Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content

Autores
Dieuzeide, María Laura; Jobbagy, Matias; Amadeo, Norma Elvira
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Ni based catalysts supported over γ-Al2O3, previously modified with increasing contents of Mg(II), were employed for the steam reforming of glycerol. The aim of the present study is to analyze the effect of the content of Mg(II), as a promoter of Ni/γ-Al2O3 catalysts, on the textural and structural characteristics of the solid; as well as on the catalytic activity and selectivity to H2 in the steam reforming of glycerol. Fresh samples were characterized by PXRD, BET surface area, H2 chemisorption, TPR, and CO2-TPD. Used catalysts were analyzed by TPO, in order to study the effect of Mg(II) on carbon gasification. Both fresh and used samples were examined by SEM. The content of Mg(II) has both an effect on the catalytic performance and on the structural and textural characteristics of the catalysts. The incorporation of Mg(II) results in the formation of Mg1−xAl2O4−x spinel phase. The differences in catalytic properties due to the increasing content of Mg(II) have effect simultaneously on the Ni° crystallite size, on the acidic?basic character and on the interactions between NiO and support. For the catalysts promoted with Mg(II), the best activity for the steam reforming of glycerol was achieved with Ni(10)Mg(3)Al catalyst while the Ni(10)Mg(15)Al catalyst formed the lowest amount of carbon during reaction time on stream. The catalyst prepared without Mg(II) presented good activity results despite the lowest Ni dispersion. This behaviour was assigned to the presence of Ni sites more active for the steam reforming of glycerol than the ones on the catalyst promoted with Mg(II). However, this catalyst had the highest carbon deposition during reaction time on stream. High contents of Mg(II) inhibited carbon formation, this was evidenced by TPO analyses performed to used samples. Low carbon formation at high Mg(II) could be related to the higher basic character of the support as the content of Mg(II) increases.
Fil: Dieuzeide, María Laura. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; Argentina
Fil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
Fil: Amadeo, Norma Elvira. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; Argentina
Materia
Glycerol
Ni/Al2o3
Steam Reforming
Mg(Ii)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7818

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network_name_str CONICET Digital (CONICET)
spelling Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) contentDieuzeide, María LauraJobbagy, MatiasAmadeo, Norma ElviraGlycerolNi/Al2o3Steam ReformingMg(Ii)https://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Ni based catalysts supported over γ-Al2O3, previously modified with increasing contents of Mg(II), were employed for the steam reforming of glycerol. The aim of the present study is to analyze the effect of the content of Mg(II), as a promoter of Ni/γ-Al2O3 catalysts, on the textural and structural characteristics of the solid; as well as on the catalytic activity and selectivity to H2 in the steam reforming of glycerol. Fresh samples were characterized by PXRD, BET surface area, H2 chemisorption, TPR, and CO2-TPD. Used catalysts were analyzed by TPO, in order to study the effect of Mg(II) on carbon gasification. Both fresh and used samples were examined by SEM. The content of Mg(II) has both an effect on the catalytic performance and on the structural and textural characteristics of the catalysts. The incorporation of Mg(II) results in the formation of Mg1−xAl2O4−x spinel phase. The differences in catalytic properties due to the increasing content of Mg(II) have effect simultaneously on the Ni° crystallite size, on the acidic?basic character and on the interactions between NiO and support. For the catalysts promoted with Mg(II), the best activity for the steam reforming of glycerol was achieved with Ni(10)Mg(3)Al catalyst while the Ni(10)Mg(15)Al catalyst formed the lowest amount of carbon during reaction time on stream. The catalyst prepared without Mg(II) presented good activity results despite the lowest Ni dispersion. This behaviour was assigned to the presence of Ni sites more active for the steam reforming of glycerol than the ones on the catalyst promoted with Mg(II). However, this catalyst had the highest carbon deposition during reaction time on stream. High contents of Mg(II) inhibited carbon formation, this was evidenced by TPO analyses performed to used samples. Low carbon formation at high Mg(II) could be related to the higher basic character of the support as the content of Mg(II) increases.Fil: Dieuzeide, María Laura. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; ArgentinaFil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; ArgentinaFil: Amadeo, Norma Elvira. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; ArgentinaElsevier Science2013-04-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7818Dieuzeide, María Laura; Jobbagy, Matias; Amadeo, Norma Elvira; Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content; Elsevier Science; Catalysis Today; 213; 3-4-2013; 50-570920-5861enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S092058611300076Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2013.02.015info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:54Zoai:ri.conicet.gov.ar:11336/7818instacron: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 10:47:54.737CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
title Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
spellingShingle Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
Dieuzeide, María Laura
Glycerol
Ni/Al2o3
Steam Reforming
Mg(Ii)
title_short Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
