Abstract
Selective hydrogenation of fluid catalytic cracking (FCC) gasoline is an effective method to reduce the sulfur and olefin contents in it for clean gasoline. Based on the characteristics of the DSO-M and M-DSO processes for the hydro-upgrading of heavy fraction of FCC gasoline hydro-upgrading and the contribution of different hydrocarbons to the octane number, two five-lump reaction networks for M upgrading stage and DSO hydro-desulfurization stage respectively were constructed. According to the experimental data from a micro-tubular fixed bed reactor for FCC gasoline hydro-upgrading, the kinetic parameters of the 5-lump models for M and DSO stages were worked out respectively by Runge–Kutta algorithm and genetic algorithm. The kinetic analysis demonstrates that M-DSO process is better than DSO-M process. Moreover, verification indicates that the models established have good reliability and extrapolation.
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