Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent

Detalhes bibliográficos
Autor(a) principal: Souza, Alvaro Eduardo Costa
Data de Publicação: 2021
Outros Autores: Cerqueira, Daniel Alves, Sousa, Nádia Guimarães, Cardoso, Cássia Regina
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/14228
Resumo: Anhydrous ethanol is a product with a minimum ethanol content of 99,5% molar, it is used as a solvent, precursor to chemical compounds, and can be mixed to gasoline when used as a fuel. The separation of the ethanol/water mixture by fractional distillation is limited to 88% molar of ethanol due to the formation of an azeotrope, which hinders the production of anhydrous ethanol. Alternative distillation methods are used, highlighting the extractive distillation, which consists of the introduction of a high boiling point extraction agent, capable of absorbing and dragging the water to the base of the column, anhydrous ethanol is obtained as a distillate. This work proposes a simulation in the free software ChemSep of the extractive distillation process to obtain anhydrous ethanol using ethylene glycol as an extracting agent for 70% and 100% stage efficiency. An analysis of the process parameters was performed, such as the number of total stages, feeding stage of the azeotropic mixture and of the solvent, reflux ratio and feeding temperature of the solvent and azeotropic mixture, aiming to find the most efficient conditions. As a result, for 100% efficiency, a column with 20 total stages was obtained, with the azeotropic mixture being introduced in stage 10 and the solvent in stage 3, at temperatures of 25°C and 70°C respectively, with a reflux ratio of 1.1. A higher number of stages and a higher reflux ratio were necessary to obtain the same concentration of ethanol in the distillate for 70% stage efficiency.
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spelling Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agentSimulación del proceso de destilación extractiva para la producción de etanol anhidro utilizando etilenglicol como separadorSimulação do processo de destilação extrativa para produção de etanol anidro utilizando etilenoglicol como agente de separaçãoDestilación extractivaSimulaciónEtanol anhidro.Destilação extrativaSimulaçãoEtanol anidro.Extractive distillationSimulationAnhydrous ethanol.Anhydrous ethanol is a product with a minimum ethanol content of 99,5% molar, it is used as a solvent, precursor to chemical compounds, and can be mixed to gasoline when used as a fuel. The separation of the ethanol/water mixture by fractional distillation is limited to 88% molar of ethanol due to the formation of an azeotrope, which hinders the production of anhydrous ethanol. Alternative distillation methods are used, highlighting the extractive distillation, which consists of the introduction of a high boiling point extraction agent, capable of absorbing and dragging the water to the base of the column, anhydrous ethanol is obtained as a distillate. This work proposes a simulation in the free software ChemSep of the extractive distillation process to obtain anhydrous ethanol using ethylene glycol as an extracting agent for 70% and 100% stage efficiency. An analysis of the process parameters was performed, such as the number of total stages, feeding stage of the azeotropic mixture and of the solvent, reflux ratio and feeding temperature of the solvent and azeotropic mixture, aiming to find the most efficient conditions. As a result, for 100% efficiency, a column with 20 total stages was obtained, with the azeotropic mixture being introduced in stage 10 and the solvent in stage 3, at temperatures of 25°C and 70°C respectively, with a reflux ratio of 1.1. A higher number of stages and a higher reflux ratio were necessary to obtain the same concentration of ethanol in the distillate for 70% stage efficiency.El etanol anhidro es un producto con un contenido mínimo de etanol del 99,5% molar, tiene aplicaciones como solvente, precursor de compuestos químicos, además de agregarse a la gasolina para uso en medios de transporte. La separación de la mezcla de etanol/agua por destilación fraccionada está limitada al molar de etanol del 88% debido a la formación de un azeótropo, que impide la producción de etanol anhidro. Se utilizan métodos alternativos de destilación, destacando la destilación extractiva, que consiste en la introducción de un agente extractor de alto punto de ebullición, capaz de absorber y realizar el arrastre de agua a la base de la columna, etanol anhidro se obtiene como destilado. Este trabajo propone una simulación en software libre de ChemSep del proceso de destilación extractiva para obtención etanol anhidro utilizando etilenglicol como agente extractor para la eficiencia de las etapas de 70% y 100%. Se realizaron análisis de parámetros del proceso como el número de etapas totales, la etapa de alimentación de la mezcla azeotrópica y del solvente, relación de reflujo y la temperatura de alimentación del solvente y mezcla azeotrópica, con el fin de encontrar las condiciones de mayor eficiencia. Como resultado, para una eficiencia del 100%, se obtuvo una columna con 20 etapas totales, con la mezcla de azeotrópicos que se introdujo en la etapa 10 y el solvente en la etapa 3, a temperaturas de 25°C y 70°C, respectivamente, con una relación de reflujo de 1,1. Se encontró la necesidad de un mayor número de etapas y relación de reflujo para obtener la misma concentración de etanol en el destilado para una eficiencia del 70%.O etanol anidro é um produto com teor mínimo de 99,5% molar de etanol, possui aplicações como solvente, precursor de compostos químicos, além de poder ser adicionado à gasolina para uso como combustível. A separação da mistura etanol/água por destilação fracionada é limitada a 88% molar de etanol devido à formação de um azeótropo, o que