Transport and Reaction in a Catalyst in 3D
Model ID: 235
Consider the study of a mass balance of a diluted species in air, for example, a pollutant in an exhaust stream. The model’s aim is to calculate the concentration profile of this species, which is decomposed by a catalyst present on the surface of a porous supporting structure. In a first step, you solve the velocity field for the solution assuming that the diluted pollutant has no influence on the density and viscosity of the fluid. This means that the velocity field is stationary. As a second step, you then calculate the time-dependent solution for the concentration field in order to evaluate the time it takes for the reactor to reach steady state.
|Slice plots showing the steady-state concentration distribution.|