Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst

Autores
Barroso, Mariana Noelia; Gomez, Manuel Francisco; Arrua, Luis Alberto; Abello, Maria Cristina
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A Co/MgAl2O4 catalyst with Ce addition was prepared and characterized by different techniques (BET, XRD, SEM-EDX, TPR and TG-TPO). Its catalytic performance was tested in the ethanol steam reforming reaction at 650°C and a W/FC2H5OH= 50 g min mol−1 using different H2O:C2H5OH molar ratios (MR) in the feed. The presence of Ce on catalyst markedly increased selectivity of hydrogen (from 3.2 to 5.2 molH2/molC2H5OH for MR=4.8) and carbon resistance. The increase of H2O:C2H5OH molar ratio led to a significant decrease in the CO/CO2 ratio (from 0.84 for RM=4.8 to 0.5 for RM=8) and in the carbon amount after 7 h on stream (from 22.9% for RM=4.8 to 6.8% for RM=8). Molar ratios higher than 6 did not significantly improve the catalytic performance. Taking into account previous studies about thermal balance of this reaction, the optimum molar ratio in the ethanol steam reforming seems to be around 6. The ethanol conversion was nearly constant after 7 h in spite of the carbon amount detected by TG-TPO and SEM-EDX. It could be inferred that an important Co fraction was exposed on the filament tips and/or a fraction of carbonaceous species was deposited on the support surface.
Fil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Gomez, Manuel Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Materia
Ethanol Steam Reforming
Hydrogen Production
Co Catalyst
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/5847
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/5847
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalystBarroso, Mariana NoeliaGomez, Manuel FranciscoArrua, Luis AlbertoAbello, Maria CristinaEthanol Steam ReformingHydrogen ProductionCo Catalysthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1A Co/MgAl2O4 catalyst with Ce addition was prepared and characterized by different techniques (BET, XRD, SEM-EDX, TPR and TG-TPO). Its catalytic performance was tested in the ethanol steam reforming reaction at 650°C and a W/FC2H5OH= 50 g min mol−1 using different H2O:C2H5OH molar ratios (MR) in the feed. The presence of Ce on catalyst markedly increased selectivity of hydrogen (from 3.2 to 5.2 molH2/molC2H5OH for MR=4.8) and carbon resistance. The increase of H2O:C2H5OH molar ratio led to a significant decrease in the CO/CO2 ratio (from 0.84 for RM=4.8 to 0.5 for RM=8) and in the carbon amount after 7 h on stream (from 22.9% for RM=4.8 to 6.8% for RM=8). Molar ratios higher than 6 did not significantly improve the catalytic performance. Taking into account previous studies about thermal balance of this reaction, the optimum molar ratio in the ethanol steam reforming seems to be around 6. The ethanol conversion was nearly constant after 7 h in spite of the carbon amount detected by TG-TPO and SEM-EDX. It could be inferred that an important Co fraction was exposed on the filament tips and/or a fraction of carbonaceous species was deposited on the support surface.Fil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Gomez, Manuel Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaFil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; ArgentinaSpringer2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5847Barroso, Mariana Noelia; Gomez, Manuel Francisco; Arrua, Luis Alberto; Abello, Maria Cristina; Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst; Springer; Reaction Kinetics, Mechanisms and Catalysis; 115; 2; 8-2015; 535-5461878-5190enginfo:eu-repo/semantics/altIdentifier/ark/http://link.springer.com/article/10.1007/s11144-015-0852-1info:eu-repo/semantics/altIdentifier/doi/10.1007/s11144-015-0852-1info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:17:29Zoai:ri.conicet.gov.ar:11336/5847instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:17:29.653CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
title Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
spellingShingle Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
Barroso, Mariana Noelia
Ethanol Steam Reforming
Hydrogen Production
Co Catalyst
title_short Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
title_full Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
title_fullStr Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
