Kinetic Modeling of FCC Gasoline Catalytic Reaction

A molecular kinetic model was derived on the basis of catalytic cracking mechanism to represent the cracking reactions and the catalytic conversion reactions.Lumps were defined not only by their boiling range but also by their chemical compositions.A molecular lumped approach was then proposed on the catalytic conversion reactions in which cracking,hydrogen transfer,aromatic cyclization,condensation and yield of dry gas were taken into account.In order to predict the chemical composition of gasoline,fourteen kinetic parameters in the lumping reaction kinetic model were determined by parameter estimation method,then to get fourteen apparent activation energies and fourteen frequency factors.This work showed that the proposed model simulation results were coincident with the experimental data.The proposed model can not only predict successfully the yields,but also give the more information of the chemical component for gasoline,which was in favor of studying the quality improvement of gasoline.