Helium recovery

Details Helium recovery Helium recovery

1994-10-21

1996-08-06

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95103, 95105, 95130, 95143, B01D 53047

Patent

active

055429661

ABSTRACT:
The disclosed pressure swing adsorption processes can recover helium from source streams of less than about 10 percent by volume helium and concentrate the helium to a concentration of greater than about 98 percent by volume. Two stages of pressure swing adsorption are used in series. The source of the helium gas will be natural gas wells. The source gas will contain hydrocarbons but in most instances the primary gas other than helium will be nitrogen. Each stage of pressure swing adsorption will contain a plurality of adsorbent beds, and preferably about four. In each stage the adsorbent beds will be cycled through multiple phases. In the first stage the adsorbent beds will sequentially undergo the phases of adsorption, recycle, depressurization, evacuation, helium pressurization and recycle feed pressurization. The product gas from the first stage is flowed to the second stage and in the second stage sequentially will undergo the phases of adsorption, depressurization, evacuation, purge, and helium pressurization. The offgas from evacuation and purge in the second stage is flowed to input to the first stage. The processes using an adsorbent that adsorbs the gases other than helium produces a product stream in a high volume with a helium content of more than 98 percent by volume.

REFERENCES:
patent: 3636679 (1972-01-01), Batta
patent: 3683589 (1972-08-01), Seitz et al.
patent: 3797201 (1974-03-01), Tamura
patent: 3838553 (1974-10-01), Doherty
patent: 4077780 (1978-03-01), Doshi
patent: 4171207 (1979-10-01), Sircar
patent: 4444572 (1984-04-01), Avon et al.
patent: 4529412 (1985-07-01), Hayashi et al.
patent: 4539020 (1985-09-01), Sakuraya et al.
patent: 4581044 (1986-04-01), Uno et al.
patent: 4661125 (1987-04-01), Haruna et al.
patent: 4705541 (1987-11-01), Sircar et al.
patent: 4711645 (1987-12-01), Kumar
patent: 4732577 (1988-03-01), Koizumi et al.
patent: 4770676 (1988-09-01), Sircar et al.
patent: 4790858 (1988-12-01), Sircar
patent: 4813977 (1989-03-01), Kumar et al.
patent: 4813980 (1989-03-01), Sircar
patent: 4869894 (1989-09-01), Wang et al.
patent: 4892565 (1990-01-01), Kumar et al.
patent: 4913709 (1990-04-01), Kumar
patent: 4914218 (1990-04-01), Kumar et al.
patent: 4915711 (1990-04-01), Kumar
patent: 5013334 (1991-05-01), Maurer
patent: 5080694 (1992-03-01), Knoblauch et al.
patent: 5089048 (1992-02-01), Knoblauch et al.
patent: 5089565 (1990-01-01), Knoblauch et al.
patent: 5112590 (1992-05-01), Krishnamurthy et al.
patent: 5171333 (1992-12-01), Mauren
patent: 5174796 (1992-12-01), Davis et al.
patent: 5224507 (1993-07-01), Mehra
patent: 5234472 (1993-08-01), Krishnamurthy et al.
patent: 5382280 (1995-01-01), Choe et al.
C. Tannehill et al; Nitrogen Removal Costs Vary by Concentration; American Oil & Gas Reporter; May 1994.
R. J. Buras et al; Nitrogen Rejection and Pressure Swing Adsorption; Principles, Design, and Remote Control using an Expert System; Univ. of Oklahoma Conference-Feb. 28, 1994.
Methane/Nitrogen Gas Separation over the Zeolite Clinoptolite by the Selective Adsorption of Nitrogen Industrial Gas Separations, 1983 Am.Chem Society Frankiewicz et al.
A Study of Heatless Adsorption on the System CO.sub.2 in the He(I) Chem Eng. Science 1972, vol. 27 pp. 1449-1458 Schendalman et al.
Study of Heatless Adsorption in the Model System CO.sub.2 in He(II) Aiche Symposium Series No. 134, vol. 69 1973; Mitchell et al.
Recovery and Purification of Light Gases by PSA Cheng et al. ACS Symposium Series #223, Industrial Gas Separations, 1983.
The Optimal Control of a Periodic Adsorber Aiche Journal, vol. 18, No. 6 Nov. 1972; Kowler et al.
Separation of Nitrogen and Methane via Peniodic Adsorption Aiche Journal, vol. 17, #2, Mar. 1971; Turnock et al.
Separation of Helium-Methane Mixtures by PSA Aiche Journal, vol. 31, #1 Jan. 1985; Cheng et al.
Kinetic Separation by Pressure Swing Adsorption; Method & Model Aiche Jounal, vol. 36, No. 8, Aug. 1990; Ackley et al.
Separation of Nitrogen From Helium Using PSA; Bind et al Advanced Cryobenic Engineering, No. 19 pp. 463-473 1973.
A New Composite Sorbent for Methane-Nitrogen Separated by Adsorption; Separation Science and Technology, No. 257 (7 & 8) 845-868, 1990; Baksh et al.

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