Gas separation: processes – Solid sorption – Including reduction of pressure
Patent
1997-05-20
1998-11-10
Spitzer, Robert
Gas separation: processes
Solid sorption
Including reduction of pressure
95101, 95102, 95105, 95127, B01D 53053
Patent
active
058337377
ABSTRACT:
Krypton present in a trace amount in a gaseous oxygen
itrogen mixture is effectively enriched by an adsorption/desorption process of the pressure variation mode using a system including at least three fixed bed adsorption columns packed with hydrogenated mordenite. At the end of adsorption operation in one column, a desorbed gas from another column is fed to the one column under substantially the same pressure as the pressure during adsorption operation for fully washing the one column. Thereafter, the one column is subject to desorption operation.
REFERENCES:
patent: 3751878 (1973-08-01), Collins
patent: 3797201 (1974-03-01), Tamura
patent: 3922150 (1975-11-01), Yusa et al.
patent: 4054427 (1977-10-01), Schroeter et al.
patent: 4092133 (1978-05-01), Kamiya et al.
patent: 4314828 (1982-02-01), Saito et al.
patent: 4369048 (1983-01-01), Pence
patent: 4447353 (1984-05-01), Pence et al.
patent: 4475929 (1984-10-01), Fuderer
patent: 4512780 (1985-04-01), Fuderer
patent: 4726816 (1988-02-01), Fuderer
patent: 4790858 (1988-12-01), Sircar
patent: 4816041 (1989-03-01), Ringel et al.
Derwent Abstracts, AN 74-27766V, JP 48 091 500, Nov. 28, 1973.
Derwent Abstracts, AN 85-168114, JP 60 097 022, May 30, 1985.
D. T. Pence, et al., Work performed under contact AX-509991R, Science Applications, Inc., pp. 1-68, "A Design and Cost Estimate for the SRL Integrated Hot Off Gas Facility Using Selective Adsorption", Jul. 1981.
D. M. Ruthven, et al., The Canadian Journal of Chemical Engineering, vol. 62, pp. 526-534, "Adsorptive Separation of Kr From N.sub.2 -Part I Adsorbent Screening Studies", Aug. 1984.
F. H. Tezel, et al., The Canadian Journal of Chemical Engineering, vol. 68, pp. 268-277, "Adsorptive Separation of Kr From N.sub.2 -Part II. Development of a Pilot Unit", Apr. 1990.
Kumagai Mikio
Tamura Taka-aki
Institute of Research and Innovation
Spitzer Robert
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