基于内膜控制PID算法的MTBE催化精馏塔塔板温度控制仿真研究

甲基叔丁基醚（MTBE）工业生产是典型的催化精馏过程。生产实践证明，影响MTBE催化精馏过程的因素有很多，如塔板温度、回流比、甲醇（MEOH）进料位置、反应区、惰性组分等。为了提高MTBE产品质量，保证反应物的转化率，必须对其进行控制。该文以塔板温度为研究对象，采用内模控制的方法对其进行控制。仿真结果表明，与常规的PID控制模式相比，IMC-PID可以使塔的温度得到更良好的控制，有利于催化精馏过程的进行，对获得较高的异丁烯转化率是十分重要的。

The Simulation Study on Column Plate Temperature Control of MTBE Catalytic Distillation Column Based on IMC-PID Algorithm

Methyl Tertiary Butyl Ether （MTBE） industrial production is a typical catalytic distillation process. The practice has proved that many factors, such as the plate temperature, the reflux ratio and the location of the feed, the reaction zone, inert compo- nents of the methanol（MEOH ） can affect the production of MTBE catalytic distillation process, so the factors have to be controlled in order to improve the quality of MTBE products and ensure the conversion rate of reactants. In this paper, the author introduces how the internal model control method is used to control the tray temperature. In comparison with the conventional PID control mode, the simulation results show that the tower temperatures can be well controlled by using the internal model control-PID method, which is conducive to catalytic distillation process and very important to obtaining a higher conversion rate of isobutene.