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The transition metal oxide, such as iron oxide and Fe2O3/Al2O3 is cheap and industrialized that are widely used to catalyze the reaction of chlorine and oxygen with hydrogen in mixture gas to remove hydrogen from tail chlorine at low temperature. The reaction gas was prepared by the same composition with industrial tail chlorine, namely Cl2 (65% ~ 80%), O2 (8% ~ 10%), N2 (6% ~16%) and H2 (1.5% ~ 4%). In this experiment, the fixed bed reactor and iron oxide or Fe2O3/Al2O3 were used as the reaction device and catalysts, respectively. The optimum conversion rate of hydrogen was 84.11% when the reaction temperature was at 70 °C with 3%wt. Fe2O3/ Al2O3 and the calcination temperature was 500 °C. The results showed that the catalytic performance of Fe2O3/Al2O3 is superior to Fe2O3. The selectivity of the reaction of hydrogen and chloride was higher than that of hydrogen and oxygen. We also characterized the catalysts with XRD, XPS, SEM and N2 adsorption-desorption and the results showed that the iron oxide was dispersive uniformly on the support surface.

IRON OXIDE AND Fe2O3/Al2O3 USED TO CATALYZE REMOVING HYDROGEN FROM TAIL CHLORINE AT LOW TEMPERATURE