Aromatization of n-hexane over ZnO/H-ZSM-5 catalysts

Journal Article · Thu Dec 01 00:00:00 EST 1988 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(88)90032-2· OSTI ID:7128623

Kanai, J; Kawata, N ^[1]

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1. Idemitsu Kosan Co., Ltd., Kimitsu (Japan)

The mechanism of transformation of n-hexane into aromatics over ZnO/H-ZSM-5 catalyst has been investigated. The yields of aromatics in the transformation of n-hexane over H-ZSM-5 are enhanced by mechanical mixing of ZnO as well as by ion exchange or impregnation of zinc cation. It is concluded that aromatization of n-hexane over ZnO/H-ZSM-5 is a bifunctional reaction, and that ZnO as well as H-ZSM-5 takes part both in the activation of n-hexane and in the aromatization of lower olefins. By contrasting the conversion of n-hexane with that of 1-hexane, it is found that aromatization of n-hexane over ZnO/H-ZSM-5 involves both the dehydrogenation of n-hexane into hexene and that of the oligomerized products into aromatics. It is proposed that ZnO catalyzes the dehydrogenation of n-hexane into hexene and of the oligomerized products into aromatics.

• OSTI ID: 7128623
• Journal Information: Journal of Catalysis; (USA), Vol. 114:2; ISSN 0021-9517
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
AROMATICS
SYNTHESIS
HEXANE
CATALYTIC REFORMING
ZEOLITES
CATALYTIC EFFECTS
ZINC OXIDES
CATALYST SUPPORTS
CATALYSTS
CHEMICAL REACTION KINETICS
COMPARATIVE EVALUATIONS
DEHYDROGENATION
HEXENES
IMPREGNATION
ION EXCHANGE
NAPHTHA
SAMPLE PREPARATION
ALKANES
ALKENES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL TAR OILS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
MINERALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
REACTION KINETICS
REFORMER PROCESSES
ZINC COMPOUNDS
020400* - Petroleum- Processing