Selective adsorption of CO.sub.2 on zeolites

Details Selective adsorption of CO.sub.2 on zeolites Selective adsorption of CO.sub.2 on zeolites

1987-11-05

1988-10-04

Hart, Charles

Gas separation

Means within gas stream for conducting concentrate to collector

55 68, 55 75, 502 79, B01D 5304

Patent

active

047753960

ABSTRACT:
Carbon dioxide is selectively adsorbed and separated from non-acidic gases such as nitrogen, hydrogen and methane using a pressure swing adsorption process in a fixed adsorption bed containing a faujasite type of zeolitic aluminosilicate containing at least 20 equivalent percent of at least one cation species selected from the group consisting of zinc, rare earth, hydrogen and ammonium and containing not more than 80 equivalent percent of alkali metal or alkaline earth metal cations.

REFERENCES:
patent: 3449070 (1969-06-01), McDaniel et al.
patent: 4481018 (1984-11-01), Coe et al.
patent: 4557736 (1985-12-01), Sircar et al.
patent: 4717398 (1988-01-01), Pearce
EPC Published Application No. 0173501 A2, Pearce et al, published 3-5-86.

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