MCM-41负载硅钨酸催化乙醇脱水制乙烯  

Conversion of Alcohol into Ethylene over MCM-41 Supported Silicotungstic

作　　者：李本祥[1] 董新荣[1] 

机构地区：[1]湖南农业大学理学院应用化学系,湖南长沙410128

出　　处：《化工技术与开发》2010年第5期7-9,共3页Technology & Development of Chemical Industry

基　　金：湖南省科技计划项目(06FJ4118);湖南农业大学青年科学基金(07QN15)

摘　　要：合成了负载型杂多酸催化剂—硅钨酸/MCM-41,并用红外光谱对其进行了分析,探讨了杂多酸浸渍浓度,浸渍时间,焙烧温度及焙烧时间对乙醇脱水制乙烯收率的影响。实验表明,杂多酸浸渍浓度0.003moL.L-1,浸渍回流时间15h,焙烧温度400℃,焙烧时间3h,催化剂活性最高,乙烯收率可达98.8%以上。Supported heteropoly acid catalyst-HSiW/MCM-41 was prepared and characterized by IR spectrum.The factors affected the preparation of catalyst were studied in order to obtain high yield of ethylene.Results indicated that heteropolyacid concentration was 0.003moL/L,maceration time was 15h,roast temperature was 400℃,roast time 3h,the catalytic performance was better than the others and the yield of ethylene was 98.8%.

关 键 词：硅钨酸/MCM-41 催化 乙醇 乙烯 

分 类 号：TQ221.211[化学工程—有机化工]