The Dynamic Flexibility of Batch Exothermic Reaction System： Take into Account the Effect of the Initial Operational Temperature  

作　　者：周华 钱宇 李秀喜 崔健 Andrzej Kraslawski 

机构地区：[1]School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China [2]Department of Chemical Engineering, Lappeenranta University of Technology, FIN-53851 Lappeenranta, Finland

出　　处：《Chinese Journal of Chemical Engineering》2008年第6期916-922,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （20536020, 20876056）.

摘　　要：It is shown in this article that by changing the initial operation condition of the batch processes, the dynamic performance of the system can be varied largely, especially for the initial operational temperature of the exothermic reaction. The initial operation condition is often ignored in the designing batch processes for flexibility against disturbances or parameter variations. When the initial condition is not rigid as in the case of a batch reactor, where the initial reaction temperature is quite arbitrary, optimization can also be applied to determine the ＂best＂ initial condition to use. Problems for dynamic flexibility analysis of exothermic reaction including initial temperature and process operation can be formulated as dynamic optimization problems. Formulations are derived when the initial conditions are considered or not. When the initial conditions are considered, the initial condition can be transferred into control variables in the first optimal step. The solution of the dynamic optimization is on the basis of Rugge-Kutta integration algorithm and decomposition search algorithm. This method, as illustrated and tested with two highly nonlinear process problems, enables the determination of the optimal level. The dynamic performance is improved by the proposed method in the two exothermic reaction examples.它在这篇文章被显示出，特别为发热的反应的起始的运作的温度由改变批进程的起始的操作条件，系统的动态性能能大部分被改变。起始的操作条件经常对骚乱或参数变化为灵活性在设计的批过程被忽略。当在起始的反应温度是相当任意的的地方，起始的条件不作为在一个批反应堆的情况中僵硬时，优化能也被使用决定最好的起始的条件使用。为包括起始的温度和过程操作的发热的反应的动态灵活性分析的问题能作为动态优化问题被提出。当起始的条件被考虑时，明确的表达被导出。当起始的条件被考虑时，起始的条件能在第一个最佳的步骤被变成控制变量。动态优化的答案根据 Rugge-Kutta 集成算法和分解搜索算法。这个方法与二个高度非线性的过程问题说明了并且测试启用最佳的水平的决心。动态表演被建议方法在二个发热的反应例子改进。

关 键 词：batch process dynamic flexibility optimization exothermic reaction 

分 类 号：TQ02[化学工程] N94[自然科学总论—系统科学]