催化裂化回炼油加氢精制反应十一集总宏观动力学模型

The Eleven Lumped Macrokinetics Model for Hydrotreating Reactions of FCC Recycle Oil

针对催化裂化回炼油加氢精制反应特点,运用集总方法对催化裂化回炼油及其加氢精制油中烃类组成进行十一集总划分,并通过MatLab软件对各集总加氢精制反应动力学方程进行模拟计算,建立了催化裂化回炼油加氢精制反应十一集总宏观动力学模型。所建模型可体现不同烃类间加氢反应性能的差异;加氢反应网络可反映催化裂化回炼油的加氢精制反应过程;在计算过程中设定各集总质量分数反应级数为一级,求出其他动力学参数数值。验证实验表明,该模型可较好地预测催化裂化回炼油在一定加氢条件下的烃类组成分布。

Eleven lumps for the hydrocarbons of FCC recycle oil and hydrotreated FCC recycle oil were divided through the lumped method to investigate the hydrotreating reaction feature, then the eleven lumped macrokinetics model for the hydrotreating reactions of FCC recycle oil was established through the analog computation of the kinetic equations of hydrotreating reactions with the MatLab software. This model could display the difference in performance of hydrogenation reactions among hydrocarbons. Meanwhile the hydrogenation reaction network could reflect the hydrotreating reaction process of FCC recycle oil. The reaction order for lumps was set as one in the process of computation, and other kinetic parameters were obtained. It was found through verification test that this model could predict the hydrocarbon component distribution of FCC recycle oil under certain hydrotreating conditions.