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Pressure swing adsorption system with indexed rotatable multi-port valves

  • US 7,854,793 B2
  • Filed: 05/22/2007
  • Issued: 12/21/2010
  • Est. Priority Date: 06/30/2006
  • Status: Active Grant
First Claim
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1. A pressure swing adsorption system comprising(a) two or more vessels, each vessel having a feed end, a product end, and adsorbent material adapted to adsorb one or more components from a multi-component feed gas mixture;

  • (b) piping adapted to introduce the feed gas mixture into the feed ends of the vessels, piping adapted to withdraw a product gas from the product ends of the vessels, piping adapted to place the product ends of any pair of vessels in flow communication, and piping adapted to withdraw a waste gas from the feed ends of the vessels;

    (c) a feed pipe adapted to supply the feed gas mixture to the system, a product pipe adapted to withdraw the product gas from the system, and a waste gas pipe adapted to withdraw the waste gas from the system; and

    (d) an indexed rotatable multi-port valve adapted to place the product end of each vessel in sequential flow communication with the product end of each of the other vessels.

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