Decomposition of Propane and Its Reactions with CO2 Over Alumina-Supported Pt Metals

Propane underwent dehydrogenation and cracking on alumina-supported Pt metals at 823-923 K. Propylene formed with highest selectivity (50-80%) on Pt/Al2O3. The deposition of carbonaceous species was observed on every sample, the hydrogenation of which occurred only above 700-750 K with a peak temperature of 900-950 K. The presence of CO2 basically altered the reaction pathway of propane, and the formation of CO and H2 came into prominence. The highest specific rates for the production of H2 and CO were measured for the Ru and Rh catalysts.