甲醇脱水制二甲醚催化剂的研究  

MgO/HZSM-5 Catalysts for the Dehydration of Methanol to Dimethyl Ether

作　　者：黄亮[1] 吴静[1] 李海花[1] 刘翠改[1] 

机构地区：[1]沈阳化工大学化学工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2010年第4期321-323,348,共4页Journal of Shenyang University of Chemical Technology

摘　　要：采用浸渍法制备MgO/HZSM-5负载型催化剂,测定其对甲醇制备二甲醚反应的活性,且在此基础上考察活性组分负载量、反应温度、空速对催化剂性能的影响,同时用XRD、NH3-TPD、BET等测试手段对催化剂的结构特征进行研究.结果表明:采用浸渍法制备的MgO/HZSM-5对甲醇脱水制备二甲醚具有良好的活性和选择性.在反应温度260℃,空速1 500 h-1时,催化剂具有最佳的催化性能.MgO/HZSM-5 catalysts were prepared by dipping technique.Activities of the catalysts were examined and structure of the catalysts was characterized by XRD,BET and NH3-TPD.Results showed that the prepared catalyst had good activity and selectivity for methanol dehydration to dimethyl ether.In the reaction temperature of 260 ℃ and space velocity of 1 500 h-1,the catalyst had the best catalytic performance.

关 键 词：甲醇 脱水 二甲醚 浸渍法 HZSM-5分子筛催化剂 

分 类 号：O643[理学—物理化学] TQ426[理学—化学]