Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002 |
Resumo: | Light petroleum derivatives consist of nonpolar hydrocarbons, which are aggressive to carbon steel due to the presence of water. In this study, we show both experimentally and theoretically that the water-phase pH during corrosion is controlled by the interaction of the aqueous phase with the atmospheric CO2 and with iron corrosion products in both solution and precipitates. During the corrosion process, the pH of the solution changes, regardless of its initial value, towards a neutral value. This behaviour explains why the corrosiveness of a petroleum derivative emulsion is not influenced by the initial water-phase pH. |
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Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steelCarbon SteelFuel Corrosivenesspetroleum DerivateNaphthaLight petroleum derivatives consist of nonpolar hydrocarbons, which are aggressive to carbon steel due to the presence of water. In this study, we show both experimentally and theoretically that the water-phase pH during corrosion is controlled by the interaction of the aqueous phase with the atmospheric CO2 and with iron corrosion products in both solution and precipitates. During the corrosion process, the pH of the solution changes, regardless of its initial value, towards a neutral value. This behaviour explains why the corrosiveness of a petroleum derivative emulsion is not influenced by the initial water-phase pH.LNEG - Laboratório Nacional de Energia e Geologia, I.P.2015-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002Corrosão e Protecção de Materiais v.34 n.2 2015reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002Nagayassu,V. Y.Panossian,Z.Seckler,M. M.info:eu-repo/semantics/openAccess2024-02-06T16:58:55Zoai:scielo:S0870-11642015000200002Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:15:25.905775Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
title |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
spellingShingle |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel Nagayassu,V. Y. Carbon Steel Fuel Corrosiveness petroleum Derivate Naphtha |
title_short |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
title_full |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
title_fullStr |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
title_full_unstemmed |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
title_sort |
Study of the influence of the water ph on the determination of corrosiveness of petroleum derivative on carbon steel |
author |
Nagayassu,V. Y. |
author_facet |
Nagayassu,V. Y. Panossian,Z. Seckler,M. M. |
author_role |
author |
author2 |
Panossian,Z. Seckler,M. M. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Nagayassu,V. Y. Panossian,Z. Seckler,M. M. |
dc.subject.por.fl_str_mv |
Carbon Steel Fuel Corrosiveness petroleum Derivate Naphtha |
topic |
Carbon Steel Fuel Corrosiveness petroleum Derivate Naphtha |
description |
Light petroleum derivatives consist of nonpolar hydrocarbons, which are aggressive to carbon steel due to the presence of water. In this study, we show both experimentally and theoretically that the water-phase pH during corrosion is controlled by the interaction of the aqueous phase with the atmospheric CO2 and with iron corrosion products in both solution and precipitates. During the corrosion process, the pH of the solution changes, regardless of its initial value, towards a neutral value. This behaviour explains why the corrosiveness of a petroleum derivative emulsion is not influenced by the initial water-phase pH. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-12-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0870-11642015000200002 |
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 |
LNEG - Laboratório Nacional de Energia e Geologia, I.P. |
publisher.none.fl_str_mv |
LNEG - Laboratório Nacional de Energia e Geologia, I.P. |
dc.source.none.fl_str_mv |
Corrosão e Protecção de Materiais v.34 n.2 2015 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137254639140864 |