Study of the structural characteristics of a divided wall colunm using the sloppy distillation arrangement

Title
Study of the structural characteristics of a divided wall colunm using the sloppy distillation arrangement
Author(s)
이문용이승현쌈쑤쪼하[쌈쑤쪼하]한명완[한명완]김영한[김영한]
Keywords
THERMALLY COUPLED DISTILLATION; HEAT-INTEGRATED DISTILLATION; PETLYUK DISTILLATION; MULTICOMPONENT DISTILLATION; RETROFIT OPPORTUNITIES; APPROXIMATE DESIGN; COLUMNS; OPTIMIZATION; OPERATION; CONFIGURATIONS
Issue Date
201102
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.28, no.2, pp.348 - 356
Abstract
An efficient design method is proposed for determining the optimal design structure of a dividing wall column (DWC). The internal section of the DWC is divided into four separate sections and matched to the sloppy arrangement with three conventional simple columns. The light and heavy key component mole-fractions are used as the design variables in each column. The structure that gives superior energy efficiency in the shortcut sloppy case also brings superior energy efficiency in the DWC, while the optimal internal flow distribution of the DWC is different from that obtained from the sloppy configuration. Based upon an extensive simulation study, a two-step approach is proposed for the DWC design: the optimal DWC structure is first determined by applying the shortcut method to the sloppy configuration; the optimal internal flow distribution is then found from the corresponding DWC configuration. The simulation study shows that the DWC designed by the proposed method gives a near-optimal structure.
URI
http://hdl.handle.net/YU.REPOSITORY/25686http://dx.doi.org/10.1007/s11814-010-0364-7
ISSN
0256-1115
Appears in Collections:
공과대학 > 화학공학부 > Articles
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