模拟非理想物系分离过程的联合算法

A Combined Simulation procedure for Sreparation Processes of Nonideal Systems

本文根据新松弛法对初值要求低、稳定性好而全组成牛顿拉夫森法收敛速度快,精度高的特点,采用适当的方式将这两种算法联合用于非理想物系分离过程的模拟计算。经过十七组精馏与吸收典型算例的考核,表明该联合算法兼具两者的优点。

A new combined simulation procedure is developed for multi-comp-onent separation processes of nonideal systems,based on the betterstability of the New Relaxation method.even in the case of poorinitial guesses and the higher rate.and accuracy of convergence of theNewton-Raphson algorithm.with liquid compositions as independentvariables.The calculated results of seventeen typical distillation andabsorption problems indicate that the combined procedure is of theadvantages of both the adopted methods.