[특허]Process for recovering condensable compounds from inert gas-condensable compound vapor mixtures

Process for recovering condensable compounds from inert gas-condensable compound vapor mixtures 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F25J-003/00
출원번호	US-0036725 (1993-03-25)
발명자 / 주소	Dinsmore Harold L. (Tulsa OK)
출원인 / 주소	John Zink Company, A Division of Koch Engineering Company, Inc. (Tulsa OK 02)
인용정보	피인용 횟수 : 28 인용 특허 : 0

초록 ▼

An improved process for recovering one or more condensable compounds from an inert gas-condensable compound vapor mixture is provided. The inert gas-condensable compound vapor mixture is flowed through a first bed of solid adsorbent whereby the condensable compounds are removed from the mixture and a residue gas stream comprised of substantially condensable compound-free inert gas is produced and disposed of, e.g., vented to the atmosphere. A second bed of solid adsorbent is evacuated by vacuum pumping using a cooled liquid seal vacuum pump. As the resulting inert gas-condensable compound vapor mixture is contacted with the cooled seal liquid of the liquid seal vacuum pump, a major portion of the condensable compounds are condensed. The condensed compounds are recovered and a portion thereof are cooled and recycled as cooled seal liquid for the vacuum pump.

대표청구항 ▼

An improved process for recovering at least one condensable compound from an inlet inert gas-condensable compound vapor mixture comprising the steps of: (a) flowing said inlet mixture through a first bed of solid adsorbent having an affinity for said condensable compound so that said condensable compound is adsorbed on said bed and a residue gas stream comprised of substantially condensable compound-free inert gas is produced; (b) conducting said substantially condensable compound-free inert gas to a location of use or disposal; (c) evacuating a second bed of solid adsorbent having said condensable compound adsorbed thereon by subjecting said bed to pumping with a cooled liquid seal vacuum pump so that a major portion of said condensable compound is desorbed from said bed, a condensable compound rich inert gas-condensable compound vapor mixture is produced and a major portion of said condensable compound in said inert gas-condensable compound vapor mixture is condensed as a result of said vapor mixture being contacted with said cooled seal liquid in said liquid seal vacuum pump whereby a stream of condensed compound and residue gas comprised of inert gas and a minor portion of condensable compound vapor exit said pump; (d) separating said condensed compound and residue gas stream exiting said pump in accordance with step (c) into a residue gas stream and a condensed compound stream; (e) combining the separated residue gas stream of step (d) with said inlet inert gas-condensable compound mixture of step (a) whereby the condensable compound contained therein is adsorbed on said first bed of solid adsorbent; (f) dividing the separated condensed compound stream of step (d) into first and second streams of condensed compound; (g) passing said first stream of condensed compound in heat exchange relationship with a cooling medium so that said first stream of condensed compound is cooled to a temperature which produces a condensed compound vapor pressure low enough to evacuate said second bed of solid adsorbent in accordance with step (c) and causes a major portion of said condensable compound vapor to be condensed in accordance with step (c) when said first stream of condensed compound is used as seal liquid for said liquid seal vacuum pump; (h) recycling said cooled first stream of condensed compound of step (g) to said vacuum pump as cooled seal liquid therefor; and (i) periodically changing the flow pattern of said inlet inert gas-condensable compound mixture and changing the bed of solid adsorbent being evacuated so that when the bed through which the inlet inert gas-condensable compound mixture is flowing becomes loaded with adsorbed condensable compound, the inlet inert gas-condensable compound mixture is caused to flow through the bed which has just been evacuated.

이 특허를 인용한 특허 (28)

Schroeder, Timothy; Vilmer, Darrell; Fink, Jr., Arthur C., Carbon canister for vapor recovery systems.
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Hart, Robert P.; Reid, Kent, Fuel storage tank pressure management system and method employing a carbon canister.
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Dahl Randall F. ; Fox Scott J. ; Greenfield Devin E. ; Steiner Thomas M., Hydrocarbon vapor recovery processes and apparatus.
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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., 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 modifying a liquid level during start-up operations.
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Popov Serguei A., Method for generating vacuum in mass-exchange columns.
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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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Finley Steven J. ; Sadkowski Piotr J. ; Athalye Atul M., Multi-component recovery apparatus and method.
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Jordan, Mark A.; Daub, Alexander K.; Boroff, Arthur L., Negative pressure vapor recovery system.
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Melissa G. Lenhart ; Harold L. Dinsmore ; Scott J. Fox, Process for recovering hydrocarbons from inert gas-hydrocarbon vapor mixtures.
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Brettschneider, Ole; Werner, Knud, Processes for removing organic components from gases containing hydrogen chloride.
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Brettschneider, Ole; Werner, Knud; Erwe, Torsten, Regenerative adsorption processes for removing organic components from gas streams.
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Bussman,Wesley R.; Waibel,Richard T.; Baukal, Jr.,Charles E.; Ruiz,Roberto; Chung,I Ping; Chellappan,Sellamuthu G., Remote staged furnace burner configurations and methods.
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Bussman,Wesley R.; Waibel,Richard T.; Baukal, Jr.,Charles E.; Ruiz,Roberto; Chung,I Ping; Chellappan,Sellamuthu G., Remote staged radiant wall furnace burner configurations and methods.
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Gibson David L., Return circuit for vapor recovery system.
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Oelfke, Russell H., Separating carbon dioxide and ethane from a mixed stream.
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Gibson David L., Vapor recovery system with continuous inlet monitoring.
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Menzenski Edward (Prospect KY), Vapor recovery system with cyclonic separator.
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Fink, Jr., Arthur C., Vapor trapping canister vapor pressure management system.
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연합인증

Process for recovering condensable compounds from inert gas-condensable compound vapor mixtures 원문보기

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