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

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

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

过程系统工程与过程安全 | Updated：2026-01-06

- Numerical Investigation on Effect of Vapor Split Ratio to Performance and Operability for Dividing Wall Column
- Chinese Journal of Chemical Engineering Vol. 21, Issue 1, Pages: 72-781004-954160443-7(2013)
- Affiliations：
  
  State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60443-7
  CLC：
- Published：2013
- Accepted：
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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.
DOI：

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. DOI： 10.1016/S1004-9541(13)60443-7.

摘要

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.

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