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Method of removing sulfur dioxide from a flue gas stream

  • US 20070041885A1
  • Filed: 08/18/2005
  • Published: 02/22/2007
  • Est. Priority Date: 08/18/2005
  • Status: Active Grant
First Claim
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1. A method of removing SO2 from a flue gas stream comprising SO2, comprising:

  • providing a source of trona;

    injecting the trona into the flue gas stream, wherein the temperature of the flue gas is between about 600°

    F. and about 900°

    F.; and

    maintaining the trona in contact with the flue gas for a time sufficient to react a portion of the trona with a portion of the SO2 to reduce the concentration of the SO2 in the flue gas stream.

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