Influence of internal heat removal upon effectiveness, stability of an exothermic catalytic film: Implications for process intensification

► Demonstrated interaction between endothermic and exothermic catalytic films in heat-exchanger microreactor. ► Modeled catalytic and non-catalytic internal cooling of exothermic catalytic films in microreactors. ► Demonstrate influence of wall thermal conductivity and Thiele moduli upon ignition/extinction and catalyst effectiveness.