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It was assumed that the homogeneous dehydrogenation of C2H6 occurred in the gas phase was independent of the presence of catalysts and this is applicable to the oxidative dehydrogenation of ethane with CO2 over CeO2 . On the basis of this assumption, a method was developed to analyze the contribution of C2H4 formation from heterogeneous catalysis. In this study, ceria was found to be active and selective for the oxidative dehydrogenation of ethane with CO2 and the selectivity to C2H4 was above 60% and the actual contribution for C2H4 formation from heterogeneous catalysis was about 55 %-75 % in the range of 953-993 K.
It was assumed that the homogeneous dehydrogenation of C2H6 occurred in the gas phase was independent of the presence of catalysts and this is applicable to the oxidative dehydrogenation of ethane with CO2 over CeO2. On the basis of this assumption, a method was developed to analyze the contribution of C2H4 formation from heterogeneous catalysis. In this study, ceria was found to be active and selective for the oxidative dehydrogenation of ethane with CO2 and the selectivity to C2H4 was above 60% and the actual contribution for C2H4 formation from heterogeneous catalysis was about 55 % -75% in the range of 953-993 K.