Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol

Detalhes bibliográficos
Autor(a) principal: N. Filho,Irajá
Data de Publicação: 2013
Outros Autores: Vieceli,Nathália C., Cardoso,Eduardo M., Lovatel,Eduardo R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300008
Resumo: The main objective of the present study was to assess the evaporation profile of BTEX (benzene, toluene, ethylbenzene and xylenes) in neat gasoline and gasoline-ethanol blend fuels. The vapors from two sealed columns containing river sand and distilled water were monitored during 18 days by SPME (solid-phase microextraction). BTEX that remained in the water and sand phases were extracted by SPE (solid-phase extraction) and Soxhlet, respectively. Instrumental analysis was performed by gas chromatography using a flame ionization detector (GC/FID). Toluene and ethylbenzene showed the highest volatilizations in the gasoline-ethanol column and the occurrence of attractive intermolecular forces among ethanol and BTEX molecules can be responsible for this distribution. Benzene showed the lowest reduction of concentration in the sand compartment in the gasoline-ethanol column.
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spelling Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanolgasolineethanolBTEXgas chromatographyvolatilizationThe main objective of the present study was to assess the evaporation profile of BTEX (benzene, toluene, ethylbenzene and xylenes) in neat gasoline and gasoline-ethanol blend fuels. The vapors from two sealed columns containing river sand and distilled water were monitored during 18 days by SPME (solid-phase microextraction). BTEX that remained in the water and sand phases were extracted by SPE (solid-phase extraction) and Soxhlet, respectively. Instrumental analysis was performed by gas chromatography using a flame ionization detector (GC/FID). Toluene and ethylbenzene showed the highest volatilizations in the gasoline-ethanol column and the occurrence of attractive intermolecular forces among ethanol and BTEX molecules can be responsible for this distribution. Benzene showed the lowest reduction of concentration in the sand compartment in the gasoline-ethanol column.Sociedade Brasileira de Química2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300008Journal of the Brazilian Chemical Society v.24 n.3 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130053info:eu-repo/semantics/openAccessN. Filho,IrajáVieceli,Nathália C.Cardoso,Eduardo M.Lovatel,Eduardo R.eng2013-05-24T00:00:00Zoai:scielo:S0103-50532013000300008Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2013-05-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
title Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
spellingShingle Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
N. Filho,Irajá
gasoline
ethanol
BTEX
gas chromatography
volatilization
title_short Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
title_full Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
title_fullStr Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
title_full_unstemmed Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
title_sort Analysis of BTEX in experimental columns containing neat gasoline and gasoline-ethanol
author N. Filho,Irajá
author_facet N. Filho,Irajá
Vieceli,Nathália C.
Cardoso,Eduardo M.
Lovatel,Eduardo R.
author_role author
author2 Vieceli,Nathália C.
Cardoso,Eduardo M.
Lovatel,Eduardo R.
author2_role author
author
author
dc.contributor.author.fl_str_mv N. Filho,Irajá
Vieceli,Nathália C.
Cardoso,Eduardo M.
Lovatel,Eduardo R.
dc.subject.por.fl_str_mv gasoline
ethanol
BTEX
gas chromatography
volatilization
topic gasoline
ethanol
BTEX
gas chromatography
volatilization
description The main objective of the present study was to assess the evaporation profile of BTEX (benzene, toluene, ethylbenzene and xylenes) in neat gasoline and gasoline-ethanol blend fuels. The vapors from two sealed columns containing river sand and distilled water were monitored during 18 days by SPME (solid-phase microextraction). BTEX that remained in the water and sand phases were extracted by SPE (solid-phase extraction) and Soxhlet, respectively. Instrumental analysis was performed by gas chromatography using a flame ionization detector (GC/FID). Toluene and ethylbenzene showed the highest volatilizations in the gasoline-ethanol column and the occurrence of attractive intermolecular forces among ethanol and BTEX molecules can be responsible for this distribution. Benzene showed the lowest reduction of concentration in the sand compartment in the gasoline-ethanol column.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-01
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=S0103-50532013000300008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20130053
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 Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.24 n.3 2013
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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