Sensitivity analysis to produce anhydrous ethanol using pressure-swing system

Detalhes bibliográficos
Autor(a) principal: Oliveira, Lucas Aparecido
Data de Publicação: 2022
Outros Autores: Cerqueira, Daniel Alves, Cardoso, Cássia Regina, Sousa, Nádia Guimarães
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/28386
Resumo: Pressure-swing distillation is used to separate azeotropic mixtures without the addition of chemical compounds to the system. The objective of the present work was to perform a sensitivity analysis for the system composed by two distillation columns to produce anhydrous ethanol. The used thermodynamic models were validated through experimental data. The simulations were performed using the free software COFE and ChemSep. The operation parameters were evaluated considering the release of practically pure water at the bottom of the low-pressure column, and a bottom release of anhydrous ethanol for the high-pressure column. The final configuration of the system was, for the high-pressure column: 37 stages, fed at stage 14, with a reflux ratio of 0.380. For the low-pressure column: 32 stages, with the feed stream and recycle positioned on trays 30 and 14, respectively, and a reflux ratio of 4.250. The results and the discussion clarify the operation of the column and add knowledge to the separation process.
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spelling Sensitivity analysis to produce anhydrous ethanol using pressure-swing systemAnálisis de sensibilidad de un sistema de destilación por alternancia de presiónAnálise de sensibilidade de um sistema de destilação por alternância de pressãoAnhidrous etanolThermodynamic modellingSimulation.Etanol AnhidroModelado TermodinámicoSimulación.Etanol anidroModelagem TermodinâmicaSimulação.Pressure-swing distillation is used to separate azeotropic mixtures without the addition of chemical compounds to the system. The objective of the present work was to perform a sensitivity analysis for the system composed by two distillation columns to produce anhydrous ethanol. The used thermodynamic models were validated through experimental data. The simulations were performed using the free software COFE and ChemSep. The operation parameters were evaluated considering the release of practically pure water at the bottom of the low-pressure column, and a bottom release of anhydrous ethanol for the high-pressure column. The final configuration of the system was, for the high-pressure column: 37 stages, fed at stage 14, with a reflux ratio of 0.380. For the low-pressure column: 32 stages, with the feed stream and recycle positioned on trays 30 and 14, respectively, and a reflux ratio of 4.250. The results and the discussion clarify the operation of the column and add knowledge to the separation process.La destilación por alternancia de presión se utiliza para separar mezclas azeotrópicas sin necesidad de añadir ninguna sustancia al sistema. El objetivo del presente trabajo fue realizar un análisis de sensibilidad de algunos parámetros de operación de dos columnas de destilación. Para tales análisis, los modelos termodinámicos utilizados fueron validados a través de datos experimentales. Las simulaciones se realizaron utilizando el software libre COFE y ChemSep. Los parámetros se evaluaron teniendo en cuenta, la salida de agua prácticamente pura por el fondo de la columna de baja presión, y una corriente de fondo de etanol anhidro saliendo de la columna de alta presión. Los resultados obtenidos concuerdan con los observados por varios investigadores. La configuración final del sistema encontrada fue, para la columna de alta presión: 37 etapas, alimentadas en la etapa 14 y con una relación de reflujo de 0,380. Para la columna de baja presión: 32 etapas, con la corriente de alimentación y recirculación posicionadas en los platos 30 y 14, respectivamente, y una relación de reflujo de 4.250. Los resultados y la discusión aclaran el funcionamiento de la columna y agregan conocimiento al proceso de separación.A destilação por alternância de pressão é utilizada para separar misturas azeotrópicas sem a necessidade de adição de nenhuma substância ao sistema. O objetivo do presente trabalho foi realizar a análise de sensibilidade de alguns parâmetros de operação das duas colunas envolvidas no processo. Para tais análises, os modelos termodinâmicos utilizados foram validados através de dados experimentais. As simulações foram feitas através dos softwares livres COFE e ChemSep. Os parâmetros foram avaliados levando em consideração, a saída de água praticamente pura no fundo da coluna de baixa pressão, e uma corrente de fundo de etanol anidro deixando a coluna de alta pressão. Os resultados obtidos vão de encontro ao observado por diversos pesquisadores.  