The study of methanol aromatization on transition metal modified ZSM-5 catalyst

被引：24

作者：

Ji, Keming ^{[1
]}

Xun, Jiayao ^{[1
]}

Liu, Ping ^{[1
]}

Song, Qingwen ^{[1
]}

Gao, Junhua ^{[1
]}

Zhang, Kan ^{[1
]}

Li, Jingyuan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Shanxi, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL ENGINEERING | 2018年 / 26卷 / 09期

关键词：

Aromatization; ZSM-5; Metal modified; ZEOLITE; DISPROPORTIONATION; CONVERSION; AROMATICS; TOLUENE;

D O I：

10.1016/j.cjche.2018.03.024

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this article, transition metals of Cu, La and Zn were used as adjuvant to preparemodified HZSM-5 by impregnation method. The catalysts were characterized by XRD, BET, NH3-TPD and Py-IR to reveal the microstructure and acid property. The catalysis performances of methanol aromatization of catalysts were investigated in a fixed-bed reactor. The results show that the strength and distribution of acid center of these catalysts are significantly influenced by the species of transition metal. There are more mediate strong Lewis acid center in Zn modified HZSM-5 catalyst and therefore exhibits higher selectivity to aromatic, benzene, toluene and xylenes in the MTA reaction.. (c) 2018 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

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页码：1949 / 1953

页数：5

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