Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000100021 |
Resumo: | The aim of this work is to simulate and analyze an extractive distillation process for azeotropic ethanol dehydration with ethylene glycol and calcium chloride mixture as entrainer. The work was developed with Aspen Plus® simulator version 11.1. Calculation of the activity coefficients employed to describe vapor liquid equilibrium of ethanol - water - ethylene glycol - calcium chloride system was done with the NRTL-E equation and they were validated with experimental data. The dehydration process used two columns: the main extractive column and the recovery column. The solvent to feed molar ratio S/F=0.3, molar reflux ratio RR=0.35, number of theoretical stages Ns=18, feed stage Sf=12, feed solvent stage SS=3, and feed solvent temperature TS=80 ºC, were determined to obtain a distillate with at least 99.5 % mole of ethanol. A substantial reduction in the energy consumption, compared with the conventional processes, was predicted by using ethylene glycol and calcium chloride as entrainer. |
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Brazilian Journal of Chemical Engineering |
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Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulationSimulationExtractive distillationEthylene glycolCalcium chlorideThe aim of this work is to simulate and analyze an extractive distillation process for azeotropic ethanol dehydration with ethylene glycol and calcium chloride mixture as entrainer. The work was developed with Aspen Plus® simulator version 11.1. Calculation of the activity coefficients employed to describe vapor liquid equilibrium of ethanol - water - ethylene glycol - calcium chloride system was done with the NRTL-E equation and they were validated with experimental data. The dehydration process used two columns: the main extractive column and the recovery column. The solvent to feed molar ratio S/F=0.3, molar reflux ratio RR=0.35, number of theoretical stages Ns=18, feed stage Sf=12, feed solvent stage SS=3, and feed solvent temperature TS=80 ºC, were determined to obtain a distillate with at least 99.5 % mole of ethanol. A substantial reduction in the energy consumption, compared with the conventional processes, was predicted by using ethylene glycol and calcium chloride as entrainer.Brazilian Society of Chemical Engineering2008-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000100021Brazilian Journal of Chemical Engineering v.25 n.1 2008reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322008000100021info:eu-repo/semantics/openAccessGil,I. D.Uyazán,A. M.Aguilar,J. L.Rodríguez,G.Caicedo,L. A.eng2008-04-28T00:00:00Zoai:scielo:S0104-66322008000100021Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2008-04-28T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
title |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
spellingShingle |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation Gil,I. D. Simulation Extractive distillation Ethylene glycol Calcium chloride |
title_short |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
title_full |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
title_fullStr |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
title_full_unstemmed |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
title_sort |
Separation of ethanol and water by extractive distillation with salt and solvent as entrainer: process simulation |
author |
Gil,I. D. |
author_facet |
Gil,I. D. Uyazán,A. M. Aguilar,J. L. Rodríguez,G. Caicedo,L. A. |
author_role |
author |
author2 |
Uyazán,A. M. Aguilar,J. L. Rodríguez,G. Caicedo,L. A. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Gil,I. D. Uyazán,A. M. Aguilar,J. L. Rodríguez,G. Caicedo,L. A. |
dc.subject.por.fl_str_mv |
Simulation Extractive distillation Ethylene glycol Calcium chloride |
topic |
Simulation Extractive distillation Ethylene glycol Calcium chloride |
description |
The aim of this work is to simulate and analyze an extractive distillation process for azeotropic ethanol dehydration with ethylene glycol and calcium chloride mixture as entrainer. The work was developed with Aspen Plus® simulator version 11.1. Calculation of the activity coefficients employed to describe vapor liquid equilibrium of ethanol - water - ethylene glycol - calcium chloride system was done with the NRTL-E equation and they were validated with experimental data. The dehydration process used two columns: the main extractive column and the recovery column. The solvent to feed molar ratio S/F=0.3, molar reflux ratio RR=0.35, number of theoretical stages Ns=18, feed stage Sf=12, feed solvent stage SS=3, and feed solvent temperature TS=80 ºC, were determined to obtain a distillate with at least 99.5 % mole of ethanol. A substantial reduction in the energy consumption, compared with the conventional processes, was predicted by using ethylene glycol and calcium chloride as entrainer. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000100021 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000100021 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322008000100021 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.25 n.1 2008 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213172631306240 |