Assessment of a POD method for the dynamical analysis of a catalyst pellet with simultaneous chemical reaction, adsorption and diffusion: Uniform temperature case

The reduction of the model was performed by means of proper orthogonal decomposition (POD). Accuracy and computational efficiency of the reduced order model (ROM) were discussed for two kinetic models, i.e. a first order chemical kinetics and a Langmuir-Hinshelwood kinetics. To improve the computational efficiency of the model described by the Langmuir-Hinshelwood equation, the non-linear terms were approximated by a discrete empirical interpolation method (DEIM). High accuracy and efficiency of the proposed reduction approach was demonstrated.