Effect of aluminum on the properties of lanthana-supported nickel catalysts

Detalhes bibliográficos
Autor(a) principal: Lima, S. P. de
Data de Publicação: 2008
Outros Autores: Vicentini, V., Fierro, J. L. G., Varela, Maria do Carmo Rangel Santos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6318
Resumo: Acesso restrito: Texto completo. p. 925-930
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spelling Lima, S. P. deVicentini, V.Fierro, J. L. G.Varela, Maria do Carmo Rangel SantosLima, S. P. deVicentini, V.Fierro, J. L. G.Varela, Maria do Carmo Rangel Santos2012-07-04T16:34:17Z20080920-5861http://www.repositorio.ufba.br/ri/handle/ri/6318v. 133Acesso restrito: Texto completo. p. 925-930The effect of aluminum addition on the properties of lanthanum oxide was investigated in order to find new supports for catalytic purposes. Pure lanthanum oxide and aluminum-loaded lanthanum oxide were prepared by precipitation techniques and impregnation with nickel salt. The supports and the catalysts were characterized by several techniques and the catalysts were evaluated in methane steam reforming, an important commercial route to produce high purity hydrogen. The results showed that aluminum changed the properties of lanthana-supported nickel catalysts improving the activity in methane steam reforming and the selectivity to hydrogen. The aluminum-free catalyst showed low activity since the first hours of reaction. On the other hand, the aluminum-loaded catalyst showed high activity and selectivity to hydrogen, which increased even more during reaction. This finding can be explained in terms of the production of metallic nickel, from the nickel compounds in strong interaction with the support. Therefore, the most promising catalyst was the aluminum-loaded lanthana, which showed high activity, selectivity to hydrogen and stability under reaction conditions.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-07-04T16:34:17Z No. of bitstreams: 1 __ac.els-cdn.com_S092058...49d06454c831083244062e98830e2.pdf: 299484 bytes, checksum: 5f4203f9b7c83d6c717fa774aaf362cf (MD5)Made available in DSpace on 2012-07-04T16:34:17Z (GMT). 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dc.title.pt_BR.fl_str_mv Effect of aluminum on the properties of lanthana-supported nickel catalysts
dc.title.alternative.pt_BR.fl_str_mv Catalysis Today
title Effect of aluminum on the properties of lanthana-supported nickel catalysts
spellingShingle Effect of aluminum on the properties of lanthana-supported nickel catalysts
Lima, S. P. de
Steam methane reforming
Nickel
Lanthana
Hydrogen
Syngas
title_short Effect of aluminum on the properties of lanthana-supported nickel catalysts
title_full Effect of aluminum on the properties of lanthana-supported nickel catalysts
title_fullStr Effect of aluminum on the properties of lanthana-supported nickel catalysts
title_full_unstemmed Effect of aluminum on the properties of lanthana-supported nickel catalysts
title_sort Effect of aluminum on the properties of lanthana-supported nickel catalysts
author Lima, S. P. de
author_facet Lima, S. P. de
Vicentini, V.
Fierro, J. L. G.
Varela, Maria do Carmo Rangel Santos
author_role author
author2 Vicentini, V.
Fierro, J. L. G.
Varela, Maria do Carmo Rangel Santos
author2_role author
author
author
dc.contributor.author.fl_str_mv Lima, S. P. de
Vicentini, V.
Fierro, J. L. G.
Varela, Maria do Carmo Rangel Santos
Lima, S. P. de
Vicentini, V.
Fierro, J. L. G.
Varela, Maria do Carmo Rangel Santos
dc.subject.por.fl_str_mv Steam methane reforming
Nickel
Lanthana
Hydrogen
Syngas
topic Steam methane reforming
Nickel
Lanthana
Hydrogen
Syngas
description Acesso restrito: Texto completo. p. 925-930
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-07-04T16:34:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6318
dc.identifier.issn.none.fl_str_mv 0920-5861
dc.identifier.number.pt_BR.fl_str_mv v. 133
identifier_str_mv 0920-5861
v. 133
url http://www.repositorio.ufba.br/ri/handle/ri/6318
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.cattod.2007.12.065
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
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