PX氧化反应器动态模型和4-CBA浓度的软测量  

Dynamic model of PX Oxidation Reactor and Soft-measurement of 4-CBA Content

作　　者：王丽军[1] 张宏健[1] 

机构地区：[1]浙江大学信息工程与科学学院,浙江杭州310027

出　　处：《化工自动化及仪表》2005年第4期22-25,共4页Control and Instruments in Chemical Industry

摘　　要：建立了PX氧化反应器的动态机理模型,模型能够较好地预测不同工艺条件下的4-CBA浓度。基于上述模型,对现有工艺过程进行了数值模拟,发现4-CBA浓度与尾气CO2浓度具有很强的相关性。通过数据回归得到了简化的4-CBA软测量模型,上述模型为现有PX氧化过程的4-CBA浓度实时控制提供了理论依据。A dynamic model of p-xylene （PX） oxidation reactor is presented, which is proved to be detailed enough to predict 4-CBA content in the different process conditions cases. Based on the model, simulation was carried out for existed industrial process, and the results indicate that they exist strong correlation between 4-CBA content and offgas CO2 concentration. The simplified 4-CBA soft-measurement model is gained by data regression ,which provided a base for 4-CBA real-time control.

关 键 词：PX 4-CBA 动态模型 软测量 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]