Abstract: This paper describes a mathematical model and an algorithm which can be used for simulation of interlinked column systems consisting of liquid-liquid extraction and distillation. This algorithm is based upon Newton-Raphson iteration technique using suitable damping factors and solutions of a simplified version of model as initial values of exact calculations. With the exception of principlal specifications it is possible to exchange the iteration variables and/or noniteration variables with the design variables to meet requirements of design. A process of recovery of phenol from waste water is illustrated to verify the model and algorithm.

摘要： 本文提出了用于液液萃取与精馏塔网络模拟的数学模型和解法.此法采用牛顿-拉夫森迭代技术,结合适当的阻尼因子并用简化模型的解作为此严格计算的初值.模拟中除选用一组基本的设计变量外,还可将迭代变量或(和)非迭代变量与这些基本的设计变量互换,以满足设计要求.以从含酚污水中回收苯酚为实例说明了此严格计算法.结果是满意的.