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The Study of Structure Design for Dividing Wall Distillation Column  

Lee, Seung Hyun (School of Chem. Eng. & Tech, Yeungnam University)
Lee, Moon Yong (School of Chem. Eng. & Tech, Yeungnam University)
Publication Information
Korean Chemical Engineering Research / v.45, no.1, 2007 , pp. 39-45 More about this Journal
Abstract
This paper proposed a shortcut method for the structure design of dividing wall column based on the Fen-ske-Underwood equation by applying it on three conventional simple column configuration. It is shown that the proposed shortcut method can design the column structure including the feed tray, dividing wall section, and side-stream tray in a simple and efficient way in the initial design stage. Simulation study using HYSYS to compare the energy saving performance between the conventional sequential two column system and the dividing wall column designed by the proposed method shows that the proposed dividing wall column system saves from 16% to 65% more over the condepends on the composition of intermediate component while the optimal energy consumption pattern to internal flow distribution on the dividing wall section is characterized by the ESI factor of the feed mixture.
Keywords
Dividing Wall Column; Internal Flow; Structure Design; Energy Saving; Thermally Coupled Distillation;
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