Patent ID: 6059858
Filing Date: 2000-05-09
Classification: B01D,B01J,C01B,Y02C,Y02P

Abstract:
A process for separating oxygen from a gas mixture at a temperature in the range of about 300 to about 1400.degree. C. comprising (a) passing said gas mixture through at least one adsorption zone containing an oxygen-selective mixed conductor at an absolute pressure in the range of about 1 to about 50 bara, thereby preferentially adsorbing oxygen from said gas mixture, and (b) desorbing oxygen from said oxygen-selective mixed conductor by: (1) reducing the pressure in said at least one adsorption zone to about 10.sup.-3 to about 5 bara; (2) purging said at least one adsorption zone with a substantially oxygen-free gas; or (3) combinations of (1) and (2).