Phase equilibrium calculations for confined fluids, including surface tension prediction models
Autor(a) principal: | |
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Data de Publicação: | 2005 |
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=S0104-66322005000100010 |
Resumo: | Phase equilibrium calculations for fluids confined inside capillary tubes or porous media are formulated using the isofugacity equations. In this situation, the phase pressures are not equal and it is assumed that they are related by the Laplace equation. With this formulation, existing procedures for phase equilibrium calculations can be readily modified to include capillary effects. In this paper, we review some of the main authors who have studied the behavior of fluids inside porous media and perform bubble- and dew-point calculations for pure components and mixtures, using the Peng-Robinson equation of state to model the coexisting phases and several planar surface tension models. Comparisons with results from the literature indicate that the proposed formulation is adequate for representing phase equilibrium inside capillary tubes. |
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Brazilian Journal of Chemical Engineering |
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Phase equilibrium calculations for confined fluids, including surface tension prediction modelsPhase equilibriumPorous mediaSurface tensionConfined fluidsLaplace equationPhase equilibrium calculations for fluids confined inside capillary tubes or porous media are formulated using the isofugacity equations. In this situation, the phase pressures are not equal and it is assumed that they are related by the Laplace equation. With this formulation, existing procedures for phase equilibrium calculations can be readily modified to include capillary effects. In this paper, we review some of the main authors who have studied the behavior of fluids inside porous media and perform bubble- and dew-point calculations for pure components and mixtures, using the Peng-Robinson equation of state to model the coexisting phases and several planar surface tension models. Comparisons with results from the literature indicate that the proposed formulation is adequate for representing phase equilibrium inside capillary tubes.Brazilian Society of Chemical Engineering2005-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100010Brazilian Journal of Chemical Engineering v.22 n.1 2005reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322005000100010info:eu-repo/semantics/openAccessEspósito,R. O.Tavares,F. W.Castier,M.eng2005-03-14T00:00:00Zoai:scielo:S0104-66322005000100010Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2005-03-14T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
title |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
spellingShingle |
Phase equilibrium calculations for confined fluids, including surface tension prediction models Espósito,R. O. Phase equilibrium Porous media Surface tension Confined fluids Laplace equation |
title_short |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
title_full |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
title_fullStr |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
title_full_unstemmed |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
title_sort |
Phase equilibrium calculations for confined fluids, including surface tension prediction models |
author |
Espósito,R. O. |
author_facet |
Espósito,R. O. Tavares,F. W. Castier,M. |
author_role |
author |
author2 |
Tavares,F. W. Castier,M. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Espósito,R. O. Tavares,F. W. Castier,M. |
dc.subject.por.fl_str_mv |
Phase equilibrium Porous media Surface tension Confined fluids Laplace equation |
topic |
Phase equilibrium Porous media Surface tension Confined fluids Laplace equation |
description |
Phase equilibrium calculations for fluids confined inside capillary tubes or porous media are formulated using the isofugacity equations. In this situation, the phase pressures are not equal and it is assumed that they are related by the Laplace equation. With this formulation, existing procedures for phase equilibrium calculations can be readily modified to include capillary effects. In this paper, we review some of the main authors who have studied the behavior of fluids inside porous media and perform bubble- and dew-point calculations for pure components and mixtures, using the Peng-Robinson equation of state to model the coexisting phases and several planar surface tension models. Comparisons with results from the literature indicate that the proposed formulation is adequate for representing phase equilibrium inside capillary tubes. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-03-01 |
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=S0104-66322005000100010 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000100010 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322005000100010 |
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.22 n.1 2005 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_ |
1754213171860602880 |