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Steam Reforming of Ethanol over Manganese and Iron Oxides for Hydrogen Production

MnO, Mn2O3, Fe2O3 and Fe3O4 are catalytically active for the steam reforming of ethanol. The main reaction products were acetaldehyde, acetone, CO2 and H2 in the temperature range of 300–550°C. At low temperatures, high selectivity for acetone (up to 75%) was observed for MnO. Based on the study results, the relation between product selectivity of the oxide catalysts and their acid–base/redox properties balance is suggested. The selectivity for hydrogen was about 80% for Fe2O3 at 550°C with 100% ethanol conversion.