Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis

[EN] Ru-Co/AlO and Ru-Fe/AlO have been prepared by the reduction-deposition method. This approach favours the interaction between Ru and Fe or Co in the final catalysts, while increasing surface enrichment of Ru. Their performance for the Fischer-Tropsch Synthesis (FTS) has been evaluated in a fixed...

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Detalhes bibliográficos
Autores: Liuzzi, Dalia, Pérez-Alonso, Francisco, Rojas Muñoz, Sergio
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2021
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/259930
Acesso em linha:http://hdl.handle.net/10261/259930
Access Level:Acceso aberto
Palavra-chave:Ruthenium
Fischer-Tropsch
Cobalt
Iron
Bimetallic
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spelling Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesisLiuzzi, DaliaPérez-Alonso, FranciscoRojas Muñoz, SergioRutheniumFischer-TropschCobaltIronBimetallic[EN] Ru-Co/AlO and Ru-Fe/AlO have been prepared by the reduction-deposition method. This approach favours the interaction between Ru and Fe or Co in the final catalysts, while increasing surface enrichment of Ru. Their performance for the Fischer-Tropsch Synthesis (FTS) has been evaluated in a fixed bed reactor. Ru-Co/AlO displays the highest activity in the series, doubling the steady-state CO conversion rate of a Ru/AlO catalyst with 3 times higher Ru loading. Ru-Fe/AlO displays higher initial CO conversion and -CH- productivity than Ru/AlO, but its activity declines during operation reaching lower conversion rates than Ru/AlO. In addition to CO, Ru-Fe/AlO produces oxygenated products, mainly alcohols. To a lesser extent, the formation of oxygenates over Ru-Co/AlO and Ru/AlO is also observed, and ascribed to the small crystallite size of the Ru particles. The evolution of CO during time on stream indicates that Fe is segregated to the surface of this catalyst during the FTS.Project 202080E278 from CSIC is acknowledged for financial support.Elsevier BVConsejo Superior de Investigaciones Científicas (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/259930reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.fuel.2021.120435Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2599302026-05-22T06:33:51Z
dc.title.none.fl_str_mv Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
title Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
spellingShingle Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
Liuzzi, Dalia
Ruthenium
Fischer-Tropsch
Cobalt
Iron
Bimetallic
title_short Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
title_full Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
title_fullStr Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
title_full_unstemmed Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
title_sort Ru-M (M = Fe or Co) Catalysts with high Ru surface concentration for Fischer-Tropsch synthesis
dc.creator.none.fl_str_mv Liuzzi, Dalia
Pérez-Alonso, Francisco
Rojas Muñoz, Sergio
author Liuzzi, Dalia
author_facet Liuzzi, Dalia
Pérez-Alonso, Francisco
Rojas Muñoz, Sergio
author_role author
author2 Pérez-Alonso, Francisco
Rojas Muñoz, Sergio
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ruthenium
Fischer-Tropsch
Cobalt
Iron
Bimetallic
topic Ruthenium
Fischer-Tropsch
Cobalt
Iron
Bimetallic
description [EN] Ru-Co/AlO and Ru-Fe/AlO have been prepared by the reduction-deposition method. This approach favours the interaction between Ru and Fe or Co in the final catalysts, while increasing surface enrichment of Ru. Their performance for the Fischer-Tropsch Synthesis (FTS) has been evaluated in a fixed bed reactor. Ru-Co/AlO displays the highest activity in the series, doubling the steady-state CO conversion rate of a Ru/AlO catalyst with 3 times higher Ru loading. Ru-Fe/AlO displays higher initial CO conversion and -CH- productivity than Ru/AlO, but its activity declines during operation reaching lower conversion rates than Ru/AlO. In addition to CO, Ru-Fe/AlO produces oxygenated products, mainly alcohols. To a lesser extent, the formation of oxygenates over Ru-Co/AlO and Ru/AlO is also observed, and ascribed to the small crystallite size of the Ru particles. The evolution of CO during time on stream indicates that Fe is segregated to the surface of this catalyst during the FTS.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/259930
url http://hdl.handle.net/10261/259930
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.fuel.2021.120435
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,228081

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