Study of the divided wall column controllability: influence of design and operation

被引：45

作者：

Serra, M ^{[1
]}

Perrier, M

Espuna, A

Puigjaner, L

机构：

[1] Univ Politecn Catalunya, Dept Chem Engn, E-08028 Barcelona, Spain

[2] Ecole Polytech, Dept Chem Engn, Montreal, PQ H3C 3A7, Canada

来源：

COMPUTERS & CHEMICAL ENGINEERING | 2000年 / 24卷 / 2-7期

关键词：

divided wall column; multicomponent distillation; design and controllability;

D O I：

10.1016/S0098-1354(00)80004-6

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The main objective of this work is to study the influence of design and operating conditions on the divided wall column (DWC) controllability. Firstly, two designs for which the total distillation cost is minimised are compared. For each design, different optimal reflux to minimum reflux ratio is assumed. Secondly, three non-optimal designs are compared with an optimal one. Adding trays to different column sections, the distribution of the distillation effort is changed. The effect of this change on the controllability is studied. The DWC has extra operation degrees of freedom and the operation that minimises the boilup is searched. The influence of the operating conditions over the controllability is studied comparing optimal and non-optimal nominal operations. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：901 / 907

页数：7

共 4 条

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[2]

SERRA M, 1997, ANN AICHE M

[3]

Skogestad S., 1996, Multivariable Feedback Control. Analysis and Design

[4] OPERATION OF INTEGRATED 3-PRODUCT (PETLYUK) DISTILLATION-COLUMNS [J].

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