Process for removing oxygen from a hydrogen stream
AssigneeUop LLC
InventorsBradley P. Russell, David W. Greer, Mark M. Davis, Shain Doong, Jince Sebastian
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Abstract
A pressure swing adsorption process is provided to remove oxygen from a hydrogen stream through the use of a copper material in combination with layers of adsorbent to remove water, C2 and C3 hydrocarbons, as well as other impurities. The feed gas comprises more than 70 mol % hydrogen, at least 1 mol % methane and more than 10 ppmv oxygen. The purified product hydrogen stream comprises greater than 99 mol % hydrogen, with less than 1 ppmv oxygen.
Claims20
A process for producing a high-purity hydrogen gas stream from a feed stream comprising hydrogen, hydrocarbons, and oxygen, said process comprising sending said feed stream through an adsorbent bed comprising a copper material at a pressure greater than about 4 bar(g) to remove said oxygen from said feed stream, and then purging said adsorbent bed in a counter-current direction with a hydrogen-rich gas at a pressure less than about 1 bar(g).
Dependencies are inferred from the claim text.