초록 ▼

A catalyst composition and a process are presented for the reduction of nitrogen oxides in flue gases to nitrogen. The catalyst comprises titania, mordenite and a metal component. The preferred metal component comprises vanadium oxide and tungsten oxide. At least 15 wt. % mordenite is present, with

A catalyst composition and a process are presented for the reduction of nitrogen oxides in flue gases to nitrogen. The catalyst comprises titania, mordenite and a metal component. The preferred metal component comprises vanadium oxide and tungsten oxide. At least 15 wt. % mordenite is present, with high silica H-mordenite being preferred.

대표청구항 ▼

A catalytic composite useful in processes for the reduction of nitrogen oxides in gas streams which comprises an admixture of at least 25 wt.% titania, at least 25 wt.% mordenite and at least 0.5 wt.% of a metal component comprising an oxide and/or an elemental form of a metal chosen from the group

A catalytic composite useful in processes for the reduction of nitrogen oxides in gas streams which comprises an admixture of at least 25 wt.% titania, at least 25 wt.% mordenite and at least 0.5 wt.% of a metal component comprising an oxide and/or an elemental form of a metal chosen from the group consisting of molybdenum, vanadium, tungsten, and chromium. The catalyst of claim 7 further characterized in that the catalyst comprises over 1.5 wt.% of the metal component. The catalyst of claim 8 further characterized in that the catalyst comprises at least 10 wt.% alumina.