Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition

Detalhes bibliográficos
Autor(a) principal: Tonelli,Franco
Data de Publicação: 2011
Outros Autores: Gorriz,Osvaldo, Arrúa,Luis, Abello,Maria Cristina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800007
Resumo: Methanol steam reforming reaction was studied over Cu(5 wt.%)/CeO2 with and without the presence of Zn. The Zn addition decreased the Cu+2 reducibility and increased the oxygen mobility of ceria. The main products were CO2 and H2 with small amount of CO. Selectivity to CO decreased with the Zn addition and it was lower at lower reaction temperatures and lower space velocities. At 230 ºC and W/F MeOH = 648 g min mol-1 selectivities to H2 and to CO2 were 100% on Zn/Cu/Ce. The catalytic results indicated that CO was mainly a secondary product formed from reverse water gas shift reaction.
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spelling Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc additionhydrogenmethanolCO formationMethanol steam reforming reaction was studied over Cu(5 wt.%)/CeO2 with and without the presence of Zn. The Zn addition decreased the Cu+2 reducibility and increased the oxygen mobility of ceria. The main products were CO2 and H2 with small amount of CO. Selectivity to CO decreased with the Zn addition and it was lower at lower reaction temperatures and lower space velocities. At 230 ºC and W/F MeOH = 648 g min mol-1 selectivities to H2 and to CO2 were 100% on Zn/Cu/Ce. The catalytic results indicated that CO was mainly a secondary product formed from reverse water gas shift reaction.Sociedade Brasileira de Química2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800007Química Nova v.34 n.8 2011reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422011000800007info:eu-repo/semantics/openAccessTonelli,FrancoGorriz,OsvaldoArrúa,LuisAbello,Maria Cristinaeng2011-10-06T00:00:00Zoai:scielo:S0100-40422011000800007Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-10-06T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
title Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
spellingShingle Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
Tonelli,Franco
hydrogen
methanol
CO formation
title_short Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
title_full Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
title_fullStr Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
title_full_unstemmed Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
title_sort Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
author Tonelli,Franco
author_facet Tonelli,Franco
Gorriz,Osvaldo
Arrúa,Luis
Abello,Maria Cristina
author_role author
author2 Gorriz,Osvaldo
Arrúa,Luis
Abello,Maria Cristina
author2_role author
author
author
dc.contributor.author.fl_str_mv Tonelli,Franco
Gorriz,Osvaldo
Arrúa,Luis
Abello,Maria Cristina
dc.subject.por.fl_str_mv hydrogen
methanol
CO formation
topic hydrogen
methanol
CO formation
description Methanol steam reforming reaction was studied over Cu(5 wt.%)/CeO2 with and without the presence of Zn. The Zn addition decreased the Cu+2 reducibility and increased the oxygen mobility of ceria. The main products were CO2 and H2 with small amount of CO. Selectivity to CO decreased with the Zn addition and it was lower at lower reaction temperatures and lower space velocities. At 230 ºC and W/F MeOH = 648 g min mol-1 selectivities to H2 and to CO2 were 100% on Zn/Cu/Ce. The catalytic results indicated that CO was mainly a secondary product formed from reverse water gas shift reaction.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800007
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800007
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422011000800007
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.34 n.8 2011
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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