Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies

The impact derived from incorporating water into CH4/CO2 biogas stream for the generation of syngas was investigated over the Rh/MgAl2O4 catalyst using operando steady-state and transient DRIFT spectroscopy coupled with MS. The incorporation of steam resulted in improved CH4 conversion rates and att...

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Autores: Garcilaso, Victoria, Blay-Roger, Rubén, González-Castaño, Miriam, Bobadilla, Luis F., Centeno, Miguel Ángel, Odriozola, José A.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/367160
Acceso en línea:http://hdl.handle.net/10261/367160
https://api.elsevier.com/content/abstract/scopus_id/85193745256
Access Level:acceso abierto
Palabra clave:Biogas
Catalysts
Molecules
Rivers
Spectroscopic analysis
Steam reforming
Synthesis gas
http://vocabularies.unesco.org/thesaurus/concept640
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spelling Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studiesGarcilaso, VictoriaBlay-Roger, RubénGonzález-Castaño, MiriamBobadilla, Luis F.Centeno, Miguel ÁngelOdriozola, José A.BiogasCatalystsMoleculesRiversSpectroscopic analysisSteam reformingSynthesis gashttp://vocabularies.unesco.org/thesaurus/concept640The impact derived from incorporating water into CH4/CO2 biogas stream for the generation of syngas was investigated over the Rh/MgAl2O4 catalyst using operando steady-state and transient DRIFT spectroscopy coupled with MS. The incorporation of steam resulted in improved CH4 conversion rates and attained syngas streams with higher H2/CO ratios. It was demonstrated that in the presence of steam, the generation of CHxO species through the reaction of CO* with active *OH species is favored at the metal support surface. Besides, the enhanced resistance delivered by water molecules towards deactivating the coking phenomena was associated with easier carbonaceous decomposition and the exposition of the very active Rh (100) surfaces for methane decomposition. The Rh/MgAl2O4 catalyst was demonstrated to be an effective catalyst for the production of H2-rich syngas streams. More importantly, the insights reported herein provide new evidences regarding the impact of steam on biogas reforming reactions.Dra. Miriam Gonzalez acknowledges to the EMERGIA program of the Junta de Andalucia by the EMC21_00052 contract. The authors acknowledge financial support from Spanish Ministry of Science through the projects NICER-BIOFUELS (PLEC2021-008086) financed by Next Generation European Funds and SMART-FTS (PID2021-126876OB-I00).Peer reviewedRoyal Society of Chemistry (UK)Ministerio de Ciencia e Innovación (España)Junta de AndalucíaEuropean CommissionAgencia Estatal de Investigación (España)0000-0002-3085-81340000-0003-2575-83980000-0003-0085-98110000-0002-8349-30440000-0002-8283-0459Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/367160https://api.elsevier.com/content/abstract/scopus_id/85193745256reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PLEC2021-008086info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126876OB-I00Catalysis Science and TechnologySíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3671602026-05-22T06:33:51Z
dc.title.none.fl_str_mv Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
title Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
spellingShingle Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
Garcilaso, Victoria
Biogas
Catalysts
Molecules
Rivers
Spectroscopic analysis
Steam reforming
Synthesis gas
http://vocabularies.unesco.org/thesaurus/concept640
title_short Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
title_full Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
title_fullStr Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
title_full_unstemmed Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
title_sort Monitoring the influence of steam on highly-active rhodium catalyst during the combined reforming of biogas by transient and steady-state operando spectroscopic studies
dc.creator.none.fl_str_mv Garcilaso, Victoria
Blay-Roger, Rubén
González-Castaño, Miriam
Bobadilla, Luis F.
Centeno, Miguel Ángel
Odriozola, José A.
author Garcilaso, Victoria
author_facet Garcilaso, Victoria
Blay-Roger, Rubén
González-Castaño, Miriam
Bobadilla, Luis F.
Centeno, Miguel Ángel
Odriozola, José A.
author_role author
author2 Blay-Roger, Rubén
González-Castaño, Miriam
Bobadilla, Luis F.
Centeno, Miguel Ángel
Odriozola, José A.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Junta de Andalucía
European Commission
Agencia Estatal de Investigación (España)
0000-0002-3085-8134
0000-0003-2575-8398
0000-0003-0085-9811
0000-0002-8349-3044
0000-0002-8283-0459
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Biogas
Catalysts
Molecules
Rivers
Spectroscopic analysis
Steam reforming
Synthesis gas
http://vocabularies.unesco.org/thesaurus/concept640
topic Biogas
Catalysts
Molecules
Rivers
Spectroscopic analysis
Steam reforming
Synthesis gas
http://vocabularies.unesco.org/thesaurus/concept640
description The impact derived from incorporating water into CH4/CO2 biogas stream for the generation of syngas was investigated over the Rh/MgAl2O4 catalyst using operando steady-state and transient DRIFT spectroscopy coupled with MS. The incorporation of steam resulted in improved CH4 conversion rates and attained syngas streams with higher H2/CO ratios. It was demonstrated that in the presence of steam, the generation of CHxO species through the reaction of CO* with active *OH species is favored at the metal support surface. Besides, the enhanced resistance delivered by water molecules towards deactivating the coking phenomena was associated with easier carbonaceous decomposition and the exposition of the very active Rh (100) surfaces for methane decomposition. The Rh/MgAl2O4 catalyst was demonstrated to be an effective catalyst for the production of H2-rich syngas streams. More importantly, the insights reported herein provide new evidences regarding the impact of steam on biogas reforming reactions.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/367160
https://api.elsevier.com/content/abstract/scopus_id/85193745256
url http://hdl.handle.net/10261/367160
https://api.elsevier.com/content/abstract/scopus_id/85193745256
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PLEC2021-008086
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-126876OB-I00
Catalysis Science and Technology
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry (UK)
publisher.none.fl_str_mv Royal Society of Chemistry (UK)
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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