Total catalytic oxidation of a side-product for an autothermal restoring hydrogen process

The catalytic total oxidation of toluene is used to bring the required calories to restore hydrogen from methylcyclohexane (MCH). Two coupled reactions, both catalyzed by Pt/alumina, are thus considered in one autothermal heat-exchanger reactor (HER): endothermic dehydrogenation of methylcyclohexane...

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Bibliographic Details
Published in:Catalysis today 2010-11, Vol.157 (1), p.321-326
Main Authors: Kerleau, P., Swesi, Y., Meille, V., Pitault, I., Heurtaux, F.
Format: Article
Language:English
Subjects:
Catalysis
Chemical and Process Engineering
Chemical engineering
Chemical Sciences
Chemistry
Coated reactor
Combustion
Coupling
Dehydrogenation
Engineering Sciences
Exact sciences and technology
General and physical chemistry
Heat-exchanger reactor
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:The catalytic total oxidation of toluene is used to bring the required calories to restore hydrogen from methylcyclohexane (MCH). Two coupled reactions, both catalyzed by Pt/alumina, are thus considered in one autothermal heat-exchanger reactor (HER): endothermic dehydrogenation of methylcyclohexane and catalytic combustion of less than 10% of produced toluene (6% for the chemical reaction, about 4% for heat losses). Both reactions are carried out at 350 °C. Methylcyclohexane and toluene light-off curves have been performed in one elementary module. Methylcyclohexane combustion has been eliminated due to its safety drawbacks, although the MCH combustion provides best stability to autothermal HER.
ISSN:0920-5861
1873-4308
DOI:10.1016/j.cattod.2010.02.011