Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming

Detalhes bibliográficos
Autor(a) principal: Carvalho, Luciene Santos de
Data de Publicação: 2009
Outros Autores: Martins, André Rosa, Reyes, Patrício, Oportus, Marcelo, Albornoz, Alberto, Vicentini, Valéria, 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/13208
Resumo: Texto completo: acesso restrito. p. 52-60
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spelling Carvalho, Luciene Santos deMartins, André RosaReyes, PatrícioOportus, MarceloAlbornoz, AlbertoVicentini, ValériaVarela, Maria do Carmo Rangel SantosCarvalho, Luciene Santos deMartins, André RosaReyes, PatrícioOportus, MarceloAlbornoz, AlbertoVicentini, ValériaVarela, Maria do Carmo Rangel Santos2013-10-14T13:01:16Z20090920-5861http://www.repositorio.ufba.br/ri/handle/ri/13208v. 142, n. 1-2Texto completo: acesso restrito. p. 52-60The preparation and characterization of aluminum and magnesium oxides-supported ruthenium were described in this work, aiming to compare different supports to methane steam reforming catalysts for producing hydrogen. Gama-alumina-supported ruthenium and periclase-supported ruthenium were produced. The addition of small amounts of magnesium to alumina-supported ruthenium in the range of Mg/Al (molar) = 0.2–0.5 did not change the gama-alumina structure while high amounts (Mg/Al (molar) = 5) led to the production of periclase. Magnesium caused a decrease of specific surface area of alumina-supported ruthenium catalysts and this effect increased with the amount of the metal in solids. Magnesium also decreased the acidity of alumina-supported ruthenium and generated electron deficient ruthenium species, besides increasing their interaction with the support. The addition of magnesium increased the ruthenium dispersion but did not increase the methane conversion, suggesting that it negatively changed the electron properties of ruthenium towards methane conversion. However, it avoided deactivation during reaction and changed the activity for the water gas shift reaction, allowing tailoring the hydrogen to carbon monoxide molar ratio. The catalysts showed activity close or higher than a commercial sample, indicating that they are promising for the reaction, with the advantage that it can be tailored for several applications.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-10-14T13:01:16Z No. of bitstreams: 1 1-s2.0-S0920586109000297-main.pdf: 1090516 bytes, checksum: bad6eaad85a853c413e6119c876181eb (MD5)Made available in DSpace on 2013-10-14T13:01:16Z (GMT). No. of bitstreams: 1 1-s2.0-S0920586109000297-main.pdf: 1090516 bytes, checksum: bad6eaad85a853c413e6119c876181eb (MD5) Previous issue date: 2009http://dx.doi.org/10.1016/j.cattod.2009.01.010reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASteam reformingHydrogen productionRuthenium catalystMg-Al oxidePreparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reformingCatalysis Todayinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL1-s2.0-S0920586109000297-main.pdf1-s2.0-S0920586109000297-main.pdfapplication/pdf1090516https://repositorio.ufba.br/bitstream/ri/13208/1/1-s2.0-S0920586109000297-main.pdfbad6eaad85a853c413e6119c876181ebMD51LICENSElicense.txtlicense.txttext/plain1365https://repositorio.ufba.br/bitstream/ri/13208/2/license.txt5371a150bdc863f78dcf39281543bd86MD52TEXT1-s2.0-S0920586109000297-main.pdf.txt1-s2.0-S0920586109000297-main.pdf.txtExtracted texttext/plain34829https://repositorio.ufba.br/bitstream/ri/13208/3/1-s2.0-S0920586109000297-main.pdf.txt167669df424a70b0b518d7ef0e927e42MD53ri/132082022-07-05 14:03:36.432oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:36Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
dc.title.alternative.pt_BR.fl_str_mv Catalysis Today
title Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
spellingShingle Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
Carvalho, Luciene Santos de
Steam reforming
Hydrogen production
Ruthenium catalyst
Mg-Al oxide
title_short Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
title_full Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
title_fullStr Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
title_full_unstemmed Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
title_sort Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
author Carvalho, Luciene Santos de
author_facet Carvalho, Luciene Santos de
Martins, André Rosa
Reyes, Patrício
Oportus, Marcelo
Albornoz, Alberto
Vicentini, Valéria
Varela, Maria do Carmo Rangel Santos
author_role author
author2 Martins, André Rosa
Reyes, Patrício
Oportus, Marcelo
Albornoz, Alberto
Vicentini, Valéria
Varela, Maria do Carmo Rangel Santos
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Carvalho, Luciene Santos de
Martins, André Rosa
Reyes, Patrício
Oportus, Marcelo
Albornoz, Alberto
Vicentini, Valéria
Varela, Maria do Carmo Rangel Santos
Carvalho, Luciene Santos de
Martins, André Rosa
Reyes, Patrício
Oportus, Marcelo
Albornoz, Alberto
Vicentini, Valéria
Varela, Maria do Carmo Rangel Santos
dc.subject.por.fl_str_mv Steam reforming
Hydrogen production
Ruthenium catalyst
Mg-Al oxide
topic Steam reforming
Hydrogen production
Ruthenium catalyst
Mg-Al oxide
description Texto completo: acesso restrito. p. 52-60
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2013-10-14T13:01:16Z
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/13208
dc.identifier.issn.none.fl_str_mv 0920-5861
dc.identifier.number.pt_BR.fl_str_mv v. 142, n. 1-2
identifier_str_mv 0920-5861
v. 142, n. 1-2
url http://www.repositorio.ufba.br/ri/handle/ri/13208
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.2009.01.010
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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