Modeling the supercritical desorption of orange essential oil from a silica-gel bed
Autor(a) principal: | |
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Data de Publicação: | 2000 |
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=S0104-66322000000300004 |
Resumo: | One of the most important byproducts of the orange juice industry is the oil phase. This is a mixture of terpenes, alcohols, and aldehydes, dissolved in approximately 96% limonene. To satisfactorily use oil phase as an ingredient in the food and cosmetics industries separation of the limonene is required. One possibility is to use a fixed bed of silica gel to remove the light or aroma compounds from the limonene. The aroma substances are then extracted from the bed of silica gel using supercritical carbon dioxide. This work deals with the modeling of the desorption step of the process using mass balance equations coupled with the Langmuir equilibrium isotherm. Data taken from the literature for the overall extraction curves were used together with empirical correlations to calculate the concentration profile of solute in the supercritical phase at the bed outlet. The system of equations was solved by the finite volume technique. The overall extraction curves calculated were in good agreement with the experimental ones. |
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Brazilian Journal of Chemical Engineering |
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Modeling the supercritical desorption of orange essential oil from a silica-gel bedorange oiloil phasedesorptionsupercritical fluidsmass transfer modelingsolid matricescarbon dioxideOne of the most important byproducts of the orange juice industry is the oil phase. This is a mixture of terpenes, alcohols, and aldehydes, dissolved in approximately 96% limonene. To satisfactorily use oil phase as an ingredient in the food and cosmetics industries separation of the limonene is required. One possibility is to use a fixed bed of silica gel to remove the light or aroma compounds from the limonene. The aroma substances are then extracted from the bed of silica gel using supercritical carbon dioxide. This work deals with the modeling of the desorption step of the process using mass balance equations coupled with the Langmuir equilibrium isotherm. Data taken from the literature for the overall extraction curves were used together with empirical correlations to calculate the concentration profile of solute in the supercritical phase at the bed outlet. The system of equations was solved by the finite volume technique. The overall extraction curves calculated were in good agreement with the experimental ones.Brazilian Society of Chemical Engineering2000-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300004Brazilian Journal of Chemical Engineering v.17 n.3 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000300004info:eu-repo/semantics/openAccessSilva,E.A.Cardozo-Filho,L.Wolff,F.Meireles,M.A.A.eng2000-10-18T00:00:00Zoai:scielo:S0104-66322000000300004Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2000-10-18T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
title |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
spellingShingle |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed Silva,E.A. orange oil oil phase desorption supercritical fluids mass transfer modeling solid matrices carbon dioxide |
title_short |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
title_full |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
title_fullStr |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
title_full_unstemmed |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
title_sort |
Modeling the supercritical desorption of orange essential oil from a silica-gel bed |
author |
Silva,E.A. |
author_facet |
Silva,E.A. Cardozo-Filho,L. Wolff,F. Meireles,M.A.A. |
author_role |
author |
author2 |
Cardozo-Filho,L. Wolff,F. Meireles,M.A.A. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Silva,E.A. Cardozo-Filho,L. Wolff,F. Meireles,M.A.A. |
dc.subject.por.fl_str_mv |
orange oil oil phase desorption supercritical fluids mass transfer modeling solid matrices carbon dioxide |
topic |
orange oil oil phase desorption supercritical fluids mass transfer modeling solid matrices carbon dioxide |
description |
One of the most important byproducts of the orange juice industry is the oil phase. This is a mixture of terpenes, alcohols, and aldehydes, dissolved in approximately 96% limonene. To satisfactorily use oil phase as an ingredient in the food and cosmetics industries separation of the limonene is required. One possibility is to use a fixed bed of silica gel to remove the light or aroma compounds from the limonene. The aroma substances are then extracted from the bed of silica gel using supercritical carbon dioxide. This work deals with the modeling of the desorption step of the process using mass balance equations coupled with the Langmuir equilibrium isotherm. Data taken from the literature for the overall extraction curves were used together with empirical correlations to calculate the concentration profile of solute in the supercritical phase at the bed outlet. The system of equations was solved by the finite volume technique. The overall extraction curves calculated were in good agreement with the experimental ones. |
publishDate |
2000 |
dc.date.none.fl_str_mv |
2000-09-01 |
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=S0104-66322000000300004 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000300004 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322000000300004 |
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.17 n.3 2000 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_ |
1754213170717655040 |