双反应段精馏塔温度控制系统的综合与设计

双反应段精馏塔（RDC-DRS）具有十分复杂的稳态与动态特性，给温度控制系统的综合与设计带来极大困难。为解决这一问题，提出了一种基于稳态偏差最小原理的温度控制系统的综合与设计方法。该方法主要通过单变量搜索找到使稳态偏差达到最小值的被控塔板位置，进而设计出RDC-DRS温度控制系统。稳态偏差设计温度控制系统可以很好地体现产品浓度与温度之间的对应关系，从而设计出有效可行的温度控制方案。通过与常规灵敏度分析方法设计的温度控制系统的控制效果对比，证明了该方法可以实现对RDC-DRS产品质量的严格控制。

Synthesis and design of a temperature control system for a distillation column with double reactive sections

A distillation column with double reactive sections (RDC-DRS) exhibits very complicated steady-state and dynamic behaviors and this introduces great difficulties in the synthesis and design of a temperature control system. To address this issue, a simple method for the synthesis and design of a temperature control system is proposed based on the principle of the minimization of steady-state errors in product qualities. In this method, the controlled stages with the minimum steady-state error are found by a single variable search, and then the RDC-DRS temperature control system is designed. The temperature control system designed by this method closely reflects the relationship between the product concentration and the temperature and an effective and feasible temperature control system can thus be designed. By comparison with the conventional sensitivity analysis method, the proposed method is demonstrated to be capable of achieving higher product quality control of the RDC-DRS.