Molybdenum ZSM-5 zeolite catalysts for the conversion of methane to benzene

J Z  Zhang; M A  Long; Russell Francis Howe

doi:10.1016/S0920-5861(98)00202-8

Molybdenum ZSM-5 zeolite catalysts for the conversion of methane to benzene

J Z Zhang, M A Long, Russell Francis Howe

Chemistry

Research output: Contribution to journal › Article › peer-review

104 Citations (Scopus)

Abstract

This paper describes characterization studies of Mo-HZSM-5 zeolite catalysts active for the non-oxidative conversion of methane to benzene. FTIR, Al-27 and Si-29 NMR evidence is presented for migration of molybdenum into the zeolite pores during catalyst calcination at high temperatures. Mo K-edge EXAFS confirms that calcination produces highly dispersed oxomolybdenum or molybdate species which are converted to a molybdenum carbide phase under reaction conditions. Factors determining catalyst performance are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	293-300
Number of pages	8
Journal	Catalysis Today
Volume	44
Issue number	1-4
DOIs	https://doi.org/10.1016/S0920-5861(98)00202-8
Publication status	Published - 30 Sept 1998

Keywords

molybdenum
ZSM-5
methane
EXAFS
MO/HZSM-5 catalysts
ammonium heptamolybdate
unsupported powders
carbide catalysts
aromatization
dehydrogenation
activation
oxygen
MO/ZSM-5
absence

Access to Document

10.1016/S0920-5861(98)00202-8

Cite this

@article{e4fc5449dd7845fbb7538b767534555e,

title = "Molybdenum ZSM-5 zeolite catalysts for the conversion of methane to benzene",

abstract = "This paper describes characterization studies of Mo-HZSM-5 zeolite catalysts active for the non-oxidative conversion of methane to benzene. FTIR, Al-27 and Si-29 NMR evidence is presented for migration of molybdenum into the zeolite pores during catalyst calcination at high temperatures. Mo K-edge EXAFS confirms that calcination produces highly dispersed oxomolybdenum or molybdate species which are converted to a molybdenum carbide phase under reaction conditions. Factors determining catalyst performance are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.",

keywords = "molybdenum, ZSM-5, methane, EXAFS, MO/HZSM-5 catalysts, ammonium heptamolybdate, unsupported powders, carbide catalysts, aromatization, dehydrogenation, activation, oxygen, MO/ZSM-5, absence",

author = "Zhang, {J Z} and Long, {M A} and Howe, {Russell Francis}",

year = "1998",

month = sep,

day = "30",

doi = "10.1016/S0920-5861(98)00202-8",

language = "English",

volume = "44",

pages = "293--300",

journal = "Catalysis Today",

issn = "0920-5861",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Molybdenum ZSM-5 zeolite catalysts for the conversion of methane to benzene

AU - Zhang, J Z

AU - Long, M A

AU - Howe, Russell Francis

PY - 1998/9/30

Y1 - 1998/9/30

N2 - This paper describes characterization studies of Mo-HZSM-5 zeolite catalysts active for the non-oxidative conversion of methane to benzene. FTIR, Al-27 and Si-29 NMR evidence is presented for migration of molybdenum into the zeolite pores during catalyst calcination at high temperatures. Mo K-edge EXAFS confirms that calcination produces highly dispersed oxomolybdenum or molybdate species which are converted to a molybdenum carbide phase under reaction conditions. Factors determining catalyst performance are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

AB - This paper describes characterization studies of Mo-HZSM-5 zeolite catalysts active for the non-oxidative conversion of methane to benzene. FTIR, Al-27 and Si-29 NMR evidence is presented for migration of molybdenum into the zeolite pores during catalyst calcination at high temperatures. Mo K-edge EXAFS confirms that calcination produces highly dispersed oxomolybdenum or molybdate species which are converted to a molybdenum carbide phase under reaction conditions. Factors determining catalyst performance are discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

KW - molybdenum

KW - ZSM-5

KW - methane

KW - EXAFS

KW - MO/HZSM-5 catalysts

KW - ammonium heptamolybdate

KW - unsupported powders

KW - carbide catalysts

KW - aromatization

KW - dehydrogenation

KW - activation

KW - oxygen

KW - MO/ZSM-5

KW - absence

U2 - 10.1016/S0920-5861(98)00202-8

DO - 10.1016/S0920-5861(98)00202-8

M3 - Article

SN - 0920-5861

VL - 44

SP - 293

EP - 300

JO - Catalysis Today

JF - Catalysis Today

IS - 1-4

ER -

Molybdenum ZSM-5 zeolite catalysts for the conversion of methane to benzene

Abstract

Keywords

Access to Document

Fingerprint

Cite this