Electrochemical impedance spectroscopy of water-in-crude oil emulsions

Detalhes bibliográficos
Autor(a) principal: Oliva, David
Data de Publicação: 2020
Outros Autores: Jorge, José, Navia, José Antonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Revista Brasileira de Física Tecnológica Aplicada
Texto Completo: https://periodicos.utfpr.edu.br/rbfta/article/view/12686
Resumo: We conducted a study of Electrochemical Impedance Spectroscopy on water-in-crude oil emulsions based on a heavy oil sample from the Orinoco Belt. Electric impedance measures were obtained by means of an HP 4192A impedance analyzer and a stainless steel coaxial cylinder capacitor; due to impedance coupling between the analyzer and the sensor, the frequency range was taken from 75 kHz to 4 MHz. Impedance modulus and phase angle of the studied samples showed that the composed system behaves like an ideal capacitor filled with dielectric. Overall, the dielectric permittivities of samples, real and imaginary part, increase with the water contained in emulsions. The electric conductivity of all emulsions increase with frequency. The experimental data was fitted to Wagner’s theory and Hanai’s theory, finding a good correlation with the high frequencies Hanai model at water concentrations lower than 30%.        
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spelling Electrochemical impedance spectroscopy of water-in-crude oil emulsions1.05.07.15-9; 1.06.03.02-6; 1.06.03.03-4Spectroscopy; impedance; dielectric; water contentWe conducted a study of Electrochemical Impedance Spectroscopy on water-in-crude oil emulsions based on a heavy oil sample from the Orinoco Belt. Electric impedance measures were obtained by means of an HP 4192A impedance analyzer and a stainless steel coaxial cylinder capacitor; due to impedance coupling between the analyzer and the sensor, the frequency range was taken from 75 kHz to 4 MHz. Impedance modulus and phase angle of the studied samples showed that the composed system behaves like an ideal capacitor filled with dielectric. Overall, the dielectric permittivities of samples, real and imaginary part, increase with the water contained in emulsions. The electric conductivity of all emulsions increase with frequency. The experimental data was fitted to Wagner’s theory and Hanai’s theory, finding a good correlation with the high frequencies Hanai model at water concentrations lower than 30%.        Universidade Tecnológica Federal do Paraná (UTFPR)Oliva, DavidJorge, JoséNavia, José Antonio2020-08-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.utfpr.edu.br/rbfta/article/view/1268610.3895/rbfta.v7n2.12686Revista Brasileira de Física Tecnológica Aplicada; v. 7, n. 2 (2020)2358-008910.3895/rbfta.v7n2reponame:Revista Brasileira de Física Tecnológica Aplicadainstname:Universidade Tecnológica Federal do Paraná (UTFPR)instacron:UTFPRporhttps://periodicos.utfpr.edu.br/rbfta/article/view/12686/7651Direitos autorais 2020 CC-BYhttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2020-08-04T19:31:56Zoai:periodicos.utfpr:article/12686Revistahttps://periodicos.utfpr.edu.br/rbftaPUBhttps://periodicos.utfpr.edu.br/rbfta/oai||rbfta-pg@utfpr.edu.br2358-00892358-0089opendoar:2020-08-04T19:31:56Revista Brasileira de Física Tecnológica Aplicada - Universidade Tecnológica Federal do Paraná (UTFPR)false
dc.title.none.fl_str_mv Electrochemical impedance spectroscopy of water-in-crude oil emulsions
title Electrochemical impedance spectroscopy of water-in-crude oil emulsions
spellingShingle Electrochemical impedance spectroscopy of water-in-crude oil emulsions
Oliva, David
1.05.07.15-9; 1.06.03.02-6; 1.06.03.03-4
Spectroscopy; impedance; dielectric; water content
title_short Electrochemical impedance spectroscopy of water-in-crude oil emulsions
title_full Electrochemical impedance spectroscopy of water-in-crude oil emulsions
title_fullStr Electrochemical impedance spectroscopy of water-in-crude oil emulsions
title_full_unstemmed Electrochemical impedance spectroscopy of water-in-crude oil emulsions
title_sort Electrochemical impedance spectroscopy of water-in-crude oil emulsions
author Oliva, David
author_facet Oliva, David
Jorge, José
Navia, José Antonio
author_role author
author2 Jorge, José
Navia, José Antonio
author2_role author
author
dc.contributor.none.fl_str_mv
dc.contributor.author.fl_str_mv Oliva, David
Jorge, José
Navia, José Antonio
dc.subject.por.fl_str_mv 1.05.07.15-9; 1.06.03.02-6; 1.06.03.03-4
Spectroscopy; impedance; dielectric; water content
topic 1.05.07.15-9; 1.06.03.02-6; 1.06.03.03-4
Spectroscopy; impedance; dielectric; water content
description We conducted a study of Electrochemical Impedance Spectroscopy on water-in-crude oil emulsions based on a heavy oil sample from the Orinoco Belt. Electric impedance measures were obtained by means of an HP 4192A impedance analyzer and a stainless steel coaxial cylinder capacitor; due to impedance coupling between the analyzer and the sensor, the frequency range was taken from 75 kHz to 4 MHz. Impedance modulus and phase angle of the studied samples showed that the composed system behaves like an ideal capacitor filled with dielectric. Overall, the dielectric permittivities of samples, real and imaginary part, increase with the water contained in emulsions. The electric conductivity of all emulsions increase with frequency. The experimental data was fitted to Wagner’s theory and Hanai’s theory, finding a good correlation with the high frequencies Hanai model at water concentrations lower than 30%.        
publishDate 2020
dc.date.none.fl_str_mv 2020-08-04
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.utfpr.edu.br/rbfta/article/view/12686
10.3895/rbfta.v7n2.12686
url https://periodicos.utfpr.edu.br/rbfta/article/view/12686
identifier_str_mv 10.3895/rbfta.v7n2.12686
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://periodicos.utfpr.edu.br/rbfta/article/view/12686/7651
dc.rights.driver.fl_str_mv Direitos autorais 2020 CC-BY
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2020 CC-BY
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Tecnológica Federal do Paraná (UTFPR)
publisher.none.fl_str_mv Universidade Tecnológica Federal do Paraná (UTFPR)
dc.source.none.fl_str_mv Revista Brasileira de Física Tecnológica Aplicada; v. 7, n. 2 (2020)
2358-0089
10.3895/rbfta.v7n2
reponame:Revista Brasileira de Física Tecnológica Aplicada
instname:Universidade Tecnológica Federal do Paraná (UTFPR)
instacron:UTFPR
instname_str Universidade Tecnológica Federal do Paraná (UTFPR)
instacron_str UTFPR
institution UTFPR
reponame_str Revista Brasileira de Física Tecnológica Aplicada
collection Revista Brasileira de Física Tecnológica Aplicada
repository.name.fl_str_mv Revista Brasileira de Física Tecnológica Aplicada - Universidade Tecnológica Federal do Paraná (UTFPR)
repository.mail.fl_str_mv ||rbfta-pg@utfpr.edu.br
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