Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1995-01-19
1996-04-16
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95143, 95144, B01D 53047
Patent
active
055078575
ABSTRACT:
A method of rectifying a multicomponent mixture by pressure swing adsorption to separate primary and secondary components of the mixture. Two groups of adsorbent beds are used in the method and adsorbent beds of the two groups are employed in a paired relationship and subjected to feed, co-current depressurization, evacuation, and countercurrent repressurization stages. In the feed stages, pairs of the adsorbent beds are pressurized with the mixture to adsorb the primary component in a first group of the adsorbent beds and in an entry section of a second group of the adsorbent beds. Also during the feed stage, the secondary component is adsorbed in the second group of adsorbent beds in remaining sections thereof. During co-current depressurization, any of the secondary component adsorbed in the first group of adsorbent beds and part of the primary component is driven to the second group of adsorbent beds. The adsorbent beds are individually evacuated to produce primary and secondary product streams rich in the primary and secondary components, respectively. Countercurrent repressurization is effected with a waste stream comprising the effluent from the feed stage. The countercurrent repressurization stage functions to bring the adsorbent beds back up to operating pressure and to drive the primary component back into the first group of adsorbent beds.
REFERENCES:
patent: 3078644 (1963-02-01), Milton
patent: 3619984 (1971-11-01), Domine et al.
patent: 3788037 (1974-01-01), Shell et al.
patent: 3977845 (1976-08-01), Walter
patent: 4000990 (1977-01-01), Bingham
patent: 4129424 (1978-12-01), Armond
patent: 4153428 (1979-05-01), Saunders et al.
patent: 4171207 (1979-10-01), Sircar
patent: 4299596 (1981-11-01), Benkmann
patent: 4376639 (1983-03-01), Vo
patent: 4539020 (1985-09-01), Sakuraya et al.
patent: 4790858 (1988-12-01), Sircar
patent: 4812147 (1989-03-01), BeVier
patent: 4813980 (1989-03-01), Sircar
patent: 4913709 (1990-04-01), Kumar
patent: 4914218 (1990-04-01), Kumar et al.
patent: 5051115 (1991-09-01), Leitgeb et al.
patent: 5133785 (1992-07-01), Kumar et al.
patent: 5234472 (1993-08-01), Krishnamurthy et al.
patent: 5245099 (1993-09-01), Mitariten
patent: 5248322 (1993-09-01), Kumar
patent: 5330561 (1994-07-01), Kumar et al.
patent: 5345025 (1994-09-01), Mitariten et al.
patent: 5354346 (1994-10-01), Kumar
patent: 5382280 (1995-01-01), Choe et al.
Kumar Ravi
Stern Sidney S.
Cassett Larry R.
Rosenblum David M.
Spitzer Robert
The BOC Group Inc.
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