EXHAUST GAS-PURIFYING CATALYST AND PROCESS FOR PURIFYING EXHAUST GASES

摘要

An exhaust gas-purifying catalyst capable of carrying out the CO-oxidizing reaction and the reduction reaction of NOx with NH3 in the same reactor and with good efficiency, and a process for purifying exhaust gases using the catalyst are provided, which catalyst comprises Cu and/or Co supported by Zr oxide or Ti oxide mixed with a Cu-substituted type zeolite.