Integrated membrane filter

  • US 6,746,513 B2
  • Filed: 02/08/2003
  • Issued: 06/08/2004
  • Est. Priority Date: 02/19/2002
  • Status: Active Grant
First Claim
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1. A method of using a membrane to separate components of a gas mixture having gaseous contaminants which can affect the separation performance of the membrane, the method comprising:

  • providing a module comprising a shell;

    a selectively gas permeable membrane within the shell; and

    a filter medium operative to selectively remove the contaminants from the gas mixture, the filter medium being positioned between the shell and the membrane;

    introducing the gas mixture into the shell;

    conducting the gas mixture through the filter medium, thereby producing a filtered mixture depleted in contaminants relative to the gas mixture; and

    contacting the membrane with the filtered mixture, thereby forming a permeate gas enriched in more preferentially permeable components of the gas mixture.

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