Abstract
Hydrogenation of toluene to methylcyclohexene and methylcyclohexane was performed over a commercial 5% Ru/act. charcoal catalyst. The reaction was strongly affected by deactivation of the catalyst. The complete reaction model was examined together with a number of its simplified versions regarding their ability to fit experimental data. On the basis of the regression analysis results it was shown that methylcyclohexene could be thought as the main source of the strongly and irreversibly adsorbed surface deposits responsible for activity decrease of the catalyst. Direct transformation of toluene to methylcyclohexane was found to be insignificant. On the other hand substantial role of disproportionation of methylcyclohexene was proved.
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Belohlav, Z., Kluson, P. & Cerveny, L. Partial hydrogenation of toluene over a ruthenium catalyst — A model treatment of a deactivation process. Res. Chem. Intermed. 23, 161–168 (1997). https://doi.org/10.1163/156856797X00312
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DOI: https://doi.org/10.1163/156856797X00312