Shape-selective methylation of 2-methylnaphthalene with methanol over hydrothermal treated HZSM-5 zeolite catalysts
发布时间：2019-03-10
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- 论文类型：
- 期刊论文
- 发表时间：
- 2008-11-01
- 发表刊物：
- CHEMICAL ENGINEERING SCIENCE
- 收录刊物：
- Scopus、EI、SCIE
- 文献类型：
- J
- 卷号：
- 63
- 期号：
- 21
- 页面范围：
- 5298-5303
- ISSN号：
- 0009-2509
- 关键字：
- Methylation; HZSM-5; 2-Methylnaphthalene; Hydrothermal treatment; Shape-selective; Dealumination
- 摘要：
- Shape-selective methylation of 2-methylnaphthalene (2-MN) was carried out over hydrothermally treated HZSM-5 (SiO2/Al2O3 = 83) zeolite catalysts under a fixed-bed down-flow reactor, methanol and 1,3,5-trimethyl benzene (TMB) were used as methylating agent and solvent, respectively. The results show that hydrothermal treatment improves the selectivity to 2,6-dimethylnaphthalene (2,6-DMN) and the stability. HZSM-5 catalyst hydrothermally treated at 550 degrees C followed by acid leaching exhibits 7.1% of 2,2,6-DMN yield after 5 h time on stream (TOS), and 13.4% of 2-MN conversion with the 2,6-/2,7-DMN ratio of 1.8 after 8 h of TOS. (c) 2008 Elsevier Ltd. All rights reserved.
- 第一作者
- Zhao, Liang
- 合写作者
- Song, Chunshan,Liu, Huimin,Guo, Xinwen,Wang, Xiangsheng,Wang, Hongbo,Liu, Min
- 通讯作者
- Guo, XW (reprint author), Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China.