Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts

Detalhes bibliográficos
Autor(a) principal: Canavese,Sergio
Data de Publicação: 2010
Outros Autores: Finelli,Zunilda, Busto,Mariana, Benitez,Viviana M., Vera,Carlos R., Yori,Juan C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300003
Resumo: WO3-ZrO2 catalysts promoted with Pt and Pd were tested as paraffin isomerization catalysts using n-hexane as model compound. Sulfur and amine poisoning and regeneration tests were used to assess the impact of the addition of Pt and Pd on the deactivation resistance and regenerability. Pt and PtPd catalysts were the most active for n-hexane isomerization. The low activity of the Pd catalyst was attributed to poor Pd metal properties when supported over WO3-ZrO2 and to a decrease of the number of BrQnsted acid sites. PtPd was the only catalyst capable of full regeneration after S poisoning. Amine poisoning completely supressed the isomerization activity and the original activity could only be restored by calcination and reduction.
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spelling Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalystspoisoningisomerizationWO3-ZrO2WO3-ZrO2 catalysts promoted with Pt and Pd were tested as paraffin isomerization catalysts using n-hexane as model compound. Sulfur and amine poisoning and regeneration tests were used to assess the impact of the addition of Pt and Pd on the deactivation resistance and regenerability. Pt and PtPd catalysts were the most active for n-hexane isomerization. The low activity of the Pd catalyst was attributed to poor Pd metal properties when supported over WO3-ZrO2 and to a decrease of the number of BrQnsted acid sites. PtPd was the only catalyst capable of full regeneration after S poisoning. Amine poisoning completely supressed the isomerization activity and the original activity could only be restored by calcination and reduction.Sociedade Brasileira de Química2010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300003Química Nova v.33 n.3 2010reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422010000300003info:eu-repo/semantics/openAccessCanavese,SergioFinelli,ZunildaBusto,MarianaBenitez,Viviana M.Vera,Carlos R.Yori,Juan C.eng2010-04-19T00:00:00Zoai:scielo:S0100-40422010000300003Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2010-04-19T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
title Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
spellingShingle Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
Canavese,Sergio
poisoning
isomerization
WO3-ZrO2
title_short Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
title_full Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
title_fullStr Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
title_full_unstemmed Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
title_sort Poisoning and regeneration of Pt-Pd/WO3-ZrO2 short paraffin isomerization catalysts
author Canavese,Sergio
author_facet Canavese,Sergio
Finelli,Zunilda
Busto,Mariana
Benitez,Viviana M.
Vera,Carlos R.
Yori,Juan C.
author_role author
author2 Finelli,Zunilda
Busto,Mariana
Benitez,Viviana M.
Vera,Carlos R.
Yori,Juan C.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Canavese,Sergio
Finelli,Zunilda
Busto,Mariana
Benitez,Viviana M.
Vera,Carlos R.
Yori,Juan C.
dc.subject.por.fl_str_mv poisoning
isomerization
WO3-ZrO2
topic poisoning
isomerization
WO3-ZrO2
description WO3-ZrO2 catalysts promoted with Pt and Pd were tested as paraffin isomerization catalysts using n-hexane as model compound. Sulfur and amine poisoning and regeneration tests were used to assess the impact of the addition of Pt and Pd on the deactivation resistance and regenerability. Pt and PtPd catalysts were the most active for n-hexane isomerization. The low activity of the Pd catalyst was attributed to poor Pd metal properties when supported over WO3-ZrO2 and to a decrease of the number of BrQnsted acid sites. PtPd was the only catalyst capable of full regeneration after S poisoning. Amine poisoning completely supressed the isomerization activity and the original activity could only be restored by calcination and reduction.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S0100-40422010000300003
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000300003
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422010000300003
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.33 n.3 2010
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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