LAPSE:2023.34939
Published Article
LAPSE:2023.34939
Exergy Load Distribution Analysis Applied to the Dehydration of Ethanol by Extractive Distillation
April 28, 2023
This study presents the analysis of the exergy load distribution in a separation process by extractive distillation for ethanol dehydration. The methodology carried out is divided into three parts: the calculation of the flow exergy considering the physical and chemical exergies of the distillation process; the calculation of the primary and transformed exergy contributions considering the consumed exergy; and finally, the overall process efficiency, which shows the real percentage of energy being used in the process. The simulation of an extractive distillation separation system is carried out using Aspen Plus®, from Aspen Tech Version 9. In general, heat transfer processes (heating or cooling) are the ones that generate the greatest exegetic destruction, which is why they must be the operations that must be optimized. As a result of our case study, the local exergy efficiency of the extractive distillation column is 13.80%, which is the operation with the greatest energy loss, and the overall exergy efficiency of the separation system is 30.67%. Then, in order to increase exergy efficiency, a sensitivity analysis is performed with the variation of the azeotrope feed, number of stages, reflux ratio, and solvent feed variation on ethanol purity to reach an overall efficiency of 33.53%. The purity of ethanol is classified as higher than that of the specified, 99.65%.
Record ID
Keywords
dehydration of ethanol, Exergy Efficiency, exergy load distribution, extractive distillation
Subject
Suggested Citation
Guerrero-Martin CA, Fernández-Ramírez JS, Arturo-Calvache JE, Milquez-Sanabria HA, da Silva Fernandes FA, Costa Gomes VJ, Lima e Silva W, Dutra Valente Duarte E, Guerrero-Martin LE, Lucas EF. Exergy Load Distribution Analysis Applied to the Dehydration of Ethanol by Extractive Distillation. (2023). LAPSE:2023.34939
Author Affiliations
Guerrero-Martin CA: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca [ORCID]
Fernández-Ramírez JS: Departamento de Ingeniería Química y Ambiental, Universidad Nacional de Colombia, Bogotá 111321, Colombia [ORCID]
Arturo-Calvache JE: Departamento de Ingeniería Química y Ambiental, Fundación Universidad de América, Bogotá 111221, Colombia [ORCID]
Milquez-Sanabria HA: Departamento de Ingeniería Química y Ambiental, Fundación Universidad de América, Bogotá 111221, Colombia [ORCID]
da Silva Fernandes FA: Department of Engineering, Federal University of Pará—Campus Salinópolis, Rua Raimundo Santana Cruz, 9 S/N, Bairro São Tomé, Salinópolis 68721-000, Brazil [ORCID]
Costa Gomes VJ: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Lima e Silva W: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Dutra Valente Duarte E: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Guerrero-Martin LE: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil
Lucas EF: Metallurgical and Materials Engineering Program/COPPE/LADPOL, Federal University of Rio de Janeiro, Av. Horácio Macedo, 2030, Bloco F, Rio de Janeiro 21941-598, Brazil; Institute of Macromolecules/LMCP, Federal University of Rio de Janeiro, Rua Moniz Ara
Fernández-Ramírez JS: Departamento de Ingeniería Química y Ambiental, Universidad Nacional de Colombia, Bogotá 111321, Colombia [ORCID]
Arturo-Calvache JE: Departamento de Ingeniería Química y Ambiental, Fundación Universidad de América, Bogotá 111221, Colombia [ORCID]
Milquez-Sanabria HA: Departamento de Ingeniería Química y Ambiental, Fundación Universidad de América, Bogotá 111221, Colombia [ORCID]
da Silva Fernandes FA: Department of Engineering, Federal University of Pará—Campus Salinópolis, Rua Raimundo Santana Cruz, 9 S/N, Bairro São Tomé, Salinópolis 68721-000, Brazil [ORCID]
Costa Gomes VJ: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Lima e Silva W: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Dutra Valente Duarte E: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil; Department of Engineering, Federal University of Pará—Ca
Guerrero-Martin LE: LOTEP—Laboratório de Operações e Tecnologias Energéticas Aplicadas na Indústria do Petróleo, Faculty of Petroleum Engineering, Federal University of Pará, Salinópolis 66075-110, Brazil
Lucas EF: Metallurgical and Materials Engineering Program/COPPE/LADPOL, Federal University of Rio de Janeiro, Av. Horácio Macedo, 2030, Bloco F, Rio de Janeiro 21941-598, Brazil; Institute of Macromolecules/LMCP, Federal University of Rio de Janeiro, Rua Moniz Ara
Journal Name
Energies
Volume
16
Issue
8
First Page
3502
Year
2023
Publication Date
2023-04-18
Published Version
ISSN
1996-1073
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PII: en16083502, Publication Type: Journal Article
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LAPSE:2023.34939
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doi:10.3390/en16083502
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Apr 28, 2023
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