Preparation and characterization of Ru/MgO-Al2O3 catalysts for methane steam reforming
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
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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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 |
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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 |
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eng |
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eng |
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http://dx.doi.org/10.1016/j.cattod.2009.01.010 |
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Universidade Federal da Bahia (UFBA) |
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