Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Patent
1991-11-06
1993-07-20
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
423219, 4232451, 55 28, B01D 5300
Patent
active
052290891
ABSTRACT:
A process for separating methane from an oxygen-containing gas mixture which contains methane at a concentration greater than the upper explosive gas mixture limit by pressure swing adsorption without producing an explosive gas mixture. The process includes the steps of feeding the gas mixture into an adsorber which contains an adsorbent which preferentially adsorbs methane until the desired production pressure is attained in the adsorber and then stopping the flow of feed gas into the adsorber and charging methane product gas at the production pressure cocurrently into the adsorber while simultaneously withdrawing nonadsorbed product gas from the nonadsorbed product end of the adsorber. The desorbed product stream is enriched in methane relative to the feed stream and the concentration of methane in the nonadsorbed product stream is less than the minimum flammable mixture concentration.
REFERENCES:
patent: 3797201 (1974-03-01), Tamura
patent: 4013429 (1977-03-01), Sircar et al.
patent: 4070164 (1978-01-01), Miwa et al.
patent: 4305734 (1981-12-01), McGill
patent: 4421530 (1983-12-01), Dalton, Jr. et al.
patent: 4734273 (1988-03-01), Haskell
patent: 4813980 (1989-03-01), Sircar
patent: 4859434 (1989-08-01), Roberts et al.
patent: 4963339 (1990-10-01), Krishnamurthy et al.
patent: 5089034 (1992-02-01), Markovs et al.
patent: 5090973 (1992-02-01), Jain
patent: 5096470 (1992-03-01), Krishnamurthy
Ramachandran Ramakrishnan
Shirley Arthur I.
Cassett Larry R.
Reap Coleman R.
Straub Gary P.
The BOC Group Inc.
Vanoy Timothy C.
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