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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：盘锦校区管委会副主任兼教学与科研工作部部长
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：化工学院
学科：工业催化. 物理化学
办公地点：化工实验楼B427
联系方式：18641143913
电子邮箱：guoxw@dlut.edu.cn
Methylation of 2-Methylnaphthalene with Methanol over NH4F and Pt Modified HZSM-5 Catalysts
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论文类型：期刊论文
发表时间：2010-10-01
发表刊物：CHINESE JOURNAL OF CHEMICAL ENGINEERING
收录刊物：SCIE、EI、ISTIC、Scopus
卷号：18
期号：5
页面范围：742-749
ISSN号：1004-9541
关键字：2-methylnaphthalene; methylation; HZSM-5; 2,6-dimethylnaphthalene; NH4F/Pt/HZSM-5
摘要：Shape-selective methylation of 2-methylnaphthalene (2-MN) was carried out over NH4F and Pt modified HZSM-5 (SiO2/Al2O3 = 83) catalysts in a fixed-bed down-flow reactor using methanol as methylating agent and 1,3,5-trimethylbenzene (1,3,5-TMB) as a solvent. Pt promoted HZSM-5 catalysts showed low concentration of coke-like polycondensed aromatics, NH4F modification decreased non-shape-selective acid sites. After Pt and NH4F co-modification, both conversion of 2-MN and selectivity to 2,6-DMN were improved. 6%NH4F/0.5%Pt/HZSM-5 catalyst exhibited 13.8% of 2-MN conversion with 6.2% of 2,6-DMN yield after 7 h time on stream (TOS), and 2,6-/2,7-DMN ratio of 1.7 after 10 h of TOS.