Modeling exhaust gas pollution abatement: Part I — single hydrocarbon propylene

The one-dimensional models for catalytic converters are used to account for the reduction of pollutants like hydrocarbons (HC), carbon monoxide (CO) and nitric oxide (NO). The proposed model considers both gaseous as well as solid phase reactions of only one gas propylene that could possibly be occurring in the converter channels. Metal substrates were considered, as the better heat conducting solid material. The Runge–Kutta method and backward implicit schemes were employed to solve the coupled ordinary and partial differential equations.