自热回收精馏过程的优化与控制研究

项目名称： 自热回收精馏过程的优化与控制研究

项目编号： No.21476261

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 孙兰义

作者单位： 中国石油大学（华东）

项目金额： 80万元

中文摘要： 自热回收精馏是将自热回收技术应用于精馏过程，其充分利用体系进出物流的潜热及显热，可大幅度降低精馏能耗，而其强非线性、多变量耦合给系统整体调控和优化研究带来很大的挑战。本项目旨在对自热回收精馏过程进行系统研究，形成适用于自热回收精馏过程的优化方法及控制方案。利用[火用]分析和[火积]分析对自热回收精馏进行热力学评价，揭示自热回收精馏的节能原理；运用多目标模拟退火算法对自热回收精馏进行优化研究，分析自热回收精馏的多目标优化机理；采用传统PID控制与模型预测控制方法建立自热回收精馏过程的控制系统，探索最佳的自热回收精馏控制方案；以乙醇-水体系为例，理论与实验相互验证，以完善其设计及操作参数。本项目的成功可为自热回收精馏过程优化控制、工业放大和应用提供理论指导。

中文关键词： 精馏；自热回收；[火积]分析；过程优化；过程控制

英文摘要： Self-heat recuperation distillation (SHRD), which applies the self-heat recuperation technology to distillation process, facilitates recirculation of not only latent heat but also sensible heat in a process, and helps to reduce the energy consumption of the process. While the strong nonlinear structure and multiple variable coupling characteristics bring difficulties to the optimazition and control of the globle system. The project aims to propose the optimization method and control strategies. The exergy analysis and entransy analysis are used to reveal principles of energy savings in SHRD. The optimization is carried out using the multi-objective simulated annealing algorithm, which investigates the multi-objective optimization mechanism of SHRD. The traditional PID control method and model predictive control method are used to study the dynamic characteristics and explore the optimal control strategy for SHRD. To validate the theory and experimental results mutually, the separation of ethanol-water system is studied，which refines the design parameters of SHRD. The implementations of the project can provide the theoretical basis of optimization and control, as well as its industrial application.

英文关键词： distillation;self-heat recuperation;entransy analysis;process optimization;process control