Exhaust gas purifying catalyst and an exhaust gas purifying...

Details Exhaust gas purifying catalyst and an exhaust gas purifying... Exhaust gas purifying catalyst and an exhaust gas purifying...

B - Operations, Transporting

01

J

B01J 23/08 (2006.01) B01D 53/94 (2006.01)

Patent

CA 2060229

24 ABSTRACT A catalyst for purifying an exhaust gas comprises at east gallium as a main catalyst and a fire resistant oxide except for zeolite) as a support. A method of reducing and eliminating a nitrogen oxide in an exhaust gas in the presence of a hydrocarbon having a ratio of an overall THC concen- ration/NOx concentration of 0.5 - 50 at a reaction tem- perature of 200 - 800°C in an oxidative atmosphere.

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