Methanol steam reforming over Cu/CeO2 catalysts: influence of zinc addition
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , |
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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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 |
format |
article |
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 |
_version_ |
1750318112386842624 |