[특허]Process and device for separation of at least one acid gas that is contained in a gas mixture

[미국특허] Process and device for separation of at least one acid gas that is contained in a gas mixture 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-003/00
출원번호	US-0846784 (2001-05-02)
우선권정보	FR-0005678 (2000-05-02)
발명자 / 주소	Alexandre Rojey FR Beatrice Fischer FR Ari Minkkinen FR
출원인 / 주소	Institut Francais du Petrole FR
대리인 / 주소	Millen, White, Zelano & Branigan, P.C.
인용정보	피인용 횟수 : 30 인용 특허 : 7

초록 ▼

For the separation of acid, carbon dioxide and/or hydrogen sulfide from a gaseous mixture comprising at least one lighter gas, e.g. methane, the gaseous mixture (1) is precooled at least once during a heat exchange operation E2; the resultant precooled gas mixture, flowing upwardly is cooled and rectified simultaneously in an approximately vertical heat exchange zone (ER) forming a downwardly-flowing countercurrent liquid reflux; the resultant rectified gaseous fraction (8) depleted in acid gases and enriched in light gas is collected at the top of the vertical exchange zone; and (d) a liquid fraction (4) enriched in acid gas components is collected at the bottom of the exchange zone. The collected liquid fraction (4) can be expanded and evaporated to provide cooling. The system has particular application for the treatment of natural gas or in petroleum refining or recovery operations.

대표청구항 ▼

1. A process for separating a fraction of acid gases comprising at least one of carbon dioxide and hydrogen sulfide from a gaseous mixture comprising at least one gas lighter than said acid gases, said process comprising the following stages:(a) precooling said gaseous mixture (1) at least once; (b) passing resultant precooled gaseous mixture obtained from stage (a) upwardly into an approximately vertical heat exchange zone (ER) wherein said gaseous mixture is indirectly heat exchanged to provide a downward liquid reflux, thereby contacting and rectifying the upwardly moving precooled gaseous mixture; (c) collecting at the top of the vertical exchange zone, a gaseous fraction (8) depleted in acid gases and enriched in light gas; and (d) collecting at the bottom of the exchange zone a liquid fraction (4) enriched in acid gas components; at least partly expanding and evaporating the liquid fraction collected at the end of stage (d) to provide, at least partially, refrigeration required during stage (b), and also to provide a mixture of expanded gaseous fraction and an acid-gas containing liquid fraction; and separating the expanded gaseous fraction(s) (10, 12) from the acid gas-rich liquid fraction and recycling the separated expanded gaseous fractions (10, 12) to stage (a).

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Sterner Anthony J,CAX, Acid gas fractionation.
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Howard Henry Edward, Carbon dioxide production system with integral vent gas condenser.
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Pantermuehl Leroy A. (Katy TX) Krisa Thomas E. (Houston TX), Carbon dioxide recovery.
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Trentham Harold L. (Houston TX) Hegwer Arnold M. (Houston TX), Method for separating carbon dioxide from methane.
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Gottier Gerry N. (Emmaus PA), Process for removal of carbon dioxide from mixtures containing carbon dioxide and methane.
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Sauer Richard A. (5601 Quincy St. Hinsdale IL 60521) Paganessi Joseph E. (31-35 Avenue Thierry Ville d\Avray FRX), Recovery of carbon dioxide from a carbon dioxide plant vent gas using membranes.
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Paradowski Henri (Cergy Pontoise FRX), Self-refrigerated method of cryogenic fractionation and purification of gas and heat exchanger for carrying out the meth.
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이 특허를 인용한 특허 (30) 인용/피인용 타임라인 분석

Turner, Terry D.; Wilding, Bruce M., Complete liquefaction methods and apparatus.
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Foglietta, Jorge H.; Milios, Paul; Yamin, Fereidoun, Cryogenic process for increased recovery of hydrogen.
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Cullinane, John Tim; Northrop, Paul Scott, Cryogenic system for removing acid gases from a hydrocarbon gas stream.
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Northrop, Paul Scott; Kelley, Bruce T; Mart, Charles J, Cryogenic system for removing acid gases from a hydrocarbon gas stream, and method of removing acid gases.
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Northrop, Paul Scott, Cryogenic systems for removing acid gases from a hydrocarbon gas stream using co-current separation devices.
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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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Singh, Vikram; Grave, Edward J.; Northrop, Paul Scott; Sundaram, Narasimhan, Integrated controlled freeze zone (CFZ) tower and dividing wall (DWC) for enhanced hydrocarbon recovery.
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Valencia, Jaime A.; Cullinane, J. Tim; Grave, Edward J.; Denton, Robert D., Method and device for separating a feed stream using radiation detectors.
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Valencia, Jaime A.; Deckman, Harry W.; Mart, Charles J.; Wilkins, James T.; Northrop, Paul Scott, Method and device for separating hydrocarbons and contaminants with a heating mechanism to destabilize and/or prevent adhesion of solids.
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Valencia, Jaime A.; Maher, David W., Method and device for separating hydrocarbons and contaminants with a spray assembly.
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Valencia, Jaime A.; Northrop, Paul Scott, Method and system for preventing accumulation of solids in a distillation tower.
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Valencia, Jaime A., Method and system for separating a feed stream with a feed stream distribution mechanism.
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Valencia, Jaime A.; Northrop, Paul Scott, Method and system of dehydrating a feed stream processed in a distillation tower.
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Valencia, Jaime A., Method and system of maintaining a liquid level in a distillation tower.
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Valencia, Jaime A., Method and system of modifying a liquid level during start-up operations.
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Valencia, Jaime A.; Northrop, Paul Scott, Method of removing solids by modifying a liquid level in a distillation tower.
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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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Hart, James M.; Borgerson, James B.; Wittkopp, Scott H.; Phillips, Andrew W.; Carey, Clinton E., Multi-speed transmission having three planetary gear sets.
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Northrop, Paul S; Anderson, Robbin Bruce, Removal of acid gases from a gas stream, with CO2 capture and sequestration.
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Cirucci,John Frederick; Miller,Derek; Kottler,Paul David, Self-contained distillation purifier/superheater for liquid-fill product container and delivery systems.
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Oelfke, Russell H., Separating carbon dioxide and ethane from a mixed stream.
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Turner, Terry D.; McKellar, Michael G.; Wilding, Bruce M., Sublimation systems and associated methods.
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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] Process and device for separation of at least one acid gas that is contained in a gas mixture 원문보기