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Ammonia SCR catalyst and method of using the catalyst

  • US 7,527,776 B2
  • Filed: 01/09/2007
  • Issued: 05/05/2009
  • Est. Priority Date: 01/09/2007
  • Status: Active Grant
First Claim
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1. A catalyst for selective catalytic reduction of nitrogen oxides with ammonia, the catalyst comprising:

  • a first component comprising at least one selected from the group consisting of copper, chromium, cobalt, nickel, manganese, iron, niobium, and mixtures thereof;

    a second component comprising at least one selected from the group consisting of cerium, a lanthanide, a mixture of lanthanides, and mixtures thereof;

    at least one zeolite andstrontium.

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