The Effect of Cu Species on the Chemical State of Mo in the Mo/CuH-ZSM-5 Catalyst for Methane Non-oxidative Aromatization

Chem. J. Chinese Universities ›› 2000, Vol. 21 ›› Issue (3): 427.

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The Effect of Cu Species on the Chemical State of Mo in the Mo/CuH-ZSM-5 Catalyst for Methane Non-oxidative Aromatization

LI Shuang¹, WANG Dong-Yang¹, FU Ying-Huan¹, WU Peng¹, WU Tong-Hao¹, LIU Ying², ZHANG Chun-Lei³, LIN Li-Wu³, BAO Xin-He³

1. Department of Chemistry, Jilin University, Changchun 130023, China;
2. The General Chemical Works of Daqing Oil Field, Daqing 163712;
3. China Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Received:1999-05-24 Online:2000-03-24 Published:2000-03-24

Abstract

Abstract: The catalytic performance of Mo/CuH-ZSM-5 was compared with that of Mo/H-ZSM-5 for methane aromatization in the absence of oxygen. The Cu ions acted as promoters, and the activity and stability of catalysts for methane aromatization were enhanced to some extent. The fresh and reacted catalysts was studied by XRD, ESRand XPSmethods, and it is found that by the addition of Cu species, the reduction of MoO₃ was suppressed and the Cu species itself was reduced. It is supposed that the Mo species with a higher oxidative state is responsible for the activation and conversion of methane.

Key words: Transition metal ions, Ion exchanged zeolite, MoO₃/MH-ZSM-5, Methane non oxidative aromatization, Benzene

CLC Number:

O643.1

TrendMD:

LI Shuang, WANG Dong-Yang, FU Ying-Huan, WU Peng, WU Tong-Hao, LIU Ying, ZHANG Chun-Lei, LIN Li-Wu, BAO Xin-He. The Effect of Cu Species on the Chemical State of Mo in the Mo/CuH-ZSM-5 Catalyst for Methane Non-oxidative Aromatization[J]. Chem. J. Chinese Universities, 2000, 21(3): 427.

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The Effect of Cu Species on the Chemical State of Mo in the Mo/CuH-ZSM-5 Catalyst for Methane Non-oxidative Aromatization

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