CATALYST SYSTEMS WITH MODIFIED CONTACTING SURFACE FOR ENHANCED AMMONIA ADSORTION FOR SELECTIVE CATALYTIC REDUCTION

摘要

An ammoniacal catalyst system for selective catalytic reduction is provided to perform a dentitrification process in atmospheric condition processing with excellent degradability of hydrocarbon and a conversion rate of denitrification reaction. An ammoniacal catalyst system for selective catalytic reduction includes a catalyst foil layer containing vanadia and zeolite formed on the surface of honeycomb structure or monolithe structure. The catalyst foil layer further includes a silica compound. The catalyst foil layer is formed by suing slurry with solid content 0.1 ~ 10 weight%. The content of the vanadia is 0.1 ~ 10 weight% about the zeolite. The structure is made of cordierite or titania.