Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux

A short-cut method for batch distillation columns working at constant reflux was applied to solve a problem of four components that needed to be separated and purified to a mole fraction of 0.97 or better. Distillation columns with 10, 20, 30, 40, and 50 theoretical stages were used; reflux ratio wa...

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Main Authors: Asteria Narvaez-Garcia, Jose del Carmen Zavala-Loria, Luis Enrique Vilchis-Bravo, Jose Antonio Rocha-Uribe
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Engineering
Online Access:http://dx.doi.org/10.1155/2013/685969
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author Asteria Narvaez-Garcia
Jose del Carmen Zavala-Loria
Luis Enrique Vilchis-Bravo
Jose Antonio Rocha-Uribe
author_facet Asteria Narvaez-Garcia
Jose del Carmen Zavala-Loria
Luis Enrique Vilchis-Bravo
Jose Antonio Rocha-Uribe
author_sort Asteria Narvaez-Garcia
collection DOAJ
description A short-cut method for batch distillation columns working at constant reflux was applied to solve a problem of four components that needed to be separated and purified to a mole fraction of 0.97 or better. Distillation columns with 10, 20, 30, 40, and 50 theoretical stages were used; reflux ratio was varied between 2 and 20. Three quality indexes were used and compared: Luyben’s capacity factor, total annual cost, and annual profit. The best combinations of theoretical stages and reflux ratio were obtained for each method. It was found that the best combinations always required reflux ratios close to the minimum. Overall, annual profit was the best quality index, while the best combination was a distillation column with 30 stages, and reflux ratio’s of 2.0 for separation of benzene (i), 5.0 for the separation of toluene (ii), and 20 for the separation of ethylbenzene (iii) and purification of o-xylene (iv).
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series Journal of Engineering
spelling doaj-art-b967f27a1aa54492bdf9afd7f80378cc2025-08-20T02:23:28ZengWileyJournal of Engineering2314-49042314-49122013-01-01201310.1155/2013/685969685969Design of Batch Distillation Columns Using Short-Cut Method at Constant RefluxAsteria Narvaez-Garcia0Jose del Carmen Zavala-Loria1Luis Enrique Vilchis-Bravo2Jose Antonio Rocha-Uribe3Universidad Autonoma de Yucatan, (UADY), Periferico Norte km 33.5, 97203 Merida, YUC, MexicoUniversidad Autonoma del Carmen, (UNACAR), Calle 56 No. 4, Colonia Benito Juarez, 24180 Ciudad del Carmen, CAM, MexicoUniversidad Autonoma de Yucatan, (UADY), Periferico Norte km 33.5, 97203 Merida, YUC, MexicoUniversidad Autonoma de Yucatan, (UADY), Periferico Norte km 33.5, 97203 Merida, YUC, MexicoA short-cut method for batch distillation columns working at constant reflux was applied to solve a problem of four components that needed to be separated and purified to a mole fraction of 0.97 or better. Distillation columns with 10, 20, 30, 40, and 50 theoretical stages were used; reflux ratio was varied between 2 and 20. Three quality indexes were used and compared: Luyben’s capacity factor, total annual cost, and annual profit. The best combinations of theoretical stages and reflux ratio were obtained for each method. It was found that the best combinations always required reflux ratios close to the minimum. Overall, annual profit was the best quality index, while the best combination was a distillation column with 30 stages, and reflux ratio’s of 2.0 for separation of benzene (i), 5.0 for the separation of toluene (ii), and 20 for the separation of ethylbenzene (iii) and purification of o-xylene (iv).http://dx.doi.org/10.1155/2013/685969
spellingShingle Asteria Narvaez-Garcia
Jose del Carmen Zavala-Loria
Luis Enrique Vilchis-Bravo
Jose Antonio Rocha-Uribe
Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
Journal of Engineering
title Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
title_full Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
title_fullStr Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
title_full_unstemmed Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
title_short Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
title_sort design of batch distillation columns using short cut method at constant reflux
url http://dx.doi.org/10.1155/2013/685969
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