Infrared spectral characteristics of the interaction of olefins with H-ZSM-5 zeolite

Journal Article · Fri Apr 01 04:00:00 EST 1983 · J. Catal.; (United States)

DOI:https://doi.org/10.1016/0021-9517(83)90269-5· OSTI ID:5486107

Lechert, H ^[1]; Dimitrov, C; Bezuhanova, C; Nenova, V

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1. Univ. of Hamburg, West Germany

Aluminosilicate materials of the so-called ''pentasil'' type have recently acquired great impotance in heterogeneous catalysis. Above all there has been much work with the ZSM-5 pentasil, which has especially come into prominence because of its ability to dehydrate methanol to hydrocarbons and its extremely high coke stability in cracking reactions. The mechanism of this reaction is an object of much discussion. Omitting the question about the first C-C bond formation, Vedrine et al., studying the ir and uv spectra of adsorbed ethene, propene, butene, methanol, and dimethyl ether, suggested a carbenium ion formation. The aim of this work was to reduce the amount of parallel reactions and to try to detect the carbenium ions just preceding the aromatic ring closure. For this reason higher olefins, namely 1-hexene, 1-heptene, and cyclohexene were used as adsorbates. For comparison the ir spectrum of adsorbed benzene was investigated.

• OSTI ID: 5486107
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 80:2; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALKENES
ALUMINIUM COMPOUNDS
ALUMINIUM SILICATES
AROMATICS
BENZENE
CATALYSIS
CHEMICAL BONDS
CHEMICAL REACTIONS
CHEMISORPTION
CRACKING
DECOMPOSITION
ETHERS
HIGH TEMPERATURE
HYDROCARBONS
HYDROXY COMPOUNDS
INFRARED SPECTRA
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METHANOL
MINERALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXYGEN COMPOUNDS
PYROLYSIS
SEPARATION PROCESSES
SILICATES
SILICON COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
SPECTRA
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
ULTRAVIOLET SPECTRA
ZEOLITES