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Microfibrous entrapment of small reactive particulates and fibers for high contacting efficiency removal of contaminants from gaseous or liquid streams

  • US 7,501,012 B2
  • Filed: 08/26/2004
  • Issued: 03/10/2009
  • Est. Priority Date: 08/26/2003
  • Status: Active Grant
First Claim
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1. A filtration system comprising:

  • a) a plurality of layers, each layer being reactive and including a matrix of sinter-bonded microfibers;

    b) support, adsorbent or reactive particulates and/or fibers entrapped within said matrix;

    c) a pre-selected reactive material impregnated into said matrix and supported by said particulates and/or fibers;

    d) wherein thin sheets of the matrix with the supporting particulates, reactants, adsorbents and/or fibers and the pre-selected reactive materials impregnated therein are chemically functionalized and then stacked in a pre-defined sequence; and

    e) wherein the predefined sequence has an upstream packed bed of larger diameter reactive catalyst and sorbent particulates and a downstream polishing layer of smaller diameter microfibrous entrapped reactive catalyst and sorbent particulates; and

    f) wherein the filtration system removes contaminants from liquid and gaseous streams.

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