A configuração final do sistema encontrada foi, para a coluna de alta pressão: 37 estágios, alimentada no estágio 14 e com uma razão de refluxo de 0,380. Para a coluna de baixa pressão: 32 estágios, com a corrente de alimentação e reciclo posicionados nos pratos 30 e 14, respectivamente, e uma razão de refluxo de 4,250. Os resultados e a discussão esclarecem o funcionamento da coluna e agregam conhecimento ao processo de separação.Research, Society and Development2022-04-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/2838610.33448/rsd-v11i5.28386Research, Society and Development; Vol. 11 No. 5; e48111528386Research, Society and Development; Vol. 11 Núm. 5; e48111528386Research, Society and Development; v. 11 n. 5; e481115283862525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/28386/24765Copyright (c) 2022 Lucas Aparecido Oliveira; Daniel Alves Cerqueira; Cássia Regina Cardoso; Nádia Guimarães Sousahttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessOliveira, Lucas AparecidoCerqueira, Daniel Alves Cardoso, Cássia Regina Sousa, Nádia Guimarães2022-04-17T18:18:56Zoai:ojs.pkp.sfu.ca:article/28386Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:45:48.846748Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
Análisis de sensibilidad de un sistema de destilación por alternancia de presión
Análise de sensibilidade de um sistema de destilação por alternância de pressão
title Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
spellingShingle Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
Oliveira, Lucas Aparecido
Anhidrous etanol
Thermodynamic modelling
Simulation.
Etanol Anhidro
Modelado Termodinámico
Simulación.
Etanol anidro
Modelagem Termodinâmica
Simulação.
title_short Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
title_full Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
title_fullStr Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
title_full_unstemmed Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
title_sort Sensitivity analysis to produce anhydrous ethanol using pressure-swing system
author Oliveira, Lucas Aparecido
author_facet Oliveira, Lucas Aparecido
Cerqueira, Daniel Alves
Cardoso, Cássia Regina
Sousa, Nádia Guimarães
author_role author
author2 Cerqueira, Daniel Alves
Cardoso, Cássia Regina
Sousa, Nádia Guimarães
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira, Lucas Aparecido
Cerqueira, Daniel Alves
Cardoso, Cássia Regina
Sousa, Nádia Guimarães
dc.subject.por.fl_str_mv Anhidrous etanol
Thermodynamic modelling
Simulation.
Etanol Anhidro
Modelado Termodinámico
Simulación.
Etanol anidro
Modelagem Termodinâmica
Simulação.
topic Anhidrous etanol
Thermodynamic modelling
Simulation.
Etanol Anhidro
Modelado Termodinámico
Simulación.
Etanol anidro
Modelagem Termodinâmica
Simulação.
description Pressure-swing distillation is used to separate azeotropic mixtures without the addition of chemical compounds to the system. The objective of the present work was to perform a sensitivity analysis for the system composed by two distillation columns to produce anhydrous ethanol. The used thermodynamic models were validated through experimental data. The simulations were performed using the free software COFE and ChemSep. The operation parameters were evaluated considering the release of practically pure water at the bottom of the low-pressure column, and a bottom release of anhydrous ethanol for the high-pressure column. The final configuration of the system was, for the high-pressure column: 37 stages, fed at stage 14, with a reflux ratio of 0.380. For the low-pressure column: 32 stages, with the feed stream and recycle positioned on trays 30 and 14, respectively, and a reflux ratio of 4.250. The results and the discussion clarify the operation of the column and add knowledge to the separation process.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-13
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/28386
10.33448/rsd-v11i5.28386
url https://rsdjournal.org/index.php/rsd/article/view/28386
identifier_str_mv 10.33448/rsd-v11i5.28386
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/28386/24765
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. 11 No. 5; e48111528386
Research, Society and Development; Vol. 11 Núm. 5; e48111528386
Research, Society and Development; v. 11 n. 5; e48111528386
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_ 1797052709795266560

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