The conversion of dimethylether over Pt/H-ZSM5. A bifunctional catalyzed reaction

C.W.R. Engelen, J.P. Wolthuizen, J.H.C. Hooff, van

Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

Abstract

At low temperatures dimethylether mixed with hydrogen reacts over a platinum loaded H-ZSM5 catalyst selectivity to methane. Two successive steps can be distinguished; first the acid-catalyzed formation of a trimethyloxoniumion, followed by a metal-catalyzed hydrogenation to methane. Experiments with other zeolites show that the first step is rate determining; on stronger acid sites the activation energy is lower thus the reaction is faster. Reversely the experimental determined rate of methane formation can be used to characterize the acid strenqth.
Original languageEnglish
Title of host publicationCatalysis by acids and bases
EditorsB. Imelik, C. Naccache, G. Coudurier
Place of PublicationAmsterdam
PublisherElsevier
Pages391-398
ISBN (Print)0-444-42449-0
DOIs
Publication statusPublished - 1985
EventCatalysis by acids and bases : international symposium - Lyon, France
Duration: 25 Sep 198527 Sep 1985

Publication series

NameStudies in Surface Science and Catalysis
Volume20
ISSN (Print)0167-2991

Conference

ConferenceCatalysis by acids and bases : international symposium
CountryFrance
CityLyon
Period25/09/8527/09/85

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  • Cite this

    Engelen, C. W. R., Wolthuizen, J. P., & Hooff, van, J. H. C. (1985). The conversion of dimethylether over Pt/H-ZSM5. A bifunctional catalyzed reaction. In B. Imelik, C. Naccache, & G. Coudurier (Eds.), Catalysis by acids and bases (pp. 391-398). (Studies in Surface Science and Catalysis; Vol. 20). Elsevier. https://doi.org/10.1016/S0167-2991(09)60189-0