New reflux policy for batch distillation

被引：1
作者：
Fujii, T
机构：
[1] Tokuyama, Yamaguchi 745-0831
来源：
KAGAKU KOGAKU RONBUNSHU | 2002年 / 28卷 / 04期
关键词：
separation process; batch distillation; reflux policy; optimal control; optimal design;
D O I：
10.1252/kakoronbunshu.28.386
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A new reflux policy for optimal operation was derived by examining theoretically the optimal operating conditions for batch distillation. The policy involves keeping the instantaneous minimum theoretical stages,using Fenske's equation constant by Controlling the reflux ratio, and it provides a reasonable operating method to maintain distillation column efficiency throughout the operation. A method for calculation of reflux ratio was derived for the new reflux policy using the McCabe Thiele calculation method for a no-holdup model, The theoretical new reflux policy was compared with the optimal reflux policy in the literature,which is solved by using economical data, and found to correlate well in terms of optimal hatch time, The new policy is simple and allows the optimal reflux ratio to be determined easily for given separation conditions.
引用
收藏
页码：386 / 390
页数：5
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