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

作     者：Laleh Torab Maralani 袁希钢 罗祎青 龚超 余国琮 

作者机构：State Key Laboratory of Chemical Engineering School of Chemical Engineering and Technology Tianjin University 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2013年第21卷第1期

页      面：72-78页

核心收录：

学科分类：080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Supported by the State Key Fundamental Research Program(2012CB720500) 

主　　题：dividing wall column vapor split ratio operability 

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.