A New Computation Method for Multicomponent Distillation Columns

李鑫钢; 杜英生; 余国琮

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A New Computation Method for Multicomponent Distillation Columns

更新时间：2025-12-16

- A New Computation Method for Multicomponent Distillation Columns
- CIESC Journal Issue 2, (1988)
- 作者机构：
  
  天津大学化学工程研究所,天津大学化学工程研究所,天津大学化学工程研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 April 1988，
  
  Published：25 April 1988
- 稿件说明：
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李鑫钢, 杜英生, 余国琮. A New Computation Method for Multicomponent Distillation Columns[J]. CIESC Journal, 1988, (2).
DOI：

李鑫钢, 杜英生, 余国琮. A New Computation Method for Multicomponent Distillation Columns[J]. CIESC Journal, 1988, (2). DOI：

摘要

本文应用Newton-Raphson技术求解精馏计算的三对角线物料平衡方程组.提出了一种新的块状三对角线矩阵法.本方法具有程序简单

对初值的选择要求不高

占用计算机内存少

计算偏导数少和快速稳定收敛等特点.

Abstract

A new computation procedure is proposed for multicomponent distillation columns processing non-ideal solutions. The Newton-Raphson method in whichliquid mole fractions are chosen as independent variables is used to solve the tridiagonal matrix equation

and a block tridiagonal matrix algorithm is developed. Successful applications of the new method to some non-ideal distillation systems are demonstrated with features of more insensitiveness to the initial values fewer C. P. U. memories

fewer partial derivatives more rapid and more stable than others.

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