[특허]Method and device for liquefying a natural gas without phase separation of the coolant mixtures

[미국특허] Method and device for liquefying a natural gas without phase separation of the coolant mixtures 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-001/00
출원번호	US-0113517 (1998-07-10)
우선권정보	FR-0005992 (1998-04-29)
발명자 / 주소	Paradowski Henri,FRX Rojey Alexandre,FRX
출원인 / 주소	Institut Francais du Petrole, FRX
대리인 / 주소	Antonelli, Terry, Stout & Kraus, LLP
인용정보	피인용 횟수 : 20 인용 특허 : 4

초록 ▼

A method allowing a gaseous mixture such as a natural gas to be liquefied by using a first compressed coolant mixture M.sub.1, at least partially condensed by cooling with the aid of an external coolant fluid, then subcooled, expanded, and vaporized, and a second compressed coolant mixture, cooled with the aid of an external coolant fluid, then cooled by heat exchange with the first coolant mixture M.sub.1 during the first cooling stage (I), after which it is in an at least partially condensed state. The second partially condensed coolant mixture is sent without phase separation to a second cooling stage (II) where it is fully condensed, expanded, and vaporized at at least two pressure levels. The subcooled natural gas is expanded to form the LNG produced.

대표청구항 ▼

[ We claim:] [1.] A method of liquefying a natural gas, comprising the steps of:(a) subjecting the natural gas to a first cooling cycle in which the natural gas is cooled to a temperature at least as low as -30.degree. C. by a first coolant mixture that has been compressed, at least partially condensed by cooling with a first external coolant fluid, subcooled, expanded, and vaporized;(b) after step (a), subjecting the natural gas to a second cooling cycle in which the natural gas is condensed and subcooled by a second coolant mixture that has been compressed, cooled with a second external coolant fluid, cooled by heat exchange with the first coolant mixture during the first cooling cycle, to bring the second coolant mixture to an at least partially condensed state, and subjected without phase separation to the second cooling step, to cause the second coolant mixture to be totally condensed, expanded, and evaporated at at least two pressure levels; and(c) after step (b), expanding the natural gas to form liquefied natural gas.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Van Baush Edward H. (Miami FL), Low temperature process for the recovery of ethane from thermal hydrocracking vent gases.
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Prevost Isabelle (Conflans Sainte Honorine FRX) Rojey Alexandre (Rueil Malmaison FRX), Method and apparatus for liquefaction of a natural gas.
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Prevost Isabelle (Conflans Sainte Honorine FRX) Rojey Alexandre (Rueil Malmaison FRX), Method and installation for the liquefaction of natural gas.
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Capron Pierre,FRX ; Rojey Alexandre,FRX, Process and device for liquefying a gaseous mixture such as a natural gas in two steps.
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이 특허를 인용한 특허 (20) 인용/피인용 타임라인 분석

Mori, Kazushi; Nagao, Hideki, Axial flow expander.
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Jorge H. Foglietta, LNG production using dual independent expander refrigeration cycles.
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Eaton,Anthony P.; Messersmith,David, LNG system employing optimized heat exchangers to provide liquid reflux stream.
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Eaton, Anthony P.; Messersmith, David; Bailey, Ed E., LNG system employing stacked vertical heat exchangers to provide liquid reflux stream.
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Kevenaar, Mark Antonius; Pek, Johan Jan Barend; Poh, Chun Kit, Method and apparatus for cooling a hydrocarbon stream.
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Jager, Marco Dick, Method and apparatus for cooling a stream, in particular a hydrocarbon stream such as natural gas.
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Mathias, James A.; Chadwell, G. Bradley; Qiu, Dongming; Tonkovich, Annalee Y.; Perry, Steven T.; Schmidt, Matthew B.; Fitzgerald, Sean P.; Hesse, David J.; Yuschak, Thomas D.; Yang, Bin, Multi-stream microchannel device.
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Mathias, James A.; Chadwell, G. Bradley; Qui, Dongming; Tonkovich, Anna Lee Y.; Perry, Steven T.; Schmidt, Matthew B.; Fitzgerald, Sean P.; Hesse, David J.; Yuschak, Thomas D.; Yang, Bin, Multi-stream multi-channel process and apparatus.
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Lee, Sang Gyu; Choe, Kun Hyung; Yang, Young Myung; Lee, Chul Gu; Cha, Kyu Sang; Park, Chang Won; Choi, Sung Hee; Lee, Yeong Beom, Natural gas liquefaction process.
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Minta, Moses, Natural gas liquefaction process.
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Mathias,James A.; Arora,Ravi; Simmons,Wayne W.; McDaniel,Jeffrey S.; Tonkovich,Anna Lee; Krause,William A.; Silva,Laura J.; Qiu,Dongming, Process for cooling a product in a heat exchanger employing microchannels.
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Mathias, James A.; Arora, Ravi; Simmons, Wayne W.; McDaniel, Jeffrey S.; Tonkovich, Anna Lee; Krause, William A.; Silva, Laura J., Process for cooling a product in a heat exchanger employing microchannels for the flow of refrigerant and product.
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Collins, Christopher Joseph; Galindo, Emmanuel G; Lau, Daisy Yuen; Mazumdar, Anindra; Mullen, Garrick Gerald; Plummer, Mae Alane, Reducing pressure of compressed gas from a storage tank.
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Fischer-Calderon, Ernesto, Self-refrigerated LNG process.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Severinsky, Alexander J., Systems, methods, and compositions for production of synthetic hydrocarbon compounds.
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Eaton,Anthony P.; Martinez,Bobby D.; Christian,Michael, Vertical heat exchanger configuration for LNG facility.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method and device for liquefying a natural gas without phase separation of the coolant mixtures 원문보기