The use of base treated alumina in pressure swing adsorption

Details The use of base treated alumina in pressure swing adsorption The use of base treated alumina in pressure swing adsorption

B - Operations, Transporting

01

D

B01D 53/047 (2006.01) B01D 53/02 (2006.01) B01J 20/02 (2006.01) B01J 20/08 (2006.01)

Patent

CA 2186681

Pressure swing adsorption to remove CO2 from a gas stream is conducted using an improved alumina obtained by impregnating a starting alumina with a basic solution having a pH of at least 9, e.g. of a basic compound such as KHCO3, and drying at a temperature low enough to avoid decomposing the basic compound to a form which adsorbs CO2 such that the compound does not regenerate under reduced pressure purging.

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