CATALYST FOR PURIFICATION OF EXHAUST GAS

摘要

PURPOSE: To obtain a catalyst having high NOx removing performance as well as satisfactory removing performance to CO and hydrocarbons in a lean atmosphere in the temp. region of exhaust gas under ordinary service conditions of a passenger car. CONSTITUTION: This catalyst based on activated alumina which removes NOx , CO and hydrocarbons is made of activated alumina obtd. by carrying 0.001-0.02wt.% palladium on an alumina carrier.