Issues in Non-Equilibrium Reactive Distillation

摘要提案题目：非平衡反应蒸馏中的问题提案号：cts -0341608首席研究员：Lakshmi sridhar机构：波多黎各大学本项目的目的是对非平衡反应蒸馏过程的分析、设计、优化和控制进行基础研究。在非平衡反应精馏中产生多重稳态的原因和引起这些多重稳态的奇点的位置将被确定。非平衡反应精馏线图可用于在反应平衡极限下的设计/合成。动力学对可行分裂的影响将通过区分精馏级联和剥离级联以及确定相应方程的不动点来确定。将采用几种优化策略。托盘的数量，进料托盘的位置，每个托盘的持率，回流和沸腾，以及冷凝器和再沸器的职责，这两个非平衡非反应和非平衡反应分离过程将被优化。使用的两种优化策略将是：使用遗传算法求解混合整数非线性优化公式和通过标准的局部分支和定界算法（如广义bender分解）求解。通过多目标优化公式生成Pareto最优解也将被考虑。所开发的所有分析和算法/数值程序将在实际工业问题上进行测试。控制方面涉及非平衡反应性分离过程的非线性多变量控制策略的发展。将开发基于降阶和Volterra系列表示的控制器，并通过严格的动态研究测试其性能。就更广泛的影响而言，研究生和本科生都将参与该项目。将开设蒸馏设计的新课程。如果成功，这项工作可能导致处理工业分离中遇到的一类问题的一般方法。

AbstractProposal Title: Issues in Non-equilibrium Reactive DistillationProposal Number: CTS-0341608Principal Investigator: Lakshmi SridharInstitution: University of Puerto RicoThe objective of this project is to perform a fundamental investigation of the analysis, design, optimization and control of non-equilibrium reactive distillation processes. The causes of multiple steady states that occur in non-equilibrium reactive distillation and the location of the singularities that cause these multiple steady-states will be determined. Non-equilibrium reactive distillation line maps that can be used for design/synthesis in the limit of reaction equilibrium will be developed. The effects of kinetics on feasible splits will be determined by distinguishing between a rectifying and a stripping cascade and identifying the fixed points of the corresponding equations. Several optimization strategies will be pursued. The number of trays, feed tray locations, holdup per tray, reflux and boilup, and the condenser and reboiler duties for both non-equilibrium non-reactive and non-equilibrium reactive separation processes will be optimized. Two optimization strategies used will be: solution of mixed integer nonlinear optimization formulations using genetic algorithms and solution through standard local branch and bound algorithms such as Generalized Benders Decomposition. Generation of Pareto optimal solutions through multi-objective optimization formulations will also be considered. All the analysis and algorithmic/numerical procedures developed will be tested on real industrial problems. The control aspect involves the development of nonlinear multi-variable control strategies for non-equilibrium reactive separation processes. Controllers based on reduced order and Volterra series representations will be developed and their performance will be tested through rigorous dynamic studies. In terms of the broader impacts, both graduate and undergraduate students will be involved in the project. New courses in distillation design will be introduced. If successful, this work may lead to general methodologies for dealing with a class of problems encountered in industrial separations.