共沉淀法制备浆状催化剂前躯体对一步法合成二甲醚的影响  

Effect of slurry catalyst's precursor prepared by coprecipitation on one-step synthesis of DME

作　　者：宋雅君[1] 黄伟[1] 樊金串[1] 吉鹏[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,山西太原030024

出　　处：《应用化工》2010年第8期1118-1122,共5页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(20706039;20471040);国家"九七三"计划项目(2005CB221204)

摘　　要：用共沉淀法制备一步法合成二甲醚浆状催化剂的前躯体,完全液相热处理后,在浆态床中对其催化性能进行了测试,通过XRD、BET和元素分析对其进行了表征。结果表明,将Zr组分引入CuZnSiAl催化剂后,催化剂二甲醚的选择性提高。A series of bifunctional catalyst＇ s precursors were prepared by coprecipitation and then treated with complete liquid-phase technology. The catalytic performance was evaluated in a slurry reactor. The catalysts were characterized by means of XRD, BET and elemental analysis. The results showed that the addition of Zr improved DME selectivity.

关 键 词：二甲醚 Cu基催化剂 浆态床 完全液相法 共沉淀 

分 类 号：O643[理学—物理化学]