“…COMSOL has been successfully used before to model packed-bed reactors(Karim, Bravo, and Datye 2005;Bey and Eigenberger 1997;Hamel et al 2008;Moustafa, Abou-Elreesh, and Fateen 2007).Three Multiphysics models were used in the simulation: Free and porous media flow model, transport of diluted species for six species and heat transfer model. Despite the simple geometry of the problem, the numerical solution did not easily converge due to the sensitivity of the model to the effect of k 0 found in the KE1 and KE2 kinetic equations.…”