Process for removing nitrogen oxides and carbon monoxide simultaneously.

摘要

A process for removing NOx and CO simultaneously is characterized in that an exhaust gas comprising NOx, CO and O2 is contacted with a catalyst in the presence of steam and ammonia to reduce NOx into harmless N2 and also to react CO with H2O to convert them into CO2 and H2 over the same catalyst. The catalyst comprises titanium oxide, oxide of at least one metal selected from the group consisting of molybdenum, tungsten, vanadium, cerium, nickel, cobalt and manganese, and at least one metal selected from the group consisting of platinum, palladium, rhodium and ruthenium.