Pressure swing adsorption process

Details Pressure swing adsorption process Pressure swing adsorption process

B - Operations, Transporting

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

Patent

CA 1325182

- 33 - IMPROVED PRESSURE SWING ADSORPTION PROCESS ABSTRACT OF THE DISCLOSURE A less readily adsorbable component is separated from a feed gas mixture in a vacuum pressure swing adsorption process that includes repressurization from a subatmospheric desorption pressure to a higher adsorption pressure by pressure equalization and feed air repressurization and depressurization by such pressure equalization means and evacuation to the subatmospheric desorption pressure. Partial rather than full pressure equalizations are employed. A high purity product, e.g. oxygen upon air separation, is conveniently and economically obtained thereby.

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