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The effect of vanadium addition to CU/γ-Al2O3 catalyst used in the hydrogenation of CO2 to produce methanol was studied. It was found that the catalytic performance of the Cu-based catalyst improved after V addition. The influence of reaction temperature, space velocity and the molar ratio of H2 to CO2 on the performance of 12%Cu-6%V/γ-Al2O3 catalyst were also studied. The results indicated that the best conditions for reaction were as follows: 240℃, 3600 h-1 and a molar ratio of H2 to CO2 of 3:1. The results of XRD and TPR characterization demonstrated that the addition of V enhanced the dispersion of the supported CuO species, which resulted in the enhanced catalytic performance of CU-V/γ-Al2O3 binary catalyst.
The effect of vanadium addition to CU / γ-Al2O3 catalyst used in the hydrogenation of CO2 to produce methanol was studied. It was found that the catalytic performance of the Cu-based catalyst improved after V addition. The influence of reaction temperature, space velocity and the molar ratio of H2 to CO2 on the performance of 12% Cu-6% V / γ-Al2O3 catalyst were also studied. The results indicated that the best conditions for reaction were as follows: 240 ° C, 3600 h-1 and a molar ratio of H2 to CO2 of 3: 1. The results of XRD and TPR characterization demonstrated that the addition of V enhanced dispersion of the supported CuO species, which resulted in the enhanced catalytic performance of CU-V / γ-Al2O3 binary catalyst .