纳米MCM-49分子筛在丙烯与苯烷基化反应中的催化性能  

The Catalytic Performances of Nanometer MCM-49 Zeolites in Alkylation of Benzene with Propylene

作　　者：邓广金[1] 张钰[1,2] 赵胤[1] 李正[1] 杨积学[3] 牛志蒙[3] 姜国玉[3] 

机构地区：[1]中国石油吉林石化分公司研究院,吉林吉林132021 [2]吉林化工学院,吉林吉林132021 [3]中国石油吉林石化分公司染料厂,吉林吉林132021

出　　处：《石化技术》2011年第2期5-8,21,共5页Petrochemical Industry Technology

摘　　要：用硅溶胶为硅源、偏铝酸钠为铝源、六亚甲基亚胺为模板剂进行动态合成纳米MCM-49分子筛,并进行X射线衍射、扫描电子显微镜和透射电子显微镜表征。研究了纳米MCM-49分子筛在丙烯与苯烷基化反应中催化性能,确定了最佳的评价条件:温度为120～140℃,苯烯摩尔比为2.0～3.5,丙烯液体空速0.8～2.5h^(-1);在该条件下进行了纳米MCM-49分子筛的寿命实验。结果表明,纳米MCN-49分子筛合成异丙苯催化剂性能较好。The nanometer MCM-49 zeolites were synthesized with silica solution and sodium metaaluminate, and hexamethyleneimine as the template. The sample was characterized by X-ray diffraction, scanning electron microscope, and transmission electron microscope. Catalytic performances of the sample were investigated in the alkylation reaction between benzene and propylene. The best reaction condition as follows： the temperature was from 120℃ to 140℃, the molar ratio of benzene to propylene in 2.0-3.5, and the liquid space velocity of propylene in 0.8-2.5 h-1, life test of the zeolites under the conditions. It was found that nanometer MCM-49 zeolites had a better alkylation performance.

关 键 词：纳米分子筛 催化剂 烷基化 

分 类 号：TQ241.1[化学工程—有机化工]