Adsorptive separation using diluted adsorptive phase

Details Adsorptive separation using diluted adsorptive phase Adsorptive separation using diluted adsorptive phase

1992-09-23

1993-11-02

Spitzer, Robert

Gas separation: processes

Solid sorption

Including reduction of pressure

95130, 95902, B01D 5304

Patent

active

052580601

ABSTRACT:
The present invention is directed to adsorptive separation of nitrogen with active adsorbent phases with high N.sub.2 capacity and high heats of adsorption when diluted with inert material at levels ranging from 5% to 80%. The presence of diluent reduces the temperature swings in the adsorbent bed, which increases the utilizable effective N.sub.2 working capacity and decreases the relative amount of O.sub.2 left unrecovered on the active adsorbent phase. The net result is equal or better process performance allowing utilization of a lower amount of active adsorbent phase. Use of a diluent having a higher heat capacity than that of the active adsorbent phase increases these benefits, but dilution effects are beneficial even for diluents with heat capacities equal to or lower than that of the active adsorbent phase.

REFERENCES:
patent: 3140931 (1964-07-01), McRobbie
patent: 3140932 (1964-07-01), McKee
patent: 3140933 (1964-07-01), McKee
patent: 3181231 (1965-05-01), Breck
patent: 3237377 (1966-03-01), Skarstrom
patent: 3313091 (1967-04-01), Berlis
patent: 3356450 (1967-12-01), Heinze
patent: 4026680 (1977-05-01), Collins
patent: 4481018 (1984-11-01), Coe et al.
patent: 4499208 (1985-02-01), Fuderer
patent: 4544378 (1985-10-01), Coe et al.
patent: 4557736 (1985-12-01), Sircar et al.
patent: 4603040 (1986-07-01), Kuznicki et al.
patent: 4762537 (1988-08-01), Fleming et al.
patent: 4818508 (1989-04-01), Flank et al.
patent: 4859217 (1989-08-01), Chao
patent: 4925460 (1990-05-01), Coe et al.
patent: 4950312 (1990-08-01), Puppe et al.
patent: 4971605 (1990-11-01), Tarman
patent: 5152813 (1992-10-01), Coe et al.
patent: 5174979 (1992-12-01), Chao et al.
Breck, D. W.; "Zeolite Molecular Sieves"; 1974; p. 737.
Baksh, et al.; "Lithium Type X-Zeolite as a Superior Sorbest for Air Separation" Sep. Sci & Tech., 27(3), 277-294, 1992.
Coe, et al.; "Molecularly Engineered, High-Perf. Adsorbent Self-Bound Low-Silica X Zeolite" American Chemical Society, 1988, pp. 478-491.
Yang and Cen; "Improved Pressure Swing Adsorption Process for Gas Separation: . . . "; Ind. Eng. Chem Process Des. Dev.; 1986; pp. 54-59; vol. 25.

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