Theoretical and empirical equilibrium concentration for Dry Reforming of Methane

Dry Reforming of Methane, which uses methane and carbon dioxide, the two greenhouse gases to produce synthesis gas has received considerable attention recently. In this work, equilibrium conversion that is the maximum possible conversion has been obtained experimentally and theoretically. Equilibrium concentration for Dry Reforming of Methane (DRM) has been calculated using Thermodynamics equilibrium and compared with experimental equilibrium concentration. Reaction coordinate (e), Gibbs free energy (G), reaction equilibrium constant (K), and reaction stoichiometric coefficients used for calculation of reaction progress and equilibrium composition in DRM at different temperatures. These parameters calculated by two primary methods, direct and Lagrange and compared with an empirical equilibrium that revealed by activity test on Ni/Al2O3 catalyst. The result shows that none of those can’t make an exact determination of empirical equilibrium compositions, but there was the relative good agreement between Lagrange method and empirical equilibrium. No significance difference was observed between these methods with empirical conditions at high temperature.