Integrated analysis of coupled separation operations

被引：6
|
作者：
El-Rifai, MA [1 ]
Ettouney, RS [1 ]
机构：
[1] Cairo Univ, Fac Engn, Giza 12211, Egypt
来源：
CHEMICAL ENGINEERING SCIENCE | 1999年 / 54卷 / 12期
关键词：
absorption; extraction; stripping; integrated process design;
D O I：
10.1016/S0009-2509(98)00542-9
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
An integrated system analysis model is developed for processes involving two interacting countercurrent separation cascades coupled through a single-solvent circulation loop. The overall process model reveals interesting trends characterizing the dependence of the strippant (energy) required for achieving a given solute fractional recovery on the system design and operating variables. There is a minimum solvent circulation rate corresponding to infinite stripping agent requirements. The stripping agent requirements are minimized at an optimum solvent circulation rate and an optimum partition of the total system separation capacity between the two cascades. The developed rational design optimization method is compared with existing rule of thumb approach to the process design of coupled separation operations. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：1891 / 1902
页数：12
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