Study on Identification Method of Chemical Reaction Kinetic Parameters in Heavy Duty Diesel's SCR Catalytic Converter

Chemical reaction kinetic parameters are key factors to influence the NOx conversion in heavy duty diesel's SCR catalytic converter. Therefore the identification method of SCR chemical reaction kinetic parameters is studied in this paper. Based on the software AVL BOOST , SCR catalytic reaction model and its transient rate equations are established according to Eley-rideal mechanism. The identification method of kinetic parameters is studied applying AVL Design Explorer. The simulation model shows good agreement with experiment after identification. The result shows that the identification method is reasonable and feasible to ensure the reliability of catalytic converter model.