Composition for desorbing sulfur and nitrogen oxide in fume

Composition for desorbing sulfur and nitrogen oxide in fume

  • CN 101,721,911 A
  • Filed: 10/31/2008
  • Published: 06/09/2010
  • Est. Priority Date: 10/31/2008
  • Status: Active Application
First Claim
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1. one kind can be used for removing sulphur in the flue gas, the composition of nitrogen oxide, said composition contains at least a IB that is selected from, IIB, IIIB, IVB, VB, VIB, VIIB, the oxide of the transition metal of VIII family, at least a IA that is selected from, the metal oxide of IIA family, at least a heat-resistant inorganic oxide matrix, with described composition is benchmark, be selected from IB, IIB, IIIB, IVB, VB, VIB, VIIB, the content of the transition metal oxide of VIII family is 0.5 weight %-35 weight %, be selected from I A, the content of the metal oxide of IIA family is 0.5 weight %-35 weight %, the content of heat-resistant inorganic oxide matrix is 50 weight %-99 weight %, and described catalyst is prepared by the method that may further comprise the steps:

  • (1) in the precursor of heat-resistant inorganic oxide matrix and/or heat-resistant inorganic oxide matrix, introduces at least a oxide that is selected from the transition metal of IB, IIB, IIIB, IVB, VB, VIB, VIIB, VIII family, at least a metal oxide that is selected from IA, IIA family;

    (2) product 2 hours-12 hours of calcination steps (1) under greater than 600 ℃

    to 1100 ℃

    conditions obtains described composition.

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