介孔材料负载杂多酸催化剂催化乙醇脱水制乙烯  

Production Ethylene from Ethanol Dehydration Catalyzed by Mesoporous Material Supported HPW

作　　者：徐玲[1,2] 刘宗瑞[1] 吴淑杰[2] 吴通好[2] 张艳飞[2] 阚秋斌[2] 

机构地区：[1]内蒙古民族大学化学化工学院,内蒙古通辽028043 [2]吉林大学化学学院,吉林长春130021

出　　处：《分子催化》2010年第2期123-128,共6页Journal of Molecular Catalysis(China)

基　　金：内蒙古自治区高等学校科研项目(NJzy08084);国家自然科学基金项目(20673046)

摘　　要：采用浸渍法以一种介孔分子筛为载体负载l2磷-钨酸,制得不同负载量的固体酸催化剂.通过X射线衍射、傅里叶红外、N2吸附-脱附、透射电镜等表征手段对载体和催化剂进行表征.此外,采用乙醇脱水制备乙烯的反应评价该系列催化剂的活性,结果表明:在相同的反应温度下,催化剂的反应活性随着负载杂多酸量的增加而增大;对于负载量相同的固体酸催化剂,乙醇的转化率和乙烯的产率随着反应温度的升高而增大.We prepared a series of solid acid catalysts by supporting different loadings of phosphotungstie acid on mesoporous material. The catalysts were characterized by XRD, FT-IR, N2 adsorption-desorption and TEM techniques. In addition, we applied the catalysts to the ethanol dehydration to ethylene. The catalytic results showed that both the catalytic activity and selectivity to ethylene increased with the supported content of HPW in the same reaction temperature. As far as the same catalyst was concerned, the catalytic activity and catalytic selectivity to ethylene increased with the temperature.

关 键 词：介孔材料 杂多酸 负载 乙烯 

分 类 号：O643.32[理学—物理化学]