Transition metal/zeolite scr catalysts

Transition metal/zeolite scr catalysts

  • CN 102,974,390 A
  • Filed: 04/24/2008
  • Published: 03/20/2013
  • Est. Priority Date: 04/26/2007
  • Status: Active Application
First Claim
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1. catalyst that makes conversion of nitrogen oxides in the gas become nitrogen, described conversion is to contact by the described catalyst that makes nitrogen oxide and nitrogenous reducing agent, contains at least a transition metal to carry out, its mesolite is the pore zeolite that contains 8 tetrahedron atom maximum loop sizes, wherein said at least a transition metal is selected from Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt, and the described pore zeolite that contains 8 tetrahedron atom maximum loop sizes is selected from the framework type numbering of CHA, LEV, ERI and DDR.

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