Effect of Acid–Base Characteristics of In2O3-Al2O3 (ZrO2) Compositions on Their Catalytic Properties in the Oxidative Dehydrogenation of Propane to Propylene with CO2

Abstract

The effect of the nature of the support and the method of preparation of indium–aluminum(zirconium) oxide compositions on their acid–base characteristics, which determine the catalytic activity in oxidative dehydrogenation of propane with participation of CO2, was established. The highest selectivity for propylene (51%) is achieved over the In2O3–Al2O3 catalyst, which is due to the presence on its surface of stronger Lewis acid sites for activation of C3H8 and to a higher concentration of base sites for activation of CO2.