WANG Guang-jian, BING Lian-cheng, GUO Na-na, YANG Zhi-jian, ZHANG Jian-kang. Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1252-1257.
Citation: WANG Guang-jian, BING Lian-cheng, GUO Na-na, YANG Zhi-jian, ZHANG Jian-kang. Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method[J]. Journal of Fuel Chemistry and Technology, 2012, 40(10): 1252-1257.

Preparation of activated carbon-supported Co-Mo bimetallic catalyst by impregnation-precipitation method

  • Supported Co-Mo catalyst was prepared by impregnation-precipitation method using modified activated carbon as carrier and urea as precipitant.Catalytic activity of catalyst was studied by using the reduction of SO2 by CO.Under optimum reaction conditions (sulfidation temperature 500℃; GHSV=7 000 mL·g-1·h-1;CO/SO2 mol ratio =2:1; reaction temperature 450℃), the best catalytic activity and selectivity were obtained for Co-Mo catalyst with calcination temperature was 500℃ and Co/Mo mol ratio =0.45. Catalyst samples were characterized by X-ray powder diffraction (XRD) in order to relate the phase composition to the activation behavior and catalytic performance.The active phases of catalyst were detected as CoS2 and MoS2,and the formation of them were greatly dependent on the sulfidation temperature.And the catalytic activity of cobalt molybdenum catalyst decreased less than 1% after the reaction lasted for 24 h.
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