Direct Production of Propene from Methoxy Species and Dimethyl Ether over H‑ZSM‑5

The mechanism of the initial C–C bond formation on methanol to olefin (MTO) and/or methanol to hydrocarbon (MTHC) reaction were not clarified. In this paper, the reaction mechanism and the reactivity of methoxy species on H-ZSM-5 zeolite with methanol or dimethyl ether (DME), which is the initial pr...

Full description

Saved in:
Bibliographic Details
Published inJournal of physical chemistry. C Vol. 116; no. 45; pp. 24091 - 24097
Main Authors Yamazaki, Hiroshi, Shima, Hisashi, Imai, Hiroyuki, Yokoi, Toshiyuki, Tatsumi, Takashi, Kondo, Junko N
Format Journal Article
LanguageEnglish
Published Columbus, OH American Chemical Society 15.11.2012
Subjects
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Ion-exchange
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Infrared spectrometry
Catalytic reaction
Ether
Hydrocarbon
Carbon carbon bond
Reaction mechanism
Infrared spectrum
Zeolite
Surface analysis
Methanol
Online AccessGet full text

Cover

More Information
Summary:The mechanism of the initial C–C bond formation on methanol to olefin (MTO) and/or methanol to hydrocarbon (MTHC) reaction were not clarified. In this paper, the reaction mechanism and the reactivity of methoxy species on H-ZSM-5 zeolite with methanol or dimethyl ether (DME), which is the initial product of MTO and MTHC reactions, were observed by infrared (IR) spectroscopy. The direct production of propene from methoxy groups and DME is evidenced on H-ZSM-5 zeolite by isotopic studies of IR observation of surface species and GC-mass analysis of products. Stepwise reactions of DME to ethene and water followed by methylation of ethene by methoxy groups were negligible during the generation of propene by the reaction of methoxy groups and DME.
ISSN:1932-7447
1932-7455
DOI:10.1021/jp307290z