Separation of gas mixtures

Details Separation of gas mixtures Separation of gas mixtures

1989-05-08

1990-09-25

Spitzer, Robert

Gas separation

Means within gas stream for conducting concentrate to collector

55 31, 55 33, 55 62, 55 68, 55 74, 55 75, 55179, 55387, 55389, B01D 5304

Patent

active

049590839

ABSTRACT:
A method and apparatus for the separation of air by pressure swing adsorption utilizing two beds of adsorbent material which are operated out of phase, thereby providing a more or less continuous flow of product oxygen with reduced argon content. A first adsorbent bed comprises a carbon molecular sieve which adsorbs oxygen more rapidly then nitrogen. The adsorbed oxygen is desorbed from the first bed and flows to a second bed, comprising a zeolite molecular sieve that adsorbs nitrogen preferentially to oxygen, thereby producing product oxygen as the non-adsorbed gas. Alternatively, the second bed comprises a carbon molecular sieve, and the adsorbed oxygen is desorbed as the oxygen product gas.

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patent: 4566881 (1986-01-01), Richter et al.
patent: 4661125 (1987-04-01), Haruna et al.
patent: 4744803 (1988-05-01), Knaebel

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