Kinetic Model and Simulation Analysis for Toluene Disproportionation and C9-Aromatics Transalkylation  

作　　者：徐欧官 苏宏业 计建炳 金晓明 褚健 

机构地区：[1]National Key Laboratory of Industrial Control Technology, Institute of Advanced Process Control, Zhejiang Uni-yersity, Hangzhou 310027, China [2]College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032,China

出　　处：《Chinese Journal of Chemical Engineering》2007年第3期326-332,共7页中国化学工程学报（英文版）

基　　金：Supported by the National＇Creative Research Groups Science Foundation of China （No.60421002） and priority supported financially by ＂the New Century 151 Talent Project＂ of Zhejiang Province.

摘　　要：A new kinetic model for commercial unit of toluene disproportionation and C9-armatiocs transalkylation is developed based on the reported reaction scheme.A time based catalyst deactivation function taking weight hourly space velocity(WHSV)into account is incorporated into the model,which reasonably accounts for the loss in activity because of coke deposition on the surface of catalyst during long-term operation.The kinetic parameters are benchmarked with several sets of balanced plant data and estimated by the differential variable metric optimiza- tion method.Sets of plant data at different operating conditions are applied to make sure validation of the model and the results show a good agreement between the model predictions and plant observations.The simulation analysis of key variables such as temperature and WHSV affecting process performance is discussed in detail,giv- ing the guidance to select suitable operating conditions.A new kinetic model for commercial unit of toluene disproportionation and C9-armatiocs transalkylation is developed based on the reported reaction scheme.A time based catalyst deactivation function taking weight hourly space velocity（WHSV）into account is incorporated into the model,which reasonably accounts for the loss in activity because of coke deposition on the surface of catalyst during long-term operation.The kinetic parameters are benchmarked with several sets of balanced plant data and estimated by the differential variable metric optimiza- tion method.Sets of plant data at different operating conditions are applied to make sure validation of the model and the results show a good agreement between the model predictions and plant observations.The simulation analysis of key variables such as temperature and WHSV affecting process performance is discussed in detail,giving the guidance to select suitable operating conditions.

关 键 词：toluene disproportionation and C9-armatiocs transalkylation kinetic model catalyst deactivation func-tion parameter estimation simulation analysis 

分 类 号：TQ241.12[化学工程—有机化工]