Abstract

The activity of γ−Al2O3-supported CuxMn3-xO4 catalysts towards the reduction of NO with CO has been investigated at temperatures of 150–500°C. It was established that the most active sample is Cu1.01Mn1.99O4/γ−Al2O3,i.e. the sample where the CuMn2O4 spinel is formed. In the presence of oxygen and the reducing agents CO and HC (a propane-butane mixture) oxygen has no blocking effect on the NO+CO reaction. Under oxidative conditions the reactions NO+CO and O2+CO are competitive.

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