Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether

The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4 MPa and in the temperature range of 413-463 K over the ion exchange resin Amberlyst-70. The thermodynamic equili...

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Autores: Pérez-Maciá, María Ángeles, Bringué Tomàs, Roger, Iborra Urios, Montserrat, Tejero Salvador, Xavier, Cunill García, Fidel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/99072
Acceso en línea:https://hdl.handle.net/2445/99072
Access Level:acceso abierto
Palabra clave:Èters
Alcohol butílic
Resines de bescanvi iònic
Ethers
Butanol
Ion exchange resins
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spelling Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl etherPérez-Maciá, María ÁngelesBringué Tomàs, RogerIborra Urios, MontserratTejero Salvador, XavierCunill García, FidelÈtersAlcohol butílicResines de bescanvi iònicEthersButanolIon exchange resinsThe thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4 MPa and in the temperature range of 413-463 K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent on the operating temperature, within the limits of the experimental error ( 5.2%). The experimental equilibrium constants at 413-463 K allows to estimate the standard enthalpy change of reaction (ΔrH0(l) = -0.3 ± 2.9 kJ¿mol-1) and the standard entropy change of reaction (ΔrS0(l) = 26.8 ± 6.7 J¿mol-1¿K-1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15 K were computed to be -370.5 ± 10.9 kJ¿mol-1 and 408.3 ± 6.8 J¿mol-1¿K-1 respectivelyElsevier B.V.2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/99072Articles publicats en revistes (Enginyeria Química i Química Analítica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1016/j.cherd.2015.06.007Chemical Engineering Research & Design, 2015, vol. 102, p. 186-195http://dx.doi.org/10.1016/j.cherd.2015.06.007cc-by-nc-nd (c) Elsevier B.V., 2015http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/990722026-05-27T06:46:51Z
dc.title.none.fl_str_mv Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
title Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
spellingShingle Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
Pérez-Maciá, María Ángeles
Èters
Alcohol butílic
Resines de bescanvi iònic
Ethers
Butanol
Ion exchange resins
title_short Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
title_full Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
title_fullStr Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
title_full_unstemmed Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
title_sort Thermodynamic equilibrium for the dehydration of 1-butanol to di-n-butyl ether
dc.creator.none.fl_str_mv Pérez-Maciá, María Ángeles
Bringué Tomàs, Roger
Iborra Urios, Montserrat
Tejero Salvador, Xavier
Cunill García, Fidel
author Pérez-Maciá, María Ángeles
author_facet Pérez-Maciá, María Ángeles
Bringué Tomàs, Roger
Iborra Urios, Montserrat
Tejero Salvador, Xavier
Cunill García, Fidel
author_role author
author2 Bringué Tomàs, Roger
Iborra Urios, Montserrat
Tejero Salvador, Xavier
Cunill García, Fidel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Èters
Alcohol butílic
Resines de bescanvi iònic
Ethers
Butanol
Ion exchange resins
topic Èters
Alcohol butílic
Resines de bescanvi iònic
Ethers
Butanol
Ion exchange resins
description The thermodynamic equilibrium of the bimolecular dehydration of 1-butanol to di-n-butyl ether (DNBE) and water in the liquid phase was studied. Equilibrium experiments were performed at 4 MPa and in the temperature range of 413-463 K over the ion exchange resin Amberlyst-70. The thermodynamic equilibrium for the side reactions (dehydration to 1-butene, olefins isomerization, olefins hydration and branched ether formation) was also studied. The equilibrium constant for the dehydration reaction of 1-butanol to di-n-butyl ether and water was found to be independent on the operating temperature, within the limits of the experimental error ( 5.2%). The experimental equilibrium constants at 413-463 K allows to estimate the standard enthalpy change of reaction (ΔrH0(l) = -0.3 ± 2.9 kJ¿mol-1) and the standard entropy change of reaction (ΔrS0(l) = 26.8 ± 6.7 J¿mol-1¿K-1). From these values the standard formation enthalpy (ΔfH0DNBE,(l)) and the molar entropy of DNBE (S0DNBE,(l)) at 298.15 K were computed to be -370.5 ± 10.9 kJ¿mol-1 and 408.3 ± 6.8 J¿mol-1¿K-1 respectively
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/99072
url https://hdl.handle.net/2445/99072
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1016/j.cherd.2015.06.007
Chemical Engineering Research & Design, 2015, vol. 102, p. 186-195
http://dx.doi.org/10.1016/j.cherd.2015.06.007
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Química i Química Analítica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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