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- W2085326054 abstract "Abstract The isomerization of m-xylene has been studied in the vapour phase using a nickel hydrogen mordenite (Ni-HM) catalyst. The catalyst was prepared by an impregnation technique and the reaction was carried out in a hydrogen atmosphere in a fixed-bed flow reactor. The nickel content of the catalyst varied from 0.5 wt.% to 5 wt.%. Mass transfer effects were found to be negligible. The activity and selectivity of the catalyst were affected by the hydrogen: m-xylene mole ratio, liquid weight hourly space velocity (LWHSV), reaction temperature, nickel content and nickel crystallite size. Nickel hydrogen mordenite (1.5%) gave maximum conversion and activity. A parallel reaction scheme with no interconversion between o- and p-isomers was proposed for modelling the reaction. The kinetic data were analysed on the basis of Langmuir—Hinshelwood kinetics with statistical data interpretation. The rate-controlling step in the overall kinetics of the reaction was thye dual-site surface reaction model. The activation energy values were 73.07 kJ mol −1 for p-xylene formation and 63.87 kJ mol −1 for o-xylene formation respectively." @default.
- W2085326054 created "2016-06-24" @default.
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- W2085326054 date "1987-10-01" @default.
- W2085326054 modified "2023-09-25" @default.
- W2085326054 title "Vapour phase isomerization study of m-xylene over a nickel hydrogen mordenite catalyst" @default.
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- W2085326054 doi "https://doi.org/10.1016/0300-9467(87)80048-5" @default.
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