Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , |
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=S0103-50532004000500024 |
Resumo: | This work describes the hydrogenation of 2-ethyl-hexen-2-al in a slurry bed reactor in liquid phase on Ni/Al2O3 catalysts (4.4-17.0% wt Ni). XRD, DRS and TPR results showed the presence of superficial Ni2+ species in octahedral (surface Ni oxide) and tetrahedral coordination (spinel-type phase) in the subsurface of the support. Nickel oxide crystallites were found in samples with Ni content above 7.3%, either in tetrahedral or octahedral coordination. The highest selectivity for 2-ethyl-hexanal was obtained with the catalysts containing 7.3% wt Ni. The turnover frequency (TOF) was independent on the Ni concentration, suggesting that this hydrogenation reaction is structure insensitive. |
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Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts2-ethyl-hexen-2-al2-ethyl-hexanalNi/Al2O3, slurry bed reactorThis work describes the hydrogenation of 2-ethyl-hexen-2-al in a slurry bed reactor in liquid phase on Ni/Al2O3 catalysts (4.4-17.0% wt Ni). XRD, DRS and TPR results showed the presence of superficial Ni2+ species in octahedral (surface Ni oxide) and tetrahedral coordination (spinel-type phase) in the subsurface of the support. Nickel oxide crystallites were found in samples with Ni content above 7.3%, either in tetrahedral or octahedral coordination. The highest selectivity for 2-ethyl-hexanal was obtained with the catalysts containing 7.3% wt Ni. The turnover frequency (TOF) was independent on the Ni concentration, suggesting that this hydrogenation reaction is structure insensitive.Sociedade Brasileira de Química2004-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000500024Journal of the Brazilian Chemical Society v.15 n.5 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000500024info:eu-repo/semantics/openAccessMattos,Arthur R.J.M.Probst,Sônia H.Afonso,Júlio C.Schmal,Martineng2004-11-10T00:00:00Zoai:scielo:S0103-50532004000500024Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2004-11-10T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
title |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
spellingShingle |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts Mattos,Arthur R.J.M. 2-ethyl-hexen-2-al 2-ethyl-hexanal Ni/Al2O3, slurry bed reactor |
title_short |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
title_full |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
title_fullStr |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
title_full_unstemmed |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
title_sort |
Hydrogenation of 2-ethyl-hexen-2-al on Ni/Al2O3 catalysts |
author |
Mattos,Arthur R.J.M. |
author_facet |
Mattos,Arthur R.J.M. Probst,Sônia H. Afonso,Júlio C. Schmal,Martin |
author_role |
author |
author2 |
Probst,Sônia H. Afonso,Júlio C. Schmal,Martin |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mattos,Arthur R.J.M. Probst,Sônia H. Afonso,Júlio C. Schmal,Martin |
dc.subject.por.fl_str_mv |
2-ethyl-hexen-2-al 2-ethyl-hexanal Ni/Al2O3, slurry bed reactor |
topic |
2-ethyl-hexen-2-al 2-ethyl-hexanal Ni/Al2O3, slurry bed reactor |
description |
This work describes the hydrogenation of 2-ethyl-hexen-2-al in a slurry bed reactor in liquid phase on Ni/Al2O3 catalysts (4.4-17.0% wt Ni). XRD, DRS and TPR results showed the presence of superficial Ni2+ species in octahedral (surface Ni oxide) and tetrahedral coordination (spinel-type phase) in the subsurface of the support. Nickel oxide crystallites were found in samples with Ni content above 7.3%, either in tetrahedral or octahedral coordination. The highest selectivity for 2-ethyl-hexanal was obtained with the catalysts containing 7.3% wt Ni. The turnover frequency (TOF) was independent on the Ni concentration, suggesting that this hydrogenation reaction is structure insensitive. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-10-01 |
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=S0103-50532004000500024 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000500024 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-50532004000500024 |
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.15 n.5 2004 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 |
_version_ |
1750318165812838400 |