Selective adsorption process

Details Selective adsorption process Selective adsorption process

B - Operations, Transporting

01

D

183/32

B01D 53/04 (2006.01) B01D 53/047 (2006.01) B01J 20/18 (2006.01)

Patent

CA 1270208

ABSTRACT OF THE DISCLOSURE Nitrogen and oxygen are separated from air by contacting the air with a bed of MFI type zeolite in an adsorption stage to selectively adsorb the nitrogen and produce an effluent enriched in oxygen and thereafter recover a gas enriched in nitrogen in a desorption stage. The process is preferably a pressure swing process, desorption being effected by pressure reduction. Preferably the MFI zeolite is employed in the sodium or lithium form.

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