复合分子筛Y-Beta-ZSM-12的甲苯甲醇烷基化性能研究  

Catalytic Activity of Composite Zeolites Y-Beta-ZSM-12 for Alkylation of Toluene With Methanol

作　　者：高杭 秦波 杜艳泽 柳伟 王晓司 GAO Hang;QIN Bo;DU Yan-ze;LIU Wei;WANG Xiao-si(Dalian Research Institute of Petroleum and Petrochemicals, Liaoning Dalian 116049, China)

机构地区：[1]中国石油化工股份有限公司大连石油化工研究院,辽宁大连116045

出　　处：《当代化工》2018年第4期723-726,共4页Contemporary Chemical Industry

摘　　要：对复合分子筛Y-Beta-ZSM-12进行XRD、N_2吸附-脱附、NH_3-TPD和Py-IR一系列表征,并将该分子筛用于甲苯甲醇烷基化反应中。结果表明,与HY-C催化剂相比,复合分子筛催化剂HYBZ-C的中强酸量增加,复合的ZSM-12分子筛的加入使该催化剂提高了抗积碳能力,HYBZ-C催化剂的甲苯甲醇烷基化性能明显提高,在450℃的甲苯转化率为33.3%。Y-Beta-ZSM-12 composite molecular sieves were characterized by XRD, BET, NH_3-TPD and Py-IR, and used for alkylation of toluene with methanol. It was proved that the amount of medium strong acid of catalyst HYBZ-C was more than that of catalyst HY-C. Adding ZSM-12 molecular sieves improved the ability of resisting coke, resulting in good performance in alkylation with toluene conversion of 33.3%.

关 键 词：复合分子筛 Y-Beta-ZSM-12 抗积碳能力 烷基化 

分 类 号：TQ032.4[化学工程]