催化裂化回炼油加氢反应动力学模型  

Kinetic Models for Hydrogenation of FCC Recycle Oil

作　　者：张奎[1] 戴立顺[1] 刘涛[1] 邵志才[1] 聂红[1] ZHANG Kui;DAI Lishun;LIU Tao;SHAO Zhicai;NIE Hong(Research Institute of Petroleum Processing,SINOPEC,Beijing 100083,China)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油学报（石油加工）》2020年第2期221-229,共9页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：中国石油化工股份有限公司合同项目(117001-3)资助。

摘　　要：针对催化裂化回炼油组成和加氢反应特点,创新提出了“虚拟组分”CH基团和CH 2基团的新概念,提出可以用CH基团和CH2基团间的加氢-脱氢可逆反应描述加氢过程中C、H变化规律,且构建了“虚拟组分”CH基团和CH2基团间的加氢-脱氢可逆反应动力学模型及加氢脱硫(HDS)和加氢脱氮(HDN)反应动力学模型。所建模型均为1级动力学模型,可同时预测加氢油中C、H、S、N等元素组成。模型构建过程中,以模型数据值与试验值间的总方差∑R^2作为目标值,所求模型参数较为准确。验证试验结果表明,该模型预测催化裂化回炼油的加氢油中C、H、S、N含量与实验值吻合度高。Based on the characteristics of composition and hydrogenation of FCC recycle oil,a new concept of virtual components CH and CH2 groups was proposed,which could be used to explain the change of C and H during the hydrogenation-dehydrogenation reversible processes.Moreover,the kinetic models of the hydrogenation-dehydrogenation,HDS,and HDN reactions were established.All three kinetic models are pseudo-first order reaction models,and can simultaneously predict the contents of C,H,S and N in the hydrogenation oil.In the process of constructing kinetic models,the sum of variance(R^2)between test data and model data is set as target value,and the parameters of the kinetic models are accurately calculated.In the verification test,the predicted contents of C,H,S and N obtained from the established kinetic models match well with the experimental data.

关 键 词：回炼油 不饱和烃 加氢 动力学 模型 

分 类 号：TE624[石油与天然气工程—油气加工工程]