Catalytic reduction of nox using methane in the presence of...

Details Catalytic reduction of nox using methane in the presence of... Catalytic reduction of nox using methane in the presence of...

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/20 (2006.01) B01D 53/86 (2006.01) B01D 53/94 (2006.01) F01N 13/02 (2010.01) B01D 53/36 (1990.01) F01N 7/02 (2006.01)

Patent

CA 2074687

PATENT 211PUS04524 ABSTRACT The invention describes a catalytic process for destroying NOx from oxygen-containing combustion products where-in methane serves as a reductant. The process comprises contacting the NOx-containing combustion products with a desired amount of methane and oxygen in the presence of a metal-exchanged crystalline zeolite having a silicon to aluminum ratio of greater than or equal to about 2.5 under conditions sufficient to effect conversion to gaseous nitrogen, water and carbon oxides. The zeolites are exchanged with a cation selected from the group consisting of cobalt, nickel, iron, chromium, rhodium and manganese.

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