[특허]Natural gas letdown liquefaction system

[미국특허] Natural gas letdown liquefaction system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-001/00 F25J-003/00
출원번호	US-0262259 (1999-03-04)
발명자 / 주소	Wissolik Robert
대리인 / 주소	Carella, Byrne, et alBain
인용정보	피인용 횟수 : 30 인용 특허 : 3

초록 ▼

A conventional air separator unit separates nitrogen, oxygen or argon merchant gas to be liquefied. Input pressurized natural gas is processed through a pressure letdown liquefaction system including gas separators for removing moisture and for drying the gas. The dried gas is then separated into large and small gas stream portions wherein CO.sub.2 in the smaller portion is removed. The two portions are passed through a first heat exchanger from which the larger portion is expanded which cools it and then passed through two heat exchangers including the first exchanger, used to regenerate the CO.sub.2 separator and drier and then returned to the input stream. The smaller portion is passed through the two heat exchangers to a throttle valve where the gas is liquefied and processed to a second set of heat exchangers which receive compressed separated merchant gas to be cooled by the liquefied natural gas and liquefied via an additional heat exchanger which receives cooled vapor separated from the liquefied merchant gas, the vapor being formed by a flash valve. The vapor is repetitively recycled through a compressor and passed through the second set of heat exchangers. Different embodiments are disclosed including a compander for expanding the merchant gas which is passed through the first and second set of heat exchangers and including an embodiment for supplying cold merchant gas rather than liquid merchant gas to an air separation unit for producing liquefied merchant gases.

대표청구항 ▼

[ What is claimed is:] [1.] A system for liquefying at least one of nitrogen, oxygen and argon merchant gas comprising:natural gas liquefying means responsive to pressurized natural gas applied at an input thereto including first heat exchanger means for cooling the applied natural gas and including means for liquefying a first portion of the cooled natural gas including means for removing CO.sub.2 solely from the first portion; andsecond heat exchanger means responsive to said liquefied first portion of gas applied as an input thereto for cooling and liquefying said at least one merchant gas applied to said second heat exchanger means.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Nagamura Takashi (Kobe JPX) Yamashita Naohiko (Kobe JPX), Air separating method using external cold source.
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Buffiere Jean-Pierre (Saint Mande FR) Vanderbussche Gerard (Fontenay-sous-Bois FR), Incorporated cascade cooling cycle for liquefying a gas by regasifying liquefied natural gas.
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Bonaquist Dante Patrick ; Cribbin Nancy Rose ; Weber Joseph Alfred ; Billingham John Fredric ; Nenov Neno Todorov, System for producing cryogenic liquefied industrial gas.
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이 특허를 인용한 특허 (30) 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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Wilding, Bruce M.; Bingham, Dennis N.; McKellar, Michael G.; Turner, Terry D.; Raterman, Kevin T.; Palmer, Gary L.; Klingler, Kerry M.; Vranicar, John J., Apparatus for the liquefaction of natural gas and methods related 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.
상세보기
Wilding, Bruce M.; Bingham, Dennis N.; McKellar, Michael G.; Turner, Terry D.; Rateman, Kevin T.; Palmer, Gary L.; Klinger, Kerry M.; Vranicar, John J., Apparatus for the liquefaction of natural gas and methods relating to same.
상세보기
Wilding, Bruce M.; Bingham, Dennis N.; McKellar, Michael G.; Turner, Terry D.; Raterman, Kevin T.; Palmer, Gary L.; Klingler, Kerry M.; Vranicar, John J., Apparatus for the liquefaction of natural gas and methods relating to same.
상세보기
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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Wilding,Bruce M.; Bingham,Dennis N.; McKellar,Michael G.; Turner,Terry D.; Raterman,Kevin T.; Palmer,Gary L.; Klingler,Kerry M.; Vranicar,John J., Apparatus for the liquefaction of natural gas and methods relating to same.
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Tranier,Jean Pierre, Combined air separation natural gas liquefaction plant.
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Turner, Terry D.; Wilding, Bruce M., Complete liquefaction methods and apparatus.
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Brugerolle,Jean Renaud; Ha,Bao, Cryogenic air separation process and apparatus.
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Rashad, M. Abdul-Aziz; Fitzgerald, Richard C.; Bonaquist, Dante Patrick; Saunders, John B.; Shah, Minish Mahendra, Gas liquefaction method using natural gas and mixed gas refrigeration.
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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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Ransbarger, Weldon L.; Martinez, Bobby D.; Praderio, Attilio J., LNG system with enhanced refrigeration efficiency.
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Howard,Henry Edward; Shah,Minish Mahendra, Method for producing liquefied natural gas.
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Vasiljev, Vladimir Yarslavovich; Kiselev, Oleg Mikhailovich, Method for recovering the energy of gas expansion and a recovery device for carrying out said method.
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Millar, Mackenzie; Lourenco, Jose, Method of producing and distributing liquid natural gas.
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Millar, MacKenzie; Lourenco, Jose, Method to produce LNG.
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Lourenco, Jose; Millar, MacKenzie, Method to produce natural gas liquids NGLs at gas Pressure Reduction Stations.
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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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Sally A. Thomas ; William W. Gilbert ; Alan Royce Huffman, Process and apparatus for coupled electromagnetic and acoustic stimulation of crude oil reservoirs using pulsed power electrohydraulic and electromagnetic discharge.
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Turner, Terry D.; McKellar, Michael G.; Wilding, Bruce M., Sublimation systems and associated methods.
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Vandor,David; Greenberg,Ralph, System and method for cold recovery.
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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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Turner, Terry D.; Wilding, Bruce M.; McKellar, Michael G.; Shunn, Lee P., Vaporization chambers and associated methods.
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[미국특허] Natural gas letdown liquefaction system 원문보기