基于18集总动力学模型的连续重整反应装置建模与仿真  

Modeling and simulation of continuous catalytic reforming reactor based on a 18-lumped kinetic model

作　　者：李斌[1] 郭颖[1] 黄杉 胡浩威[1] 张蒙蒙[1] 方鲁杰 王立冬[1] 

机构地区：[1]辽宁石油化工大学信息与控制工程学院,辽宁抚顺113001 [2]中国石油管道分公司中原输油气分公司,山东泰安271012

出　　处：《化工科技》2015年第4期30-33,共4页Science & Technology in Chemical Industry

摘　　要：针对连续重整反应过程较为复杂、化学反应的耦合性强及参数估计难度较大的问题,提出了一种包含18个集总组分,27个反应的新型催化重整动力学模型。该模型在符合催化重整反应机理与集总理论划分原则的基础上,通过合理集总划分降低参数估计难度。新模型将8碳芳烃组分细分为二甲苯和乙苯2个集总,并将正烷烃、异烷烃分别集总,采用BFGS算法求解相应的模型参数。结果表明,该模型可以较为准确的预测出各芳烃产率,预测结果符合现代工业对模型的要求。A new kinetic model involving 18 lumped components and 27 reactions is proposed in this paper to resolve the problem that the continuous reforming reaction process is relatively complex,parameter estimation is difficult and chemical reaction coupling is strong.Based on catalytic reforming reaction mechanisms and lumping theory,the model reduces the difficulty of parameter estimation by reasonable lumped.The new model divided into xylene and ethylbenzene and lumped normal-paraffin and iso-paraffin.An iteration method of BFGS was implement to solve the corresponding model parameters.And the simulation result showed that the model successfully predicted the reformate composition in the reactor and was proved to be able to meet the accurate requirement of the industrial applications.

关 键 词：催化重整 集总 动力学模型 参数估计 

分 类 号：TE624.42[石油与天然气工程—油气加工工程]