New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry

Detalhes bibliográficos
Autor(a) principal: Paulino,Jéssica Frontino
Data de Publicação: 2012
Outros Autores: Afonso,Júlio Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000700027
Resumo: This work examines traditional and new routes for removal of H2S and other sulfur compounds from spent sufidic caustic (SSC). SH- (hydrogenosulfide) and S2- (sulfide) ions were quantitatively oxidized at 25 ºC using H2O2, NaOCl or a spent sulfochromic mixture. SH-/S2- ions were also removed via reaction with freshly prepared iron or manganese hydroxides, or after passing the SSC through strong basic anion exchange resins (OH- form). The treated caustic solution, as well as iron/manganese hydroxides, removed H2S from diesel samples at 25 ºC. SSC treatment via strong basic anion-exchange resins produced the treated caustic solution with the highest free alkalinity.
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spelling New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industryspent sulfidic causticsoda reusesulfur removalThis work examines traditional and new routes for removal of H2S and other sulfur compounds from spent sufidic caustic (SSC). SH- (hydrogenosulfide) and S2- (sulfide) ions were quantitatively oxidized at 25 ºC using H2O2, NaOCl or a spent sulfochromic mixture. SH-/S2- ions were also removed via reaction with freshly prepared iron or manganese hydroxides, or after passing the SSC through strong basic anion exchange resins (OH- form). The treated caustic solution, as well as iron/manganese hydroxides, removed H2S from diesel samples at 25 ºC. SSC treatment via strong basic anion-exchange resins produced the treated caustic solution with the highest free alkalinity.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000700027Química Nova v.35 n.7 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000700027info:eu-repo/semantics/openAccessPaulino,Jéssica FrontinoAfonso,Júlio Carloseng2012-08-16T00:00:00Zoai:scielo:S0100-40422012000700027Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-08-16T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
title New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
spellingShingle New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
Paulino,Jéssica Frontino
spent sulfidic caustic
soda reuse
sulfur removal
title_short New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
title_full New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
title_fullStr New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
title_full_unstemmed New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
title_sort New strategies for treatment and reuse of spent sulfidic caustic stream from petroleum industry
author Paulino,Jéssica Frontino
author_facet Paulino,Jéssica Frontino
Afonso,Júlio Carlos
author_role author
author2 Afonso,Júlio Carlos
author2_role author
dc.contributor.author.fl_str_mv Paulino,Jéssica Frontino
Afonso,Júlio Carlos
dc.subject.por.fl_str_mv spent sulfidic caustic
soda reuse
sulfur removal
topic spent sulfidic caustic
soda reuse
sulfur removal
description This work examines traditional and new routes for removal of H2S and other sulfur compounds from spent sufidic caustic (SSC). SH- (hydrogenosulfide) and S2- (sulfide) ions were quantitatively oxidized at 25 ºC using H2O2, NaOCl or a spent sulfochromic mixture. SH-/S2- ions were also removed via reaction with freshly prepared iron or manganese hydroxides, or after passing the SSC through strong basic anion exchange resins (OH- form). The treated caustic solution, as well as iron/manganese hydroxides, removed H2S from diesel samples at 25 ºC. SSC treatment via strong basic anion-exchange resins produced the treated caustic solution with the highest free alkalinity.
publishDate 2012
dc.date.none.fl_str_mv 2012-01-01
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=S0100-40422012000700027
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000700027
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422012000700027
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 Química Nova v.35 n.7 2012
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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