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Preparation of adsorbents from organic fertilizer and mineral oil and their application for removal of acidic gases from sulfur containing wet gas streams

  • US 6,962,616 B1
  • Filed: 08/08/2003
  • Issued: 11/08/2005
  • Est. Priority Date: 08/08/2003
  • Status: Active Grant
First Claim
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1. A process for removing one or more acidic gas or gases from wet gas streams comprising:

  • (a) forming an adsorbent by thermally drying dewatered sewage sludge to form granulated organic fertilizer;

    (b) treating the fertilizer with mineral oil;

    (c) pyrolyzing the treated fertilizer at a pyrolysis temperature between about 600°

    C. and about 1000°

    C.;

    (d) contacting the adsorbent with a wet gas stream; and

    (e) allowing the adsorbent to adsorb the acidic gas or gases.

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