Catalyst for oxidizing carbon monoxide and hydrocarbons - comprising aluminates of copper, manganese, nickel, and opt. cerium on alumina

摘要

CO and hydrocarbons, e.g. combustion engine exhaust gases, are oxidised at 150-800 (200-700 esp. 300-600)degrees C to CO2 + H2O, in the presence of a high strength catalyst on a support composed of a mixt. of aluminates of Cu, Mn and Ni deposited on a pure Al2O3 support, there being 10-45 (20-35) wt.% aluminates. Cu:Mn:Ni wt. ratio is opt. (2-4):(1-2):(0.1-1). There is opt. 0.5-10 (1-7) wt.% Ce, deposited on the support as its oxide. Initiation temp. is low, and the reaction is unaffected by O2 concn. in the gas mixt.