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

doi:10.1016/j.cjche.2018.03.024

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (9): 1949-1953.DOI: 10.1016/j.cjche.2018.03.024

• Catalysis, Kinetics and Reaction Engineering • 上一篇下一篇

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

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li

State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

收稿日期:2017-07-11 修回日期:2018-03-09 出版日期:2018-09-28 发布日期:2018-10-17
通讯作者: Kan Zhang,E-mail address:zhangkan@sxicc.ac.cn
基金资助:
Supported by the Key Technology and Demonstration on Low Rank Coal Clean, Efficient and Cascade Application Project; Synthesis Technology of Coal-based Bulk Chemical and Fuel; Research on Key Technology of Methanol to Aromatics (MTA) (XDA 07070800).

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

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li

State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China

Received:2017-07-11 Revised:2018-03-09 Online:2018-09-28 Published:2018-10-17
Contact: Kan Zhang,E-mail address:zhangkan@sxicc.ac.cn
Supported by:
Supported by the Key Technology and Demonstration on Low Rank Coal Clean, Efficient and Cascade Application Project; Synthesis Technology of Coal-based Bulk Chemical and Fuel; Research on Key Technology of Methanol to Aromatics (MTA) (XDA 07070800).

摘要/Abstract

摘要： In this article, transition metals of Cu, La and Zn were used as adjuvant to prepare modified 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.

关键词: Aromatization, ZSM-5, Metal modified

Abstract: In this article, transition metals of Cu, La and Zn were used as adjuvant to prepare modified 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.

Key words: Aromatization, ZSM-5, Metal modified

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li. The study of methanol aromatization on transition metal modified ZSM-5 catalyst[J]. Chinese Journal of Chemical Engineering, 2018, 26(9): 1949-1953.

Keming Ji, Jiayao Xun, Ping Liu, Qingwen Song, Junhua Gao, Kan Zhang, Jingyuan Li. The study of methanol aromatization on transition metal modified ZSM-5 catalyst[J]. Chin.J.Chem.Eng., 2018, 26(9): 1949-1953.

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

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

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