The theoretical model for a packed porous catalytic particle of the slab, cylindrical, and spherical geometries shape in fixed-bed electrochemical reactors is discussed. These particles have internal mass concentration temperature gradients endothermic or exothermic reactions. based on nonlinear reaction–diffusion equation containing term with an exponential relationship between intrinsic react...

Fixed bed reactors play an important role in converting solid wastes to high-quality products. The wastes, as well the corresponding catalysts, are often made into cylindrical particles. However, research on drag force for particles is still rarely reported. In this work, fixed porosity was firstly predicted with unresolved CFD-DEM method and validated against experimental data. Then, Ergun mod...