Study on Kinetics for Desulfurization of Model Diesel

• 作 者: Qian Jianhua Zhou Yuenan Liu Lin Wang Yue Xing Jinjuan Lü Hong
• 机 构: Liaoning Province Key Laboratory for Synthesis and Application of Functional Compounds, Bohai Univer
• 出 处: 中国炼油与石油化工（英文版）
• 发表日期: 2009年2期
• 关键词: oxidative desulfurization kinetic equation curve fitting equilibrium constant

In this study, by means of the experiments for desulfurization of model diesel through oxi-dative extraction, the changes associated with the rate of desulfurization of diesel and the mechanism for oxidation of sulfides in diesel were explored. Through studying the mechanism for oxidation of sulfides and the principle of solvent extraction, the kinetic equation of desulfurization via oxidative extraction were determined. By means of the evaluation of model parameters and curve fitting, the reaction order between organic sulfide and sulfone, the intrinsic oxidation rate constant of organic sulfide and sulfone, and the equilibrium constant between suifone in model diesel and extractive sol-vent were determined. The experimental values of the desulfurization rate and the theoretical values of the corresponding model equation had closely demonstrated that the desulfurization reaction rate had high accuracy. And the reaction kinetics could provide an important basis for diesel desulfurization process in the future.