Partial hydrogenation of toluene over a ruthenium catalyst — A model treatment of a deactivation process

Partial hydrogenation of toluene over a ruthenium catalyst — A model treatment of a... 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. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Partial hydrogenation of toluene over a ruthenium catalyst — A model treatment of a deactivation process

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Publisher
Springer Netherlands
Copyright
Copyright © 1997 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856797X00312
Publisher site
See Article on Publisher Site

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.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Apr 14, 2009

References

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