Estimation of consecutive and parallel reactions during ethane dehydrogenation with carbon dioxide over Co-MCM-41

The main reactions between C 2 H 6 and CO 2 and their thermodynamics were studied, which indicated that there exist very complicated reactions between them. CO 2 can enhance the equilibrium conversion of C 2 H 4 formation via dehydrogenation of C 2 H 6 and react with the surface deposited carbon, resulting in stabilization of the activity and the prolongation of lifetime of the catalyst. Thus, the exploration of catalyst with desired C 2 H 4 selectivity from oxidative dehydrogenation of ethane (ODE) is most important. In this study, the possible reactions of ODE with CO 2 on Co-MCM-41 catalyst are discussed.