A Study of the Ten-Lump Kinetic Model in the Fluid Catalytic Cracking Unit Using
COMSOL Multiphysics, Digieneni Yousuo

Abstract
The COMSOL Multiphysics Computational Fluid Dynamics (CFD) software was used to simulate the Fluid Catalytic Cracking (FCC) riser reactor. The ten-lump kinetic model was used to describe the kinetics of the reactions in the reactor. The extra fine mesh generator was employed to produce grid refinement in the riser reactor which ensured a better prediction of the hydrodynamics of riser reactor in the Fluid Catalytic Cracking Unit (FCCU). The reactor riser of the Port Harcourt Refnery Company (PHRC) was used as a case study. The riser reactor was meshed into 77, 358 elements and simulation was carried out. The distributions of pressure, velocity, temperature and products yields were obtained. The predicted values were compared with practical values from Port Harcourt Refnery Company plant and they were in good agreement.

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