[특허]Liquefaction process

[미국특허] Liquefaction process 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-003/00
출원번호	US-0051221 (1998-07-13)
우선권정보	GB-0020356 (1995-10-05)
국제출원번호	PCT/GB96/02443 (1996-10-04)
§371/§102 date	19980713 (19980713)
국제공개번호	WO-9713109 (1997-04-10)
발명자 / 주소	Dubar Christopher A. T.,AUX
출원인 / 주소	BHP Petroleum Pty Ltd., AUX
대리인 / 주소	Watson Cole Grindle Watson, P.L.L.C.
인용정보	피인용 횟수 : 31 인용 특허 : 1

초록 ▼

A natural gas liquefaction process comprises passing natural gas through a series of heat exchangers in countercurrent relationship with a gaseous refrigerant circulated through a work expansion cycle. The work expansion cycle comprises compressing the refrigerant, dividing and cooling the refrigerant to produce at least first and second cooled refrigerant streams, substantially isentropically expanding the first refrigerant stream to a coolest refrigerant temperature, substantially isentropically expanding the second refrigerant stream to an intermediate refrigerant temperature warmer than said coolest refrigerant temperature, and delivering the refrigerant in the first and second refrigerant streams to a respective heat exchanger for cooling the natural gas through corresponding temperature ranges. The refrigerant in the first stream is isentropically expanded to a pressure at least 10 times greater than the total pressure drop of the first refrigerant stream across said series of heat exchangers, said pressure being in the range of 1.2 to 2.5 MPa.

대표청구항 ▼

[ I claim:] [1.] A natural gas liquefaction process comprising passing natural gas through a series of heat exchangers in countercurrent relationship with a gaseous refrigerant circulated through a work expansion cycle, said work expansion cycle comprising compressing the refrigerant, dividing and cooling the refrigerant to produce at least first and second cooled refrigerant streams, substantially isentropically expanding the first refrigerant stream to a coolest refrigerant temperature, substantially isentropically expanding the second refrigerant stream to an intermediate refrigerant temperature warmer than said coolest refrigerant temperature, and delivering the refrigerant in the first and second refrigerant streams to a respective heat exchanger for cooling the natural gas through corresponding temperature ranges, wherein the refrigerant of the first stream is isentropically expanded to a pressure at least 10 times greater than the total pressure drop of the refrigerant of the first refrigerant stream across said series of heat exchangers, said pressure being in the range 1.2 to 2.5 MPa.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Dubar Christopher Alfred,AUX, Liquefaction process.
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이 특허를 인용한 특허 (31) 인용/피인용 타임라인 분석

Turner, Terry D.; Wilding, Bruce M.; McKellar, Michael G., Apparatus for the liquefaction of a gas and methods relating to same.
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Turner, Terry D.; Wilding, Bruce M.; McKellar, Michael G., Apparatus for the liquefaction of natural gas and methods relating to same.
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Wilding, Bruce M.; McKellar, Michael G.; Turner, Terry D.; Carney, Francis H., Apparatus for the liquefaction of natural gas and methods relating to same.
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Togna, Keith A.; Euen, Craig T.; Weeks, Steven W.; Loya, Mohammed I.; Warren, Matthew C.; Kendrick, Richard H., Chemically-modified mixed fuels, methods of production and uses thereof.
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Togna, Keith A.; Euen, Craig T.; Weeks, Steven W.; Loya, Mohammed I.; Warren, Matthew C.; Kendrick, Richard H., Chemically-modified mixed fuels, methods of production and uses thereof.
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Turner, Terry D.; Wilding, Bruce M., Complete liquefaction methods and apparatus.
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Arman Bayram ; Bonaquist Dante Patrick ; Weber Joseph Alfred ; Vincett Mark Edward, Cryogenic air separation process for producing gaseous nitrogen and gaseous oxygen.
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Runbalk, David Bertil, Floating system for liquefying natural gas.
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Shah, Kamal, Gas conditioning process for the recovery of LPG/NGL (C2+) from LNG.
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Turner, Terry D.; McKellar, Michael G., Heat exchanger and related methods.
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Turner, Terry D.; Wilding, Bruce M, Heat exchangers comprising at least one porous member positioned within a casing.
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Roberts,Mark Julian; Spilsbury,Christopher Geoffrey; Brostow,Adam Adrian, Hybrid gas liquefaction cycle with multiple expanders.
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Roberts, Mark Julian; Brostow, Adam Adrian, Liquefaction method and system.
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Roberts, Mark Julian; Brostow, Adam Adrian, Liquefaction method and system.
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Jakobsen, Arne; Rummelhoff, Carl J.; Haukedal, Bjorn H., Method and system for optimized LNG production.
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Bonnissel, Marc; Du Parc, Bertrand; Zielinski, Eric, Method for liquefying natural gas with a mixture of coolant gas.
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Frassinelli, Luca; Rossin, Stefano; Meiattini, Daniela, Method for moving and aligning heavy device.
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Zollinger,William T.; Bingham,Dennis N.; McKellar,Michael G.; Wilding,Bruce M.; Klingler,Kerry M., Method of Liquifying a gas.
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Turner, Terry D.; Wilding, Bruce M., Methods of conveying fluids and methods of sublimating solid particles.
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Wilding, Bruce M.; Turner, Terry D., Methods of natural gas liquefaction and natural gas liquefaction plants utilizing multiple and varying gas streams.
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Wyllie, Michael; Criminisi, Francesco, Multi nitrogen expansion process for LNG production.
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Fredheim,Arne Olay; Paurola,Pentti, Natural gas liquefaction process.
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Minta, Moses; Stone, John B.; Feist, Raymond Scott, Natural gas liquefaction processes with feed gas refrigerant cooling loops.
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Eaton,Anthony P.; Qualls,Wesley R., Optimized LNG system with liquid expander.
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Fanning, Robert A.; Davis, Keenis E.; Kaucher, James E.; Szabados, Rudolph J., Processes and systems for liquefying natural gas.
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Roberts, Mark Julian; Brostow, Adam Adrian, Refrigerant composition control.
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Fischer-Calderon, Ernesto, Self-refrigerated LNG process.
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Turner, Terry D.; McKellar, Michael G.; Wilding, Bruce M., Sublimation systems and associated methods.
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Howard, Henry Edward; Acharya, Arun; Arman, Bayram; Wulf, James Bragdon, Supercritical refrigeration system.
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Chong, Wen Sin; Sheng, Xiaoxia; Atapattu, Ravindu; Foo, Kok Seng, System and process for natural gas liquefaction.
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Turner, Terry D.; Wilding, Bruce M.; McKellar, Michael G.; Shunn, Lee P., Vaporization chambers and associated methods.
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A	생활필수품
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[미국특허] Liquefaction process 원문보기