Solid-liquid equilibrium of triolein with fatty alcohols
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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=S0104-66322013000100005 |
Resumo: | Triacylglycerols and fatty alcohols are used in the formulation of cosmetic, pharmaceutical and food products. Although information about the phase transitions of these compounds and their mixtures is frequently required for design and optimization of processes and product formulation involving these substances, these data are still scarce in the literature. In the present study, the solid-liquid phase diagrams of two binary systems composed of triolein + 1-hexadecanol and triolein + 1-octadecanol were evaluated by differential scanning calorimetry (DSC) and optical microscopy. The experimental data were compared with predicted data by solving the phase equilibrium equations using an algorithm implemented in MATLAB. The liquid-phase activity coefficients were calculated using the Margules equation (two- and three-suffix) and the UNIFAC model (original and modified Dortmund model). The approaches used for calculating system equilibrium allowed an accurate prediction of the liquidus line with low deviations from the experimental data. |
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Brazilian Journal of Chemical Engineering |
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Solid-liquid equilibrium of triolein with fatty alcoholsTrioleinFatty alcoholSolid-liquid equilibriumDifferential scanning calorimetryModelingUNIFACTriacylglycerols and fatty alcohols are used in the formulation of cosmetic, pharmaceutical and food products. Although information about the phase transitions of these compounds and their mixtures is frequently required for design and optimization of processes and product formulation involving these substances, these data are still scarce in the literature. In the present study, the solid-liquid phase diagrams of two binary systems composed of triolein + 1-hexadecanol and triolein + 1-octadecanol were evaluated by differential scanning calorimetry (DSC) and optical microscopy. The experimental data were compared with predicted data by solving the phase equilibrium equations using an algorithm implemented in MATLAB. The liquid-phase activity coefficients were calculated using the Margules equation (two- and three-suffix) and the UNIFAC model (original and modified Dortmund model). The approaches used for calculating system equilibrium allowed an accurate prediction of the liquidus line with low deviations from the experimental data.Brazilian Society of Chemical Engineering2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000100005Brazilian Journal of Chemical Engineering v.30 n.1 2013reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322013000100005info:eu-repo/semantics/openAccessMaximo,G. J.Costa,M. C.Meirelles,A. J. A.eng2013-03-01T00:00:00Zoai:scielo:S0104-66322013000100005Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2013-03-01T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Solid-liquid equilibrium of triolein with fatty alcohols |
title |
Solid-liquid equilibrium of triolein with fatty alcohols |
spellingShingle |
Solid-liquid equilibrium of triolein with fatty alcohols Maximo,G. J. Triolein Fatty alcohol Solid-liquid equilibrium Differential scanning calorimetry Modeling UNIFAC |
title_short |
Solid-liquid equilibrium of triolein with fatty alcohols |
title_full |
Solid-liquid equilibrium of triolein with fatty alcohols |
title_fullStr |
Solid-liquid equilibrium of triolein with fatty alcohols |
title_full_unstemmed |
Solid-liquid equilibrium of triolein with fatty alcohols |
title_sort |
Solid-liquid equilibrium of triolein with fatty alcohols |
author |
Maximo,G. J. |
author_facet |
Maximo,G. J. Costa,M. C. Meirelles,A. J. A. |
author_role |
author |
author2 |
Costa,M. C. Meirelles,A. J. A. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Maximo,G. J. Costa,M. C. Meirelles,A. J. A. |
dc.subject.por.fl_str_mv |
Triolein Fatty alcohol Solid-liquid equilibrium Differential scanning calorimetry Modeling UNIFAC |
topic |
Triolein Fatty alcohol Solid-liquid equilibrium Differential scanning calorimetry Modeling UNIFAC |
description |
Triacylglycerols and fatty alcohols are used in the formulation of cosmetic, pharmaceutical and food products. Although information about the phase transitions of these compounds and their mixtures is frequently required for design and optimization of processes and product formulation involving these substances, these data are still scarce in the literature. In the present study, the solid-liquid phase diagrams of two binary systems composed of triolein + 1-hexadecanol and triolein + 1-octadecanol were evaluated by differential scanning calorimetry (DSC) and optical microscopy. The experimental data were compared with predicted data by solving the phase equilibrium equations using an algorithm implemented in MATLAB. The liquid-phase activity coefficients were calculated using the Margules equation (two- and three-suffix) and the UNIFAC model (original and modified Dortmund model). The approaches used for calculating system equilibrium allowed an accurate prediction of the liquidus line with low deviations from the experimental data. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-01 |
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=S0104-66322013000100005 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322013000100005 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322013000100005 |
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.30 n.1 2013 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_ |
1754213173879111680 |