Optimal retrofit of a side stream column to a dividing wall column for energy efficiency maximization

Title
Optimal retrofit of a side stream column to a dividing wall column for energy efficiency maximization
Author(s)
이문용구웬롱
Keywords
DISTILLATION-COLUMNS; PURIFICATION PROCESS; DESIGN; OPTIMIZATION; PETLYUK; SYSTEMS; METHODOLOGY; MODEL; DWC
Issue Date
201312
Publisher
INST CHEMICAL ENGINEERS
Citation
CHEMICAL ENGINEERING RESEARCH & DESIGN, v.91, no.12, pp.2291 - 2298
Abstract
A side distillation column is widely used to separate multicomponent mixtures into three products. However, this kind of column consumes considerable amounts of energy due to thermodynamic restrictions and the nature of the distillation process. Retrofit of the side distillation column to a dividing wall column (DWC) can result in significant energy savings. This study evaluated a systematic method for optimal retrofit of a side stream column to a DWC. The minimum energy requirement for the separation of a multicomponent mixture was used for a feasibility study. Subsequently, design and optimization was performed using shortcut, rigorous and response surface methodology. One case study was illustrated to demonstrate the proposed methodology. The results showed that the optimal retrofit of a side distillation column to the DWC could not only save a significant amount of energy, but also increase the capacity. This study highlights the potential for retrofitting a side stream column to a DWC from a techno economic point of view. (C) 2013 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/28173http://dx.doi.org/10.1016/j.cherd.2013.04.003
ISSN
0263-8762
Appears in Collections:
공과대학 > 화학공학부 > Articles
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