Modeling the supercritical desorption of orange essential oil from a silica-gel bed

Detalhes bibliográficos
Autor(a) principal: Silva,E.A.
Data de Publicação: 2000
Outros Autores: Cardozo-Filho,L., Wolff,F., Meireles,M.A.A.
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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spelling 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
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