Patent ID: 8575054
Filing Date: 2013-11-05
Classification: B01D,B01J

Abstract:
1. A catalyst composition comprising (a1) a copper oxide represented by the compositional formula CuO x , where 0.45≦×≦1.1, wherein the copper oxide is CuO or a mixture of CuO and Cu 2 O(a2) a zeolite, and (a3) inorganic oxide particles selected from the group consisting of silica and titania having, carried thereon, one or more precious metals selected from the group consisting of Pt, Pd, Ru, Rh, Ir, and an alloy thereof, wherein a weight of the copper oxide relative to a sum of a weight of the copper oxide and a weight of the zeolite is in a range of 0.1 wt. % to 40 wt. %, wherein the zeolite is selected from the group consisting of mordenite, MFI-type, and β-type zeolites, and a SiO wherein the catalyst composition converts about 80% or more of the nitrogen in organic nitrogen compounds, ammonia, or a combination thereof in an exhaust gas to N