Mathematical modeling of catalytic fluidized-bed reactors—I. The multistage three-phase model Academic Article uri icon


  • The purpose of this paper is to develop a novel model for gas-solid fluidized-bed catalytic reactors. This model is called the "multistage three-phase model". It considers the fluid bed to be composed of a number of equivalent stages in series. Within each stage exchange of gas takes place between the bubble, cloud-wake and emulsion phases. An exact analytical solution for the concentration profiles along the bed is obtained. All parameters in the model are correlated with known or experimentally obtainable quantities. Model predictions are shown to compare reasonably well with various published experimental data on conversions of gas-fluidized catalytic reactors. A worked numerical example is given to demonstrate the applicability of the proposed model. © 1988.

author list (cited authors)

  • El-Halwagi, M. M., & El-Rifai, M. A.

citation count

  • 21

publication date

  • January 1988