Evolution of pinch-point zones in multicomponent distillation columns .1. Rectifying section

被引：2

作者：

Zhicai, Y ^{[1
]}

Di, W ^{[1
]}

Yang, ZX ^{[1
]}

Zhang, RL ^{[1
]}

机构：

[1] DAQING OILFIELD CONSTRUCT DESIGN & RES INST,DAQING 163712,PEOPLES R CHINA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1996年 / 35卷 / 08期

关键词：

D O I：

10.1021/ie950697a

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The principles concerning the evolution of pinch-point zones with variation of the reflux ratio in the rectifying section of a multicomponent distillation column with an infinite number of stages are presented in this work. Analytical formulas are obtained for calculating the pinch-point zones as well as the distillate exactly. It has been found that the evolution of pinch-point zones in the stripping section is much similar to the evolution of pinch-point zones in the rectifying section. Based on these new findings, a new method for calculating the minimum reflux ratio of multicomponent continuous distillation, as well as a new shortcut method for the design calculation of a batch distillation process, can be developed.

引用

页码：2777 / 2781

页数：5

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