EFFECTS OF PORE DIFFUSION ON THE SYNTHESIS OF METHANOL

Abstract The hierarchical model concept is applied for solving of the test-problem. Three levels of hierarchy are defined. On the first one the reaction rate at an inner point of a pore in the catalyst pellet is examined. On the 2-nd level, taking pore diffusion into account and introducing the so-called distortion factor, the mean reaction rate concerning a pellet is calculated. On the 3-rd level, the rate of reaction at an inner point of the reactor is given, and the parametric study of industrial reactor is carried out.