离子交换膨润土在C_5烯烃醚化中的应用  

Etherification of C_5 olefins by ion-exchanged bentonite clays

作　　者：刘立新[1] 余自明[1] 李琼[1] 王佳[1] 

机构地区：[1]信阳师范学院化学化工学院,河南省信阳市464000

出　　处：《炼油技术与工程》2010年第3期14-17,共4页Petroleum Refinery Engineering

基　　金：河南省教育厅自然科学研究计划项目(2009B530006)

摘　　要：用离子交换法制备了H^+,Co^(2+),Al^(3+)型膨润土催化剂,在小型固定床反应器中评价了催化剂对C_5烯烃醚化的活性,考察了干燥温度对催化剂活性的影响。结果表明:所制备的催化剂对C_5烯烃醚化反应具有较高的活性,活性顺序为Al^(3+)>Co^(2+)>H^+。在干燥温度为160℃、醇烯摩尔比1.2:1、空速(LHSV)1.2、反应温度70℃和反应压力1.0 MPa下,膨润土催化剂比离子交换树脂催化剂(QRE)醚化反应活性高。Bentonite clays catalysts were prepared by exchanging H^+,Co^(2+) + and Al^(3+).The etherification activities of the catalysts were evaluated in a fixed-bed reactor with C_5 olefins as reactant.The effect of drying temperature on the catalysts activities were investigated.The results showed that the prepared catalysts have high etherification activities following the order of Al^(3+)>Co^(2+)>H^+.Under the conditions of liquid hourly space velocity(LHSV) 1.2,alcohol to olefin ration 1.2,reaction tempe...

关 键 词：膨润土 离子交换 醚化 

分 类 号：TQ203.2[化学工程—有机化工]