Patent ID: 7166149

Claim:
A process of producing a purified compressed gas comprising: a) providing a gas feed; b) providing at least one rotary adsorber having a multiplicity of passages through which a compressed gas can flow for adsorbing impurities therefrom, the rotary adsorber capable of adsorption of impurities from said compressed gases and of regeneration on a continuous basis as the wheel rotates; c) after said gas feed has been compressed to produce a compressed gas feed, sending said compressed gas feed through a regeneration sector of said rotary adsorber wherein said compressed gas feed removes impurities from said regeneration sector of said rotary adsorber and produces a contaminated stream of compressed gas containing said impurities; d) then cooling said contaminated stream of compressed gas and condensing condensable impurities from said contaminated stream of compressed gas within a condensing means removing a quantity of condensed impurities from said condensing means and thereby producing a cooled stream of compressed gas; and e) then passing said cooled stream of compressed gas to an adsorption sector of said rotary adsorber wherein a further quantity of impurities are removed from said compressed gas to produce a purified compressed gas product; wherein a minor portion of said cooled purified compressed gas product, having been cooled to a desired temperature, is sent to a cooling sector of said rotary adsorber to cool said cooling sector.