Methylcydohexane (MCH) has been proposed as a potentially attractive vector for hydrogen storage. For use in transportation, hydrogen when stored as MCH, needs to be liberated by dehydrogenation (endothermic reaction) in a compact catalytic reactor. By coupling the reactor with the engine, the waste heat could be utilized to run the reaction. Industrial Pt-Sn/Al2O3 catalyst was chosen as suitable for the reaction. In this paper, a global model for the performance of the dehydrogenation reactor is developed. This model combines the kinetic models for the MCH dehydrogenation, and for the deactivation of the industrial Pt-Sn/Al2O3 catalyst, and the bidimensional model for a tubular reactor. In addition, new experimental data, compared with those predicted by the global model are presented.