Methylation of 2-Methylnaphthalene with Methanol over NH4F and Pt Modified HZSM-5 Catalysts
发表时间：2019-03-09
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- 论文类型：
- 期刊论文
- 第一作者：
- Zhao Liang
- 通讯作者：
- Guo, XW (reprint author), Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China.
- 合写作者：
- Guo Xinwen,Liu Min,Wang Xiangsheng,Song Chunshan
- 发表时间：
- 2010-10-01
- 发表刊物：
- CHINESE JOURNAL OF CHEMICAL ENGINEERING
- 收录刊物：
- SCIE、EI、ISTIC、Scopus
- 文献类型：
- J
- 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.
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- 否
