CATALYST FOR SELECTIVE CATALYTIC REDUCTION OF NOx IN GAS WASTE, USE, METHODS OF PRODUCTION OF A CATALYST, AND TREATMENT OF AN UNCOATED CATALYST

摘要

catalyst for selective catalytic reduction of nox in gaseous effluents, use, methods of producing a catalyst, and treatment of an uncoated catalyst. The present invention relates to a catalyst for selective catalytic reduction of NOx in alkaline metal-containing gaseous effluents using ammonia as the reducing agent, the catalyst comprising a surface with catalytically active sites, wherein the surface is at least partially coated with a coating comprising at least one metal oxide. In another aspect the present invention relates to a method of treating a catalyst to impart improved resistance to alkali poisoning.