Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization

Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization

The structure changes of Mo/ZSM-5 catalysts with different Mo content (2 and 10 wt. % Mo) and Si/Al atomic ratio (17, 30 and 45) during the methane dehydroaromatization have been investigated by X-ray powder diffractometry, N2 adsorption and transmission electron microscopy. The treatment of Mo/ZSM-...

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Main Authors: Z. R. Ismagilov, E. V. Matus, I. Z. Ismagilov, M. A. Kerzhentsev, V. I. Zaikovskii, K. D. Dosumov, A. G. Mustafin
Format: Article
Language:English
Published: al-Farabi Kazakh National University 2010-01-01
Series:Eurasian Chemico-Technological Journal 
Online Access:http://ect-journal.kz/index.php/ectj/article/view/476
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spelling doaj-1303a03632db4684aaff3ef1e62fadf32020-11-24T21:17:12Zengal-Farabi Kazakh National UniversityEurasian Chemico-Technological Journal 1562-39202522-48672010-01-0112191610.18321/ectj20476Structural Changes of Mo/ZSM-5 Catalysts During the Methane DehydroaromatizationZ. R. Ismagilov0E. V. Matus1I. Z. Ismagilov2M. A. Kerzhentsev3V. I. Zaikovskii4K. D. Dosumov5A. G. Mustafin6Boreskov Institute of Catalysis, Novosibirsk, RussiaBoreskov Institute of Catalysis, Novosibirsk, RussiaBoreskov Institute of Catalysis, Novosibirsk, RussiaBoreskov Institute of Catalysis, Novosibirsk, RussiaBoreskov Institute of Catalysis, Novosibirsk, RussiaJCS “D.Sokolski Institute of Organic Catalysis and Electrochemistry”, Almaty, Kazakhstan,Bashkir State University, Ufa, RussiaThe structure changes of Mo/ZSM-5 catalysts with different Mo content (2 and 10 wt. % Mo) and Si/Al atomic ratio (17, 30 and 45) during the methane dehydroaromatization have been investigated by X-ray powder diffractometry, N2 adsorption and transmission electron microscopy. The treatment of Mo/ZSM-5 catalysts in reducing atmosphere (CH4 or H2) at about 700 oC promotes development of mesoporous system. The pores are open to the exterior of the zeolite grain and have an entrance diameter of ~ 4-10 nm. It is proposed that mesopore formation in Mo/ZSM-5 catalyst is connected with the dealumination of zeolite. The mesopore formation in the parent H-ZSM-5 zeolite by NaOH treatment does not improve the activity of /ZSM-5 catalyst.http://ect-journal.kz/index.php/ectj/article/view/476
collection DOAJ
language English
format Article
sources DOAJ
author Z. R. Ismagilov
E. V. Matus
I. Z. Ismagilov
M. A. Kerzhentsev
V. I. Zaikovskii
K. D. Dosumov
A. G. Mustafin
spellingShingle Z. R. Ismagilov
E. V. Matus
I. Z. Ismagilov
M. A. Kerzhentsev
V. I. Zaikovskii
K. D. Dosumov
A. G. Mustafin
Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
Eurasian Chemico-Technological Journal 
author_facet Z. R. Ismagilov
E. V. Matus
I. Z. Ismagilov
M. A. Kerzhentsev
V. I. Zaikovskii
K. D. Dosumov
A. G. Mustafin
author_sort Z. R. Ismagilov
title Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
title_short Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
title_full Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
title_fullStr Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
title_full_unstemmed Structural Changes of Mo/ZSM-5 Catalysts During the Methane Dehydroaromatization
title_sort structural changes of mo/zsm-5 catalysts during the methane dehydroaromatization
publisher al-Farabi Kazakh National University
series Eurasian Chemico-Technological Journal 
issn 1562-3920
2522-4867
publishDate 2010-01-01
description The structure changes of Mo/ZSM-5 catalysts with different Mo content (2 and 10 wt. % Mo) and Si/Al atomic ratio (17, 30 and 45) during the methane dehydroaromatization have been investigated by X-ray powder diffractometry, N2 adsorption and transmission electron microscopy. The treatment of Mo/ZSM-5 catalysts in reducing atmosphere (CH4 or H2) at about 700 oC promotes development of mesoporous system. The pores are open to the exterior of the zeolite grain and have an entrance diameter of ~ 4-10 nm. It is proposed that mesopore formation in Mo/ZSM-5 catalyst is connected with the dealumination of zeolite. The mesopore formation in the parent H-ZSM-5 zeolite by NaOH treatment does not improve the activity of /ZSM-5 catalyst.
url http://ect-journal.kz/index.php/ectj/article/view/476
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AT makerzhentsev structuralchangesofmozsm5catalystsduringthemethanedehydroaromatization
AT vizaikovskii structuralchangesofmozsm5catalystsduringthemethanedehydroaromatization
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