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 hourl...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.展开更多
介绍了中国石油化工股份有限公司金陵分公司0.6 M t/a对二甲苯装置的设计情况。歧化单元采用国产HAT-096型甲苯歧化与烷基化催化剂,吸附分离单元采用PAREX工艺,异构化单元采用SK I-400异构化催化剂;主要设备采用国外引进内件,国内生产...介绍了中国石油化工股份有限公司金陵分公司0.6 M t/a对二甲苯装置的设计情况。歧化单元采用国产HAT-096型甲苯歧化与烷基化催化剂,吸附分离单元采用PAREX工艺,异构化单元采用SK I-400异构化催化剂;主要设备采用国外引进内件,国内生产壳体的方案;采用加热炉对流段的热联合、单元内设备间的热联合、重沸炉集中供热、高温位热充分利用等节能措施。装置运行表明,达到了设计目标。展开更多
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.
文摘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.
文摘介绍了中国石油化工股份有限公司金陵分公司0.6 M t/a对二甲苯装置的设计情况。歧化单元采用国产HAT-096型甲苯歧化与烷基化催化剂,吸附分离单元采用PAREX工艺,异构化单元采用SK I-400异构化催化剂;主要设备采用国外引进内件,国内生产壳体的方案;采用加热炉对流段的热联合、单元内设备间的热联合、重沸炉集中供热、高温位热充分利用等节能措施。装置运行表明,达到了设计目标。
