WO2011136544A3 - Natural gas liquefaction process with refrigerant separation - Google Patents

Natural gas liquefaction process with refrigerant separation Download PDF

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Publication number
WO2011136544A3
WO2011136544A3 PCT/KR2011/003037 KR2011003037W WO2011136544A3 WO 2011136544 A3 WO2011136544 A3 WO 2011136544A3 KR 2011003037 W KR2011003037 W KR 2011003037W WO 2011136544 A3 WO2011136544 A3 WO 2011136544A3
Authority
WO
WIPO (PCT)
Prior art keywords
natural gas
liquefaction process
gas liquefaction
refrigerant
liquefaction
Prior art date
Application number
PCT/KR2011/003037
Other languages
French (fr)
Korean (ko)
Other versions
WO2011136544A2 (en
Inventor
이상규
최건형
조용범
이영범
박창원
양영명
Original Assignee
한국가스공사연구개발원
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 한국가스공사연구개발원 filed Critical 한국가스공사연구개발원
Publication of WO2011136544A2 publication Critical patent/WO2011136544A2/en
Publication of WO2011136544A3 publication Critical patent/WO2011136544A3/en

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
    • 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
    • F25J1/0002—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
    • F25J1/006—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
    • 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
    • F25J1/02—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
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • 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
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0291—Refrigerant compression by combined gas compression and liquid pumping
    • 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
    • F25J2210/60—Natural gas or synthetic natural gas [SNG]
    • 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

Abstract

The present invention relates to a natural gas liquefaction process which allows easy operation of the liquefaction system even though only a single refrigeration cycle is used and thus entails a straightforward liquefaction process and a compact system whereby a separator means is used in order to precisely separate the refrigerant into a heavy key portion and a light key portion according to the required composition, with one refrigerant flow being used to pre-cool the natural gas in a first heat-exchange zone and the other refrigerant flow being used to liquefy the natural gas in a second heat-exchange zone, and thus the natural gas liquefaction efficiency is outstanding.
PCT/KR2011/003037 2010-04-30 2011-04-26 Natural gas liquefaction process with refrigerant separation WO2011136544A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020100040637A KR101009853B1 (en) 2010-04-30 2010-04-30 Natural gas liquefaction process with refrigerant separator
KR10-2010-0040637 2010-04-30

Publications (2)

Publication Number Publication Date
WO2011136544A2 WO2011136544A2 (en) 2011-11-03
WO2011136544A3 true WO2011136544A3 (en) 2012-05-10

Family

ID=43616597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/003037 WO2011136544A2 (en) 2010-04-30 2011-04-26 Natural gas liquefaction process with refrigerant separation

Country Status (2)

Country Link
KR (1) KR101009853B1 (en)
WO (1) WO2011136544A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101056890B1 (en) 2011-04-12 2011-08-12 한국가스공사연구개발원 Natural gas liquefaction process
CN103038587B (en) 2010-08-16 2015-06-10 韩国Gas公社 Natural Gas Liquefaction Process
CN102538390B (en) * 2011-12-22 2014-08-06 西安交通大学 Novel natural gas liquefaction system and natural gas liquefaction method
KR101153100B1 (en) 2012-02-15 2012-06-04 한국가스공사연구개발원 Natural gas liquefaction process
KR101392750B1 (en) 2012-06-29 2014-05-09 한국에너지기술연구원 Natural gas liquefaction system and method using the same
KR101357720B1 (en) 2012-11-14 2014-02-05 고등기술연구원연구조합 Refrigeration system and refrigeration method for liquefying natural gas
KR101620182B1 (en) 2014-08-01 2016-05-12 한국가스공사 Natural gas liquefaction process
KR101616626B1 (en) * 2014-08-01 2016-04-28 한국가스공사 Natural gas liquefaction process
KR101689697B1 (en) * 2016-08-17 2016-12-26 (주)오운알투텍 High purity separation technology for mixed refrigerants
KR101717980B1 (en) 2016-08-30 2017-03-20 (주)오운알투텍 High purity separation technology for mixed refrigerants using level control
US10323880B2 (en) 2016-09-27 2019-06-18 Air Products And Chemicals, Inc. Mixed refrigerant cooling process and system
EP3951297B1 (en) * 2019-04-01 2023-11-15 Samsung Heavy Ind. Co., Ltd. Cooling system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901533A (en) * 1986-03-21 1990-02-20 Linde Aktiengesellschaft Process and apparatus for the liquefaction of a natural gas stream utilizing a single mixed refrigerant
KR20010086122A (en) * 1998-12-18 2001-09-07 추후제출 Dual multi-component refrigeration cycles for liquefaction of natural gas
KR20060085909A (en) * 2003-09-17 2006-07-28 에어 프로덕츠 앤드 케미칼스, 인코오포레이티드 Hybrid gas liquefaction cycle with multiple expanders
KR100609168B1 (en) * 2004-11-02 2006-08-02 엘지전자 주식회사 Cascade refrigerating cycle
KR20100013579A (en) * 2008-07-31 2010-02-10 한국과학기술원 Liquefaction cycle of natural gas using multi-component refrigerant expander and the working method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901533A (en) * 1986-03-21 1990-02-20 Linde Aktiengesellschaft Process and apparatus for the liquefaction of a natural gas stream utilizing a single mixed refrigerant
KR20010086122A (en) * 1998-12-18 2001-09-07 추후제출 Dual multi-component refrigeration cycles for liquefaction of natural gas
KR20060085909A (en) * 2003-09-17 2006-07-28 에어 프로덕츠 앤드 케미칼스, 인코오포레이티드 Hybrid gas liquefaction cycle with multiple expanders
KR100609168B1 (en) * 2004-11-02 2006-08-02 엘지전자 주식회사 Cascade refrigerating cycle
KR20100013579A (en) * 2008-07-31 2010-02-10 한국과학기술원 Liquefaction cycle of natural gas using multi-component refrigerant expander and the working method

Also Published As

Publication number Publication date
WO2011136544A2 (en) 2011-11-03
KR101009853B1 (en) 2011-01-19

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