Thesis (M.Eng)--Chulalongkorn University, 1998

Oxidation property of the Co-Mg-O catalyst was investigated by using the oxidation reaction of propane, 1-propanol, propene, and CO, as test reactions. It was found that the oxidation property of Co-Mg-O catalyst depended upon the reactants. For the 1-propanol oxidation at low reaction temperature, Co-Mg-O catalyst behaved as a selective catalyst, while at high reaction temperature it played role as a combustion catalyst. For the oxidation reaction of propene and CO, 4Co-Mg-O catalyst acted as a combustion catalyst. For propane oxidation, it was found that the cobalt composition in Co-Mg-O catalyst affected the catalytic activity and selectivity. 8Co-Mg-O catalyst was the suitable catalyst for propane oxidation because it was active and selective for olefin production. It provided the maximum olefin selectivity ca. 40% and the maximum olefin yield 30% at 500 ํC. The catalytic activity and selectivity of Co-Mg-O catalysts with varying cobalt loading in the propane oxidation were explained using Temperature Programmed Reduction (TPR) technique