Patent ID: 7824628

Claim:
A purification system for decontaminating contaminated fluid ammonia comprising: an adsorbent for producing decontaminated fluid ammonia, the adsorbent reducing the level of contaminants in said fluid ammonia to not more than about 100 ppb when contacted therewith by absorption of said contaminants from said fluid ammonia onto said adsorbent, wherein said adsorbent comprises at least one reduced metal, at least one reduced metal oxide, or a combination thereof, and said contaminants comprise oxygen; and a self-regeneration means for producing a gas mixture comprising hydrogen gas by decomposition of a portion of the decontaminated fluid ammonia and for delivering the gas mixture comprising hydrogen gas produced by decomposition of the portion of the decontaminated fluid ammonia to the adsorbent for periodic in situ chemical self-regeneration of the contaminated adsorbent by reduction of at least a portion of the contaminated adsorbent and removal of the contaminants therefrom by contact of said contaminated adsorbent with the gas mixture comprising hydrogen gas produced by decomposition of a portion of the purified ammonia product, wherein the gas mixture comprising hydrogen gas has the purity of less than 100 ppb.