Patent ID: 7727923
Filing Date: 2010-06-01
Classification: B01D,B01J

Abstract:
1. A catalyst composition for purifying an exhaust gas containing an organic compound and a silicon compound, the catalyst composition comprising: alumina particles having a precious metal carried thereon, and zeolite particles having a precious metal carried thereon, wherein the amount of precious metal carried on the alumina particles is in the range of 0.5 wt. % to 10 wt. % of the alumina particles, and the amount of precious metal carried on the zeolite particles is in the range of 0.5 wt. % to 10 wt. % of the zeolite particles, wherein: a proportion of a weight of the zeolite particles relative to a sum of a weight of the alumina particles and the weight of the zeolite particles is in a range of 1 wt. % to 70 wt. %, and the zeolite particles are capable of absorbing 0.6 to 1.5 mmol NH