title_full Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
title_fullStr Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
title_full_unstemmed Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
title_sort Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content
dc.creator.none.fl_str_mv Dieuzeide, María Laura
Jobbagy, Matias
Amadeo, Norma Elvira
author Dieuzeide, María Laura
author_facet Dieuzeide, María Laura
Jobbagy, Matias
Amadeo, Norma Elvira
author_role author
author2 Jobbagy, Matias
Amadeo, Norma Elvira
author2_role author
author
dc.subject.none.fl_str_mv Glycerol
Ni/Al2o3
Steam Reforming
Mg(Ii)
topic Glycerol
Ni/Al2o3
Steam Reforming
Mg(Ii)
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Ni based catalysts supported over γ-Al2O3, previously modified with increasing contents of Mg(II), were employed for the steam reforming of glycerol. The aim of the present study is to analyze the effect of the content of Mg(II), as a promoter of Ni/γ-Al2O3 catalysts, on the textural and structural characteristics of the solid; as well as on the catalytic activity and selectivity to H2 in the steam reforming of glycerol. Fresh samples were characterized by PXRD, BET surface area, H2 chemisorption, TPR, and CO2-TPD. Used catalysts were analyzed by TPO, in order to study the effect of Mg(II) on carbon gasification. Both fresh and used samples were examined by SEM. The content of Mg(II) has both an effect on the catalytic performance and on the structural and textural characteristics of the catalysts. The incorporation of Mg(II) results in the formation of Mg1−xAl2O4−x spinel phase. The differences in catalytic properties due to the increasing content of Mg(II) have effect simultaneously on the Ni° crystallite size, on the acidic?basic character and on the interactions between NiO and support. For the catalysts promoted with Mg(II), the best activity for the steam reforming of glycerol was achieved with Ni(10)Mg(3)Al catalyst while the Ni(10)Mg(15)Al catalyst formed the lowest amount of carbon during reaction time on stream. The catalyst prepared without Mg(II) presented good activity results despite the lowest Ni dispersion. This behaviour was assigned to the presence of Ni sites more active for the steam reforming of glycerol than the ones on the catalyst promoted with Mg(II). However, this catalyst had the highest carbon deposition during reaction time on stream. High contents of Mg(II) inhibited carbon formation, this was evidenced by TPO analyses performed to used samples. Low carbon formation at high Mg(II) could be related to the higher basic character of the support as the content of Mg(II) increases.
Fil: Dieuzeide, María Laura. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; Argentina
Fil: Jobbagy, Matias. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de Los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires; Argentina
Fil: Amadeo, Norma Elvira. Universidad de Buenos Aires. Facultad de Ingenieria. Departamento de Ingenieria Quimica. Laboratorio de Procesos Cataliticos; Argentina
description Ni based catalysts supported over γ-Al2O3, previously modified with increasing contents of Mg(II), were employed for the steam reforming of glycerol. The aim of the present study is to analyze the effect of the content of Mg(II), as a promoter of Ni/γ-Al2O3 catalysts, on the textural and structural characteristics of the solid; as well as on the catalytic activity and selectivity to H2 in the steam reforming of glycerol. Fresh samples were characterized by PXRD, BET surface area, H2 chemisorption, TPR, and CO2-TPD. Used catalysts were analyzed by TPO, in order to study the effect of Mg(II) on carbon gasification. Both fresh and used samples were examined by SEM. The content of Mg(II) has both an effect on the catalytic performance and on the structural and textural characteristics of the catalysts. The incorporation of Mg(II) results in the formation of Mg1−xAl2O4−x spinel phase. The differences in catalytic properties due to the increasing content of Mg(II) have effect simultaneously on the Ni° crystallite size, on the acidic?basic character and on the interactions between NiO and support. For the catalysts promoted with Mg(II), the best activity for the steam reforming of glycerol was achieved with Ni(10)Mg(3)Al catalyst while the Ni(10)Mg(15)Al catalyst formed the lowest amount of carbon during reaction time on stream. The catalyst prepared without Mg(II) presented good activity results despite the lowest Ni dispersion. This behaviour was assigned to the presence of Ni sites more active for the steam reforming of glycerol than the ones on the catalyst promoted with Mg(II). However, this catalyst had the highest carbon deposition during reaction time on stream. High contents of Mg(II) inhibited carbon formation, this was evidenced by TPO analyses performed to used samples. Low carbon formation at high Mg(II) could be related to the higher basic character of the support as the content of Mg(II) increases.
publishDate 2013
dc.date.none.fl_str_mv 2013-04-03
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/11336/7818
Dieuzeide, María Laura; Jobbagy, Matias; Amadeo, Norma Elvira; Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content; Elsevier Science; Catalysis Today; 213; 3-4-2013; 50-57
0920-5861
url http://hdl.handle.net/11336/7818
identifier_str_mv Dieuzeide, María Laura; Jobbagy, Matias; Amadeo, Norma Elvira; Glycerol steam reforming over Ni/Al2O3 catalysts, modified with Mg(II). Effect of Mg (II) content; Elsevier Science; Catalysis Today; 213; 3-4-2013; 50-57
0920-5861
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S092058611300076X
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2013.02.015
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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