3), into which the C 4+ -rich fraction taken from the propane stripping column (T2) is fed (14). 3. Способ по п.1, в котором полученные в разделительной колонне высшие углеводороды разделяют путем ректификации в несколько стадий, одна из которых предусматривает подачу высших углеводородов в бутаноотгонную колонну, отличающийся тем, что подаваемую в качестве дополнительной флегмы в разделительную колонну (Т1) С4/С5-богатую фракцию (20, 35) получают в боковой бутаноотгонной колонне.3. The method according to claim 1, in which the higher hydrocarbons obtained in the separation column are separated by distillation in several stages, one of which involves the supply of higher hydrocarbons to the butane distillation column, characterized in that it is supplied as additional reflux to the separation column (T1) C The 4 / C 5- rich fraction (20, 35) is obtained in a side butane distillation column. 4. Способ по п.1, отличающийся тем, что подаваемую в качестве дополнительной флегмы в разделительную колонну (Т1) С4/С5-богатую фракцию (20, 35) получают в боковой колонне (Т4) разделительной колонны (Т1), подавая в эту боковую колонну (Т4) из разделительной колонны (Т1) С4+-богатую фракцию (30).4. The method according to claim 1, characterized in that the C 4 / C 5 rich fraction (20, 35) supplied as additional reflux to the separation column (T1) is obtained in the side column (T4) of the separation column (T1) by feeding into this side column (T4) from the separation column (T1), the C 4+ rich fraction (30). 5. Способ по п.1, отличающийся тем, что С4/С5-богатую фракцию (20, 35) перед ее подачей в качестве дополнительной флегмы в разделительную колонну (Т1) охлаждают (Е5, Е7).5. The method according to claim 1, characterized in that the C 4 / C 5 rich fraction (20, 35) is cooled (E5, E7) before it is fed as additional reflux to the separation column (T1). 6. Способ по п.5, отличающийся тем, что подаваемую в качестве дополнительной флегмы в разделительную колонну (Т1) С4/С5-богатую фракцию (20, 35) при ее охлаждении (Е5, Е7) по меньшей мере частично конденсируют.6. The method according to claim 5, characterized in that the C 4 / C 5 rich fraction (20, 35) supplied as an additional reflux to the separation column (T1) is condensed at least partially by its cooling (E5, E7). 7. Способ по одному из пп.1-6, отличающийся тем, что содержание бензола в подаваемой в качестве дополнительной флегмы в разделительную колонну (Т1) С4/С5-богатой фракции (20, 35) составляет менее 500 ч./млн, предпочтительно менее 300 ч./млн.7. The method according to one of claims 1 to 6, characterized in that the benzene content of the 4 / C 5 rich fraction (20, 35) supplied as an additional reflux to the separation column (T1) is less than 500 ppm preferably less than 300 ppm
RU2005105044/06A 2002-07-23 2003-07-01 Method of liquefaction of the stream of the natural gas rich with the hydrocarbons with simultaneous extraction of the c3/c4-rich fraction RU2313743C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10233410A DE10233410A1 (en) 2002-07-23 2002-07-23 Process for liquefying a hydrocarbon-rich stream with simultaneous recovery of a C3 / C4-rich fraction
DE10233410.2 2002-07-23

Publications (2)

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RU2005105044A true RU2005105044A (en) 2006-06-10
RU2313743C2 RU2313743C2 (en) 2007-12-27

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Country Link
US (1) US20060005573A1 (en)
AU (1) AU2003281633A1 (en)
DE (1) DE10233410A1 (en)
NO (1) NO20050944L (en)
RU (1) RU2313743C2 (en)
WO (1) WO2004010064A1 (en)

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US6662589B1 (en) * 2003-04-16 2003-12-16 Air Products And Chemicals, Inc. Integrated high pressure NGL recovery in the production of liquefied natural gas
US20060260355A1 (en) * 2005-05-19 2006-11-23 Roberts Mark J Integrated NGL recovery and liquefied natural gas production
FR2959512B1 (en) * 2010-04-29 2012-06-29 Total Sa PROCESS FOR TREATING NATURAL GAS CONTAINING CARBON DIOXIDE
DE102012020354A1 (en) * 2012-10-16 2014-04-17 Linde Aktiengesellschaft Process for separating heavy hydrocarbons from a hydrocarbon-rich fraction
CA2906366A1 (en) * 2013-03-15 2014-09-25 Conocophillips Company Mixed-reflux for heavies removal in lng processing
FR3042984B1 (en) * 2015-11-03 2019-07-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude OPTIMIZATION OF A PROCESS FOR DEAZATING A NATURAL GAS CURRENT
CA2949012C (en) * 2016-01-22 2018-02-20 Encana Corporation Process and apparatus for processing a hydrocarbon gas stream
CN110173959B (en) * 2019-05-15 2021-04-02 挪威极地航运公司 Boil-off gas reliquefaction recovery system

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US3902329A (en) * 1970-10-28 1975-09-02 Univ California Distillation of methane and hydrogen from ethylene
US4150962A (en) * 1975-12-15 1979-04-24 Uop Inc. Pretreatment of raw natural gas prior to liquefaction
US4436540A (en) * 1982-10-15 1984-03-13 Exxon Research & Engineering Co. Low pressure separation for light hydrocarbon recovery
US4540422A (en) * 1984-04-18 1985-09-10 Phillips Petroleum Company Control of the concentration of methylacetylene and propadiene in a propylene/propane fractionation column
US4854955A (en) * 1988-05-17 1989-08-08 Elcor Corporation Hydrocarbon gas processing
DE19728153C2 (en) * 1997-07-03 1999-09-23 Linde Ag Process for liquefying a hydrocarbon-rich stream
DE10005722A1 (en) * 2000-02-09 2001-08-16 Linde Ag Low temperature decomposition of a hydrogen, methane and lower hydrocarbon stream comprises cooling and partial condensation of the reactant stream
DE10027903A1 (en) * 2000-06-06 2001-12-13 Linde Ag Recovery of a C2+ fraction from a hydrocarbon feed, especially natural gas, comprises fractionation in a column with a C3+ reflux stream
US6742358B2 (en) * 2001-06-08 2004-06-01 Elkcorp Natural gas liquefaction
DE10205366A1 (en) * 2002-02-08 2003-08-21 Linde Ag Liquefaction of hydrocarbon stream, such as natural gas, with simultaneous recovery of liquid natural gas fraction comprises rectification and absorption process

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US20060005573A1 (en) 2006-01-12
WO2004010064A1 (en) 2004-01-29
AU2003281633A1 (en) 2004-02-09
NO20050944L (en) 2005-02-22
DE10233410A1 (en) 2004-02-12
AU2003281633A8 (en) 2004-02-09
RU2313743C2 (en) 2007-12-27

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