Methylation of benzene with methanol over zeolite catalysts in a low pressure flow reactor

Previous studies in this laboratory have shown oxygen to be a crucial requirement for the reaction of methane with benzene over zeolite catalysts at 400°C in a high pressure batch reactor. Thus, a two-step mechanism involving the intermediate formation of methanol by partial oxidation of methane fol...

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Bibliographic Details
Published in:Catalysis today 2000-12, Vol.63 (2), p.471-478
Main Authors: Adebajo, Moses O, Howe, Russell F, Long, Mervyn A
Format: Article
Language:English
Subjects:
Benzene
Catalysis
Catalysts: preparations and properties
Chemistry
Exact sciences and technology
Excellent correlation
General and physical chemistry
Methane
Methanol
Methylation
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zeolites’ performance
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Summary:Previous studies in this laboratory have shown oxygen to be a crucial requirement for the reaction of methane with benzene over zeolite catalysts at 400°C in a high pressure batch reactor. Thus, a two-step mechanism involving the intermediate formation of methanol by partial oxidation of methane followed by the methylation of benzene with methanol in the second step, was postulated. This paper now shows clearly that there is excellent correlation between the performance of the zeolite catalysts used for the methylation of benzene with methanol in a low pressure flow reactor and the methylation of benzene with methane in the presence of oxygen in a high pressure batch reactor. This finding therefore gives further support to the two-step mechanism for the oxidative methylation reaction at 400°C.
ISSN:0920-5861
1873-4308
DOI:10.1016/S0920-5861(00)00493-4