离子液体催化苯与长链烯烃烷基化的连续反应性能  

Continuous Reaction Performances of Benzene Alkylation with Long Chain Olefins Catalyzed by Ionic Liquid

作　　者：乔聪震[1] 李成岳[2] 

机构地区：[1]河南大学精细化学与工程研究所,河南开封475001 [2]北京化工大学可控化学反应科学与技术基础教育部重点实验室,北京100029

出　　处：《化学反应工程与工艺》2006年第4期289-293,共5页Chemical Reaction Engineering and Technology

基　　金：国家重点基础研究发展规划项目资助(G2000048006);河南大学校内基金项目资助(05YBZR025)

摘　　要：在强制混合-反应-分离-循环实验装置上考察了酸性氯铝酸盐室温离子液体[BMIM][AlCl4]催化苯与长链烯烃烷基化反应的连续操作、沿反应管侧线分布式连续进料和工业烯烃原料进料的连续反应性能。实验结果表明,即使在相对苛刻的反应条件下,纯烯烃原料1-十二烯单程转化率也能在反应器内达到100.0%,2-苯基异构体选择性高于37.7%。虽然侧线连续进料的位置不同,但在反应器出口前1-十二烯可完全转化。精制过的工业烯烃原料可以满足连续烷基化反应的要求。Based on a continuous mixing-reacting-separating-recycling experimental setup, the continuous reaction performances of benzene alkylation with long chain olefins catalyzed by ionic liquid [BMIM] [AlCl4] were investigated. Different situations including normal continuous operation mode （reagent materials or industrial olefins materials） and sidetrack feeding from different axial positions along the static mixing reactor （reagent materials） were treated. Even if the reactions were rather rigorous, the single pass conversions of 1-dodecene under different conditions were nearly 100.0%, the 2-phenyl isomer selectivities were higher than 37.7%. Although the sidetrack feeding positions were different along the reactor, the single pass conversions of 1-dodecene were attained 100.0%. Refined industrial olefins materials could meet the requirement of continuous alkylation. The influence of impurities such as di-olefins and non-benzene aromatics on the catalysis activity and stability should be studied furthermore.

关 键 词：离子液体 烷基化 苯 1-十二烯 循环 连续操作 

分 类 号：TQ032.42[化学工程] TQ241.1