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助剂Mn对CuAl_2O_3催化剂一氧化碳加氢性能的影响 被引量:4

EFFECTS OF Mn ON Cu/Al_2O_3 CATALYSTS FOR HYDROGENATION OF CARBON MONOXIDE
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摘要 In this paper, the hydrogenation of carbon monoxide over Cu-MnO x/Al 2O 3 composite catalysts system prepared by impregnation method has been studied The effects of addition of MnO x on activity and DME selectivity for hydrogenation of Cu-MnO x/Al 2O 3 catalysts were investigated by a micro reactor-GC system The crystal structure and reduction property of the catalysts were also studied by means of XRD, TPR The results indicated that the addition of MnO x increased the activity and DME selectivity of CuO/Al 2O 3 catalyst for the hydrogenation of carbon monoxide, and the most active and selective for DME is the catalyst with a molar ratio of Cu/Mn=1∶1 The addition of MnO x cause the TPR peak of CuO/Al 2O 3 to move to a high temperature; at the same time, the hydrogen spillover on Cu made MnO x reduction easier The results of XRD indicated that the addition of MnO x increased the dispersion of CuO on γ-Al 2O In this paper, the hydrogenation of carbon monoxide over Cu-MnO x/Al 2O 3 composite catalysts system prepared by impregnation method has been studied The effects of addition of MnO x on activity and DME selectivity for hydrogenation of Cu-MnO x/Al 2O 3 catalysts were investigated by a micro reactor-GC system The crystal structure and reduction property of the catalysts were also studied by means of XRD, TPR The results indicated that the addition of MnO x increased the activity and DME selectivity of CuO/Al 2O 3 catalyst for the hydrogenation of carbon monoxide, and the most active and selective for DME is the catalyst with a molar ratio of Cu/Mn=1∶1 The addition of MnO x cause the TPR peak of CuO/Al 2O 3 to move to a high temperature; at the same time, the hydrogen spillover on Cu made MnO x reduction easier The results of XRD indicated that the addition of MnO x increased the dispersion of CuO on γ-Al 2O 3
出处 《燃料化学学报》 EI CAS CSCD 北大核心 2000年第4期382-384,共3页 Journal of Fuel Chemistry and Technology
基金 浙江省自然科学基金 浙江省教委基金
关键词 二甲醚 双金属催化剂 一氧化碳加氢 Cu-Mn catalysts, hydrogenation of carbon monoxide, methanol, dimethyl ether(DME)
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参考文献6

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