Comprehensive multiphysics modeling of photocatalytic processes by computational fluid dynamics based on intrinsic kinetic parameters determined in a differential photoreactor

•Intrinsic kinetic parameters determined in an optically differential photoreactor.•Predictive multiphysics CFD simulation of an annular photocatalytic reactor.•Good correlation between experimental and simulation results for velocity field.•Optimal TiO2 concentration calculated by radiation absorption simulation.•Successful experimental validation of CFD conversion predictions with error <10%.