Process for producing high concentration oxygen by a...

C - Chemistry – Metallurgy – 01 – B

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C01B 13/02 (2006.01) B01D 53/04 (2006.01) B01D 53/047 (2006.01)

Patent

CA 1271710

ABSTRACT OF THE DISCLOSURE In production of high concentration oxygen by a pressure swing-adsorption method using air as a raw material, air is introduced into a first step adsorption apparatus packed with a zeolite molecular sieve and is subjected to a pressure-swing-adsorption operation to obtain a non-adsorbed gas comprising oxygen as the major component, argon and nitrogen; the non-adsorbed gas is introduced into a second step adsorption apparatus packed with a carbon molecular sieve and is subjected to a pressure swing-adsorption operation to separate argon and nitrogen from oxygen as a non-adsorbed gas; and the desorbed oxygen is obtained as high concentration oxygen.

481913

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