Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

doi:10.1016/S1004-9541(13)60443-7

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (1): 72-78.DOI: 10.1016/S1004-9541(13)60443-7

• 过程系统工程与过程安全 • 上一篇下一篇

Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

Laleh Torab Maralani, 袁希钢, 罗祎青, 龚超, 余国琮

State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

收稿日期:2012-06-09 修回日期:2012-08-02 出版日期:2013-02-28 发布日期:2013-02-04
通讯作者: YUAN Xigang
基金资助:
Supported by the State Key Fundamental Research Program (2012CB720500).

Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

Laleh Torab Maralani, YUAN Xigang, LUO Yiqing, GONG Chao, YU Guocong

State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Received:2012-06-09 Revised:2012-08-02 Online:2013-02-28 Published:2013-02-04
Supported by:
Supported by the State Key Fundamental Research Program (2012CB720500).

摘要/Abstract

摘要： Operability problem of dividing wall column (DWC) raised by vapor split was investigated by numerically analyzing four cases defined by different compositions of a three-component mixture. DWCs were firstly designed for each case by optimizing the vapor split to the two sides of the dividing wall, and then their feasibilities and total annual costs in operation were evaluated against different vapor split ratios. The analysis on the operability of the DWC for four cases was made based on two scenarios: (1) vapor split is shifted by the vapor resistance difference between the column sections in the two sides of the dividing wall and (2) the feed composition is changed. It was demonstrated that the positioning of the dividing wall and the decision on the vapor split may affect significantly the operability of a DWC.

关键词: dividing wall column, vapor split ratio, operability

Abstract: Operability problem of dividing wall column (DWC) raised by vapor split was investigated by numerically analyzing four cases defined by different compositions of a three-component mixture. DWCs were firstly designed for each case by optimizing the vapor split to the two sides of the dividing wall, and then their feasibilities and total annual costs in operation were evaluated against different vapor split ratios. The analysis on the operability of the DWC for four cases was made based on two scenarios: (1) vapor split is shifted by the vapor resistance difference between the column sections in the two sides of the dividing wall and (2) the feed composition is changed. It was demonstrated that the positioning of the dividing wall and the decision on the vapor split may affect significantly the operability of a DWC.

Key words: dividing wall column, vapor split ratio, operability

Laleh Torab Maralani, 袁希钢, 罗祎青, 龚超, 余国琮 . Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column[J]. Chinese Journal of Chemical Engineering, 2013, 21(1): 72-78.

Laleh Torab Maralani, YUAN Xigang, LUO Yiqing, GONG Chao, YU Guocong. Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column[J]. Chin.J.Chem.Eng., 2013, 21(1): 72-78.

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Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column

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