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Purification of gases

  • US 6,511,640 B1
  • Filed: 06/29/2000
  • Issued: 01/28/2003
  • Est. Priority Date: 06/29/2000
  • Status: Expired due to Fees
First Claim
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1. A temperature swing adsorption process for producing a gaseous product substantially purified from impurities comprisinga) removing water vapor from a gaseous feedstream containing impurities;

  • b) contacting said gaseous feedstream with an oxidation catalyst to convert carbon monoxide to carbon dioxide;

    c) removing carbon dioxide from said gaseous feedstream of steps (a) and (b);

    d) contacting said gaseous feedstream of step (c) with an oxidation catalyst to convert hydrogen to water vapor; and

    e) removing water vapor from said gaseous feedstream of step (d), thereby obtaining said substantially purified gaseous product.

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