Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst

Detalhes bibliográficos
Autor(a) principal: Rodrigues,M.G.F.
Data de Publicação: 2000
Outros Autores: Magnoux,P., Guisnet,M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000100009
Resumo: After steaming at 530° C for 30 minutes and for 6 hours, a Ga/HZSM5 catalyst was characterized by three model reactions (meta-xylene isomerization, propane aromatization and methylcyclohexane transformation). The activity and selectivity of this catalyst were compared to those of a fresh Ga/HZSM5 catalyst. It was demonstrated that hydrothermal treatment provokes a significant decrease in the dehydrogenation activity of the gallium species and a small decrease in the protonic acidity of the catalyst.
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spelling Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalystGa/HZSM5 catalystpropanedeactivation by steamingAfter steaming at 530° C for 30 minutes and for 6 hours, a Ga/HZSM5 catalyst was characterized by three model reactions (meta-xylene isomerization, propane aromatization and methylcyclohexane transformation). The activity and selectivity of this catalyst were compared to those of a fresh Ga/HZSM5 catalyst. It was demonstrated that hydrothermal treatment provokes a significant decrease in the dehydrogenation activity of the gallium species and a small decrease in the protonic acidity of the catalyst.Brazilian Society of Chemical Engineering2000-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000100009Brazilian Journal of Chemical Engineering v.17 n.1 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000100009info:eu-repo/semantics/openAccessRodrigues,M.G.F.Magnoux,P.Guisnet,M.eng2000-04-24T00:00:00Zoai:scielo:S0104-66322000000100009Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2000-04-24T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
title Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
spellingShingle Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
Rodrigues,M.G.F.
Ga/HZSM5 catalyst
propane
deactivation by steaming
title_short Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
title_full Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
title_fullStr Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
title_full_unstemmed Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
title_sort Influence of hydrothermal treatment on the acid and redox functions of a Ga/HZSM5 catalyst
author Rodrigues,M.G.F.
author_facet Rodrigues,M.G.F.
Magnoux,P.
Guisnet,M.
author_role author
author2 Magnoux,P.
Guisnet,M.
author2_role author
author
dc.contributor.author.fl_str_mv Rodrigues,M.G.F.
Magnoux,P.
Guisnet,M.
dc.subject.por.fl_str_mv Ga/HZSM5 catalyst
propane
deactivation by steaming
topic Ga/HZSM5 catalyst
propane
deactivation by steaming
description After steaming at 530° C for 30 minutes and for 6 hours, a Ga/HZSM5 catalyst was characterized by three model reactions (meta-xylene isomerization, propane aromatization and methylcyclohexane transformation). The activity and selectivity of this catalyst were compared to those of a fresh Ga/HZSM5 catalyst. It was demonstrated that hydrothermal treatment provokes a significant decrease in the dehydrogenation activity of the gallium species and a small decrease in the protonic acidity of the catalyst.
publishDate 2000
dc.date.none.fl_str_mv 2000-03-01
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=S0104-66322000000100009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000100009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322000000100009
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.17 n.1 2000
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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