催化剂中添加不同分子筛催化甲醇与二氧化碳反应合成碳酸二甲酯的研究  

The Research on Synthesis of Dimethyl Carbonate from the Reaction of CO_2 with Methanol Over La_2O_3-ZrO_2 with Molecular Sieve Catalysts

作　　者：赵越[1] 贾雯雯[1] 商永臣[1] 

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2016年第4期84-86,共3页Natural Science Journal of Harbin Normal University

基　　金：黑龙江省教育厅科学技术重点项目(12521z015)

摘　　要：用共沉淀法制备Cu/ZnO-Al_2O_3/La_2O_3-ZrO_2催化剂,并向其中添加不同分子筛.对比发现,Cu/ZnO-Al_2O_3/La_2O_3-ZrO_2/HZSM5催化剂的催化活性是最高的.在催化剂使用量为1.0g、反应温度为230℃、反应压力为1.0MPa的条件下,甲醇的转化率达到8.99%,碳酸二甲酯的选择性为88.33%.Catalyst Cu/ZnO- Al2O3 -La2O3 -ZrO2 added different molecular sieves were prepared by coprecipitation method in this paper. Through comparing catalysts, it showed that the catalytic activity of Cu/ ZnO - Al2O3/La2O3 - ZrOE/HZSM - 5 was the best of these three catalysts. The reaction conditions are as follows： the reaction temperature is 230℃, catalyst dosage was 1.0 g, reaction pressure was 1, 0MPa. Under the reaction conditions, to Cu/ZnO -Al2o3/LaO3 -ZarO2/HZSM -5 as catalyst. The conversion rate of methanol can reach 8.99%, and the selectivity of DMC is 88.33%.

关 键 词：碳酸二甲酯 二氧化碳 Cu/ZnO-Al2O3/La2O3-ZrO2 HZSM5分子筛 

分 类 号：O643[理学—物理化学]