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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/7818
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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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1844614524193210368 |
score |
13.070432 |