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
收藏
页码：2777 / 2781
页数：5
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