基于MATLAB软件乙烯环氧化反应催化床层轴径向温度场动态模拟的探索与实践

Dynamic Simulation of Axial Radial Temperature Field of Ethylene Epoxidation in Catalytic Bed Based on MATLAB

"飞温"现象是固定床列管反应器设计及操作过程中需重点关注的问题.以乙烯环氧化反应的教学内容为素材,利用MALTAB软件求解反应器内的拟均相二维模型,模拟得床层温度场分布情况,并探究不同敏感因素对"热点"温度的影响规律.通过这样的教学实践,不但可以拓宽学生的数理运用范围,而且有利于培养学生利用MATLAB程序语言解决和处理化工生产实践问题的能力.

Special attention should be paid attention to flying temperature phenomenon when designing and operating fixed bed tubular reactors.In this paper,ethylene epoxidation reaction is adopted as teaching material.MATLAB software is used to solve two-dimensional pseudo-homogeneous model and to simulate distribution of the axial and radical temperature field in fixed bed tubular reactors,and to study the effect of different factor on the hot spot temperature.Through this kind of teaching practice,it not only broadens the scope of students’ mathematical application,but also trains students to use MATLAB programming language to solve and deal with the problem of chemical production practice,which benefit to enhance their ability of solve and deal with the problem.