添加Mo对Cu/HZSM-5催化剂性能影响  

Catalytical Hydrogenation of CO_2 over Copper-molybdenum Oxide Supported on HZSM-5

作　　者：齐共新[1] 费金华[1] 侯昭胤 黄传敬 王冬杰 郑小明 

机构地区：[1]浙江大学西溪校区催化研究所,杭州1310028

出　　处：《应用化学》1999年第6期62-64,共3页Chinese Journal of Applied Chemistry

基　　金：浙江省自然科学基金!294067;浙江省教委基金!9512213;浙江省高等学校重大科技攻关项目!96002

摘　　要：The hydrogenation of carbon dioxide over Cu-Mo/HZSM-5 composite catalysts prepared by an impregnation method has been studied. The reduction property and adsorption ability of the catalyst towards hydrogen and carbon dioxide have been investigated by TPR and TPD-MS techniques. The results indicated that the addition of Mo increased the activity and dimethyl ether selectivity of Cu/HZSM-5 catalyst, the most active and selective for dimethyl ether was the catalyst with n (Cu)/n (Mo) = 5:1. The addition of Mo caused the TPR peaks of Cu/HZSM-5 to move to higher temperatures. CO2-TPD results revealed the raise of the adsorbability of the catalyst toward CO2.The hydrogenation of carbon dioxide over Cu-Mo/HZSM-5 composite catalysts prepared by an impregnation method has been studied. The reduction property and adsorption ability of the catalyst towards hydrogen and carbon dioxide have been investigated by TPR and TPD-MS techniques. The results indicated that the addition of Mo increased the activity and dimethyl ether selectivity of Cu/HZSM-5 catalyst, the most active and selective for dimethyl ether was the catalyst with n (Cu)/n (Mo) = 5:1. The addition of Mo caused the TPR peaks of Cu/HZSM-5 to move to higher temperatures. CO2-TPD results revealed the raise of the adsorbability of the catalyst toward CO2.

关 键 词：HZSM-5 催化剂 二氧化碳 加氢 

分 类 号：TQ223.121[化学工程—有机化工] TQ223.24