Psa employing high purity purging

Details Psa employing high purity purging Psa employing high purity purging

B - Operations, Transporting

01

D

B01D 53/04 (2006.01) B01D 53/047 (2006.01)

Patent

CA 2052174

PATENT Dkt. 88A289 ABSTRACT OF THE DISCLOSURE Described is an improved pressure-swing adsorption process and apparatus which enable more thorough regeneration and, thus, a higher yield of one or more selected gases and a higher productivity of the adsorbent material. The pressure-swing adsorption process and apparatus for obtaining a selected gas are of the type wherein a PSA product gas is obtained by the steps of pressurizing, producing, purging and venting a vessel that contains an adsorbent for a gas other than the selected gas. The improvement is a step of purging the adsorbent with a purge gas that has a higher concentration of the selected gas than the PSA product gas.

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