title_full_unstemmed Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
title_sort Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst
dc.creator.none.fl_str_mv Barroso, Mariana Noelia
Gomez, Manuel Francisco
Arrua, Luis Alberto
Abello, Maria Cristina
author Barroso, Mariana Noelia
author_facet Barroso, Mariana Noelia
Gomez, Manuel Francisco
Arrua, Luis Alberto
Abello, Maria Cristina
author_role author
author2 Gomez, Manuel Francisco
Arrua, Luis Alberto
Abello, Maria Cristina
author2_role author
author
author
dc.subject.none.fl_str_mv Ethanol Steam Reforming
Hydrogen Production
Co Catalyst
topic Ethanol Steam Reforming
Hydrogen Production
Co Catalyst
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A Co/MgAl2O4 catalyst with Ce addition was prepared and characterized by different techniques (BET, XRD, SEM-EDX, TPR and TG-TPO). Its catalytic performance was tested in the ethanol steam reforming reaction at 650°C and a W/FC2H5OH= 50 g min mol−1 using different H2O:C2H5OH molar ratios (MR) in the feed. The presence of Ce on catalyst markedly increased selectivity of hydrogen (from 3.2 to 5.2 molH2/molC2H5OH for MR=4.8) and carbon resistance. The increase of H2O:C2H5OH molar ratio led to a significant decrease in the CO/CO2 ratio (from 0.84 for RM=4.8 to 0.5 for RM=8) and in the carbon amount after 7 h on stream (from 22.9% for RM=4.8 to 6.8% for RM=8). Molar ratios higher than 6 did not significantly improve the catalytic performance. Taking into account previous studies about thermal balance of this reaction, the optimum molar ratio in the ethanol steam reforming seems to be around 6. The ethanol conversion was nearly constant after 7 h in spite of the carbon amount detected by TG-TPO and SEM-EDX. It could be inferred that an important Co fraction was exposed on the filament tips and/or a fraction of carbonaceous species was deposited on the support surface.
Fil: Barroso, Mariana Noelia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Gomez, Manuel Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Arrua, Luis Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
Fil: Abello, Maria Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Investigaciones En Tecnología Química; Argentina
description A Co/MgAl2O4 catalyst with Ce addition was prepared and characterized by different techniques (BET, XRD, SEM-EDX, TPR and TG-TPO). Its catalytic performance was tested in the ethanol steam reforming reaction at 650°C and a W/FC2H5OH= 50 g min mol−1 using different H2O:C2H5OH molar ratios (MR) in the feed. The presence of Ce on catalyst markedly increased selectivity of hydrogen (from 3.2 to 5.2 molH2/molC2H5OH for MR=4.8) and carbon resistance. The increase of H2O:C2H5OH molar ratio led to a significant decrease in the CO/CO2 ratio (from 0.84 for RM=4.8 to 0.5 for RM=8) and in the carbon amount after 7 h on stream (from 22.9% for RM=4.8 to 6.8% for RM=8). Molar ratios higher than 6 did not significantly improve the catalytic performance. Taking into account previous studies about thermal balance of this reaction, the optimum molar ratio in the ethanol steam reforming seems to be around 6. The ethanol conversion was nearly constant after 7 h in spite of the carbon amount detected by TG-TPO and SEM-EDX. It could be inferred that an important Co fraction was exposed on the filament tips and/or a fraction of carbonaceous species was deposited on the support surface.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/5847
Barroso, Mariana Noelia; Gomez, Manuel Francisco; Arrua, Luis Alberto; Abello, Maria Cristina; Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst; Springer; Reaction Kinetics, Mechanisms and Catalysis; 115; 2; 8-2015; 535-546
1878-5190
url http://hdl.handle.net/11336/5847
identifier_str_mv Barroso, Mariana Noelia; Gomez, Manuel Francisco; Arrua, Luis Alberto; Abello, Maria Cristina; Effect of the water-ethanol molar ratio in the ethanol steam reforming reaction over a Co/Ce/MgAl2O4 catalyst; Springer; Reaction Kinetics, Mechanisms and Catalysis; 115; 2; 8-2015; 535-546
1878-5190
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/ark/http://link.springer.com/article/10.1007/s11144-015-0852-1
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11144-015-0852-1
info:eu-repo/semantics/altIdentifier/doi/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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