摘要
根据石油催化加氢反应机理催化汽油加氢改质M、DSO反应段工艺特点,将催化重汽油馏分划分为芳烃,烯烃,环烷烃,异构烷烃,正构烷烃5个集总,将实验室微型反应器作等温处理,分别建立了M和DSO两个反应段的5集总动力学模型。以催化重汽油馏分为原料在小型管式固定床反应器中进行改质的实验数据为基础,基于MATLAB平台,采用龙格库塔法和遗传算法求取了M段和DSO段的动力学参数。从动力学角度上诠释了M-DSO工艺在催化汽油改质效果上优于DSO-M工艺。模型验证结果表明,所建立的模型是可靠的。在考虑反应器轴向温度变化的情况下,所建模型可为M-DSO工业装置的模拟优化提供良好指导。
Based on catalytic hydrogenation mechanism and features of M and DSO processes in fluid catalytic cracking(FCC) gasoline production, heavy fractions of FCC gasoline was lumped into aromatic hydrocarbon, olefin, naphthene, isoparaffin and paraffin. The experimental microreactor was assumed as an isothermal reactor and 5-lumping models for M and DSO processes were established. Kinetic parameters of M and DSO processes were calculated by Runge-kutta method and genetic algorithm with MATLAB using experimental data from a small-scale tubular fixed bed reactor. Kinetic results indicate that the M-DSO process is better than the DSO-M process in FCC gasoline upgrading. Moreover, validation results show that the models established are reliable. Considering temperature variation in the axial direction of reactors, the model established provides good guidance for simulation and optimization of commercial M-DSO units.
出处
《高校化学工程学报》
EI
CAS
CSCD
北大核心
2018年第1期125-132,共8页
Journal of Chemical Engineering of Chinese Universities
