Patent ID: 6875409
Filing Date: 2005-04-05
Classification: B01D,B01J

Abstract:
1. A bi-functional catalyst useful for oxidation and removal of nitrogen oxides (NOx) contained in fuel combustion gases, the catalyst comprising: an adsorption function metal oxide component comprising at least one metal oxide selected from the group consisting of oxides of barium, cesium, lanthanum, strontium, and zirconium, an oxidation function metal oxide component comprising at least one metal oxide selected from the group consisting of chromium, cobalt, copper, iron, manganese, and platinum, said adsorption metal oxide component and said oxidation metal oxide component being combined together in close intimate contact so that said adsorption metal oxide component and said oxidation metal oxide component are chemically bonded closely together so as to form a metal oxide complex having a crystalline structure,