Gas separation method using adsorbent

Details Gas separation method using adsorbent Gas separation method using adsorbent

2006-06-09

2009-10-20

Hopkins, Robert A (Department: 1797)

Gas separation: processes

Solid sorption

Including reduction of pressure

C095S106000, C095S127000, C095S148000

Reexamination Certificate

active

07604683

ABSTRACT:
A gas separation method for separating a specific component gas from a mixed gas using an adsorbent comprises (1) a contact step of bringing a mixed gas into a vessel to contact at a first pressure the mixed gas with an adsorbent whose adsorption property with respect to a specific component gas exhibits hysteresis, (2) a decompression step of decompressing the mixed gas in the vessel to a second pressure which is lower than the first pressure and which is within the hysteresis range, and (3) a desorption step of causing adsorbed matter to detach by placing the adsorbent at a third pressure which is lower than the second pressure and which is outside of the hysteresis range and/or by heating the adsorbent.

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