苯加氢制环己烯反应器动态模拟及故障分析

Dynamic simulation and failure analysis of cyclohexene reactor in benzene hydrogenation system

建立了苯加氢反应制环己烯的反应器模型,借助动态模拟与分析系统平台DSAS实现了该反应的动态模拟。在充分了解工艺流程的基础上绘制仿真工艺流程图,根据仿真流程图完成工艺平台所需的信息输入,利用Visual C++编译出工艺模型并进行动态模拟。在程序中输入反应动力学并调试校正系数,使得模拟值与设计值一致,以验证模型的准确性。在建立的反应器动态模型上设立常见的进料量扰动、冷却水扰动及液位变化3个故障,通过动态模拟分析这些故障产生的后果。

A cyclohexene reactor model for benzene hydrogenation reaction is established. With the help of DSAS, a platform for dynamic simulation and analysis system, the dynamic simulation of the reaction process is facilitated. The simulation process flow diagram is drawn, and then process information is input according to the simulation flow chart. A model of the process is compiled with Visual C ＋ ＋ to run the program. The reaction kinetics is input into the program and model coefficient is corrected in order to make the simulation value consistent with the design value. Some disturbances of the reactor, including feed disturbance, cooling water disturbance and the change in liquid level are set in the dynamic model. Their consequences can be analyzed through dynamic simulation.