VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity

Autores
Al Ghamdi, S.; Volpe, María Alicia; Hossain, M. M.; de Lasa, H.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study reports ethane oxidative dehydrogenation (ODH) using lattice oxygen. Ethane ODH is studied under an oxygen-free atmosphere employing a 10 wt.% VOx supported on c-Al2O3. TPR and TPO show that the prepared 10 wt.% VOx supported on c-alumina catalyst is a stable catalyst over repeated reduction and oxidation cycles. XRD shows the absence of V2O5 bulk surface species and a high dispersion of VOx on the support surface. Experiments are carried out in the CREC Fluidized Bed Riser Simulator at 550–600 °C and pressures close to atmospheric conditions. Reactivity tests show that the prepared ODH catalyst displays 6.5–27.6% ethane conversion and 57.6–84.5% ethylene selectivity in the 550–600 °C range. Metal–support interaction is assessed using ammonia TPD. This provides the desorption energy for both the bare c-Al2O3 support and for the VOx/c-Al2O3 catalyst. A slightly increased desorption energy is found when using the V-loaded catalyst. This shows low metal–support interactions and as a result, a well dispersed VOx catalyst phase with high availability of lattice oxygen for ODH. These findings are confirmed with XRD, showing no changes with respect to the XRD for the c-Al2O3 alumina support. This proves that there are no other species formed due to the interaction between the VOx surface species and the Al2O3 support.
Fil: Al Ghamdi, S. . Western University. Chemical Reactor Engineering Centre; Canadá
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica; Argentina
Fil: Hossain, M. M.. King Fahd University of Petroleum & Mineral. Department of Chemical Engineering; Arabia Saudita
Fil: de Lasa, H.. Western University. Chemical Reactor Engineering Centre; Canadá
Materia
Nh3-Tpd Kinetics
Oxidative Dehydrogenation
Ethylene
Vanadium Oxide
Lattice Oxide
Riser Simulator
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:11336/13462
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/13462
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activityAl Ghamdi, S. Volpe, María AliciaHossain, M. M.de Lasa, H.Nh3-Tpd KineticsOxidative DehydrogenationEthyleneVanadium OxideLattice OxideRiser Simulatorhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2This study reports ethane oxidative dehydrogenation (ODH) using lattice oxygen. Ethane ODH is studied under an oxygen-free atmosphere employing a 10 wt.% VOx supported on c-Al2O3. TPR and TPO show that the prepared 10 wt.% VOx supported on c-alumina catalyst is a stable catalyst over repeated reduction and oxidation cycles. XRD shows the absence of V2O5 bulk surface species and a high dispersion of VOx on the support surface. Experiments are carried out in the CREC Fluidized Bed Riser Simulator at 550–600 °C and pressures close to atmospheric conditions. Reactivity tests show that the prepared ODH catalyst displays 6.5–27.6% ethane conversion and 57.6–84.5% ethylene selectivity in the 550–600 °C range. Metal–support interaction is assessed using ammonia TPD. This provides the desorption energy for both the bare c-Al2O3 support and for the VOx/c-Al2O3 catalyst. A slightly increased desorption energy is found when using the V-loaded catalyst. This shows low metal–support interactions and as a result, a well dispersed VOx catalyst phase with high availability of lattice oxygen for ODH. These findings are confirmed with XRD, showