助剂Mn对CuAl_2O_3催化剂一氧化碳加氢性能的影响  

EFFECTS OF Mn ON Cu/Al_2O_3 CATALYSTS FOR HYDROGENATION OF CARBON MONOXIDE

作　　者：齐共新[1] 费金华[1] 侯昭胤[1] 郑小明[1] 

机构地区：[1]浙江大学西溪校区催化研究所,杭州310028

出　　处：《燃料化学学报》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

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 2OIn 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

关 键 词：二甲醚 双金属催化剂 一氧化碳加氢 铜 锰 

分 类 号：TQ223.24[化学工程—有机化工] TQ426.8