Global strong solutions for a class of heterogeneous catalysis models

We consider a mathematical model for heterogeneous catalysis in a finite three-dimensional pore of cylinder-like geometry, with the lateral walls acting as a catalytic surface. The system under consideration consists of a diffusion–advection system inside the bulk phase and a reaction–diffusion–sorption system modeling the processes on the catalytic wall and the exchange between bulk and surface. We assume Fickian diffusion with constant coefficients, sorption kinetics with linear growth bound and a network of chemical reactions which possesses a certain triangular structure. Our main result gives sufficient conditions for the existence of a unique global strong L2L2-solution to this model, thereby extending by now classical results on reaction–diffusion systems to the more complicated case of heterogeneous catalysis.