impede a produção de etanol anidro. Métodos alternativos de destilação são utilizados, destacando-se a destilação extrativa, que consiste na introdução de um agente extrator de alto ponto de ebulição, capaz de absorver e realizar o arraste da água para a base da coluna, o etanol anidro é obtido como destilado. Este trabalho propõe uma simulação no software livre ChemSep do processo de destilação extrativa para obtenção de etanol anidro utilizando etilenoglicol como agente extrator para eficiência dos estágios de 70% e 100%. Foram realizadas análises de parâmetros do processo como o número de estágios totais, estágio de alimentação da mistura azeotrópica e do solvente, razão de refluxo e temperatura de alimentação do solvente e da mistura azeotrópica; buscando encontrar as condições de maior eficiência. Como resultado, para eficiência de 100%, obteve-se uma coluna com 20 estágio totais, com a mistura azeotrópica sendo introduzida no estágio 10 e o solvente no estágio 3, nas temperaturas de 25°C e 70°C respectivamente, com razão de refluxo de 1,1. Constatou-se a necessidade de um número maior de estágios e de razão de refluxo para obtenção de mesma concentração de etanol no destilado para 70% de eficiência.Research, Society and Development2021-04-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1422810.33448/rsd-v10i4.14228Research, Society and Development; Vol. 10 No. 4; e45610414228Research, Society and Development; Vol. 10 Núm. 4; e45610414228Research, Society and Development; v. 10 n. 4; e456104142282525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/14228/12885Copyright (c) 2021 Alvaro Eduardo Costa Souza; Daniel Alves Cerqueira; Nádia Guimarães Sousa; Cássia Regina Cardosohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSouza, Alvaro Eduardo Costa Cerqueira, Daniel AlvesSousa, Nádia GuimarãesCardoso, Cássia Regina2021-04-25T11:21:26Zoai:ojs.pkp.sfu.ca:article/14228Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:35:24.035567Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
Simulación del proceso de destilación extractiva para la producción de etanol anhidro utilizando etilenglicol como separador
Simulação do processo de destilação extrativa para produção de etanol anidro utilizando etilenoglicol como agente de separação
title Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
spellingShingle Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
Souza, Alvaro Eduardo Costa
Destilación extractiva
Simulación
Etanol anhidro.
Destilação extrativa
Simulação
Etanol anidro.
Extractive distillation
Simulation
Anhydrous ethanol.
title_short Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
title_full Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
title_fullStr Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
title_full_unstemmed Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
title_sort Simulation of the extractive distillation process to produce anhydrous ethanol using ethylene glycol as a separating agent
author Souza, Alvaro Eduardo Costa
author_facet Souza, Alvaro Eduardo Costa
Cerqueira, Daniel Alves
Sousa, Nádia Guimarães
Cardoso, Cássia Regina
author_role author
author2 Cerqueira, Daniel Alves
Sousa, Nádia Guimarães
Cardoso, Cássia Regina
author2_role author
author
author
dc.contributor.author.fl_str_mv Souza, Alvaro Eduardo Costa
Cerqueira, Daniel Alves
Sousa, Nádia Guimarães
Cardoso, Cássia Regina
dc.subject.por.fl_str_mv Destilación extractiva
Simulación
Etanol anhidro.
Destilação extrativa
Simulação
Etanol anidro.
Extractive distillation
Simulation
Anhydrous ethanol.
topic Destilación extractiva
Simulación
Etanol anhidro.
Destilação extrativa
Simulação
Etanol anidro.
Extractive distillation
Simulation
Anhydrous ethanol.
description Anhydrous ethanol is a product with a minimum ethanol content of 99,5% molar, it is used as a solvent, precursor to chemical compounds, and can be mixed to gasoline when used as a fuel. The separation of the ethanol/water mixture by fractional distillation is limited to 88% molar of ethanol due to the formation of an azeotrope, which hinders the production of anhydrous ethanol. Alternative distillation methods are used, highlighting the extractive distillation, which consists of the introduction of a high boiling point extraction agent, capable of absorbing and dragging the water to the base of the column, anhydrous ethanol is obtained as a distillate. This work proposes a simulation in the free software ChemSep of the extractive distillation process to obtain anhydrous ethanol using ethylene glycol as an extracting agent for 70% and 100% stage efficiency. An analysis of the process parameters was performed, such as the number of total stages, feeding stage of the azeotropic mixture and of the solvent, reflux ratio and feeding temperature of the solvent and azeotropic mixture, aiming to find the most efficient conditions. As a result, for 100% efficiency, a column with 20 total stages was obtained, with the azeotropic mixture being introduced in stage 10 and the solvent in stage 3, at temperatures of 25°C and 70°C respectively, with a reflux ratio of 1.1. A higher number of stages and a higher reflux ratio were necessary to obtain the same concentration of ethanol in the distillate for 70% stage efficiency.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/14228
10.33448/rsd-v10i4.14228
url https://rsdjournal.org/index.php/rsd/article/view/14228
identifier_str_mv 10.33448/rsd-v10i4.14228
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/14228/12885
dc.rights.driver.fl_str_mv https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 10 No. 4; e45610414228
Research, Society and Development; Vol. 10 Núm. 4; e45610414228
Research, Society and Development; v. 10 n. 4; e45610414228
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052674718302208

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