[특허]Process for separating higher hydrocarbons from natural or produced gas streams

Process for separating higher hydrocarbons from natural or produced gas streams 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/22
출원번호	US-0139914 (1987-12-31)
발명자 / 주소	Watler Kenneth G. (Houston TX)
출원인 / 주소	Membrane Technology & Research, Inc. (Menlo Park CA 02) Watler K. (Houston TX 02)
인용정보	피인용 횟수 : 55 인용 특허 : 13

초록 ▼

A process for separating ethane and other higher hydrocarbons from a natural or produced gas stream, having methane as its major constituent. A rubbery permselective membrane, having a propane/methane selectivity of 8 or above, is contacted on its feed side with a gas mixture typically containing methane, ethane, propane, butane, and small amounts of other hydrocarbons, water vapor, hydrogen sulfide and carbon dioxide. Carbon dioxide, water vapor, ethane and the other higher hydrocarbons permeate preferentially through the membrane, and the retentate stream is correspondingly enriched in methane.

대표청구항 ▼

A gas separation process, comprising the steps of: passing a first gas mixture comprising methane as its major constituent, and further comprising at least one gas from the group consisting of ethane and heavier hydrocarbons, across the feed side of a membrane having a feed side and a permeate side, said membrane comprising a microporous support layer and an ultrathin permselective layer, and wherein said membrane has a selectivity for propane over methane of 8 or more; withdrawing from said permeate side a second gas mixture enriched in at least one gas from the group consisting of ethane and heavier hydrocarbons compared with said first gas mixture, wherein the ratio of the volume flows of said second gas mixture and said first gas mixture is less than about 27%, and the ratio of the concentration of said one gas in said second gas mixture and said first gas mixture is at least about 3; and withdrawing from said feed side a third gas mixture enriched in methane compared with said first gas mixture.

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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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연합인증

Process for separating higher hydrocarbons from natural or produced gas streams 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 (55)

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Process for separating higher hydrocarbons from natural or produced gas streams 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 (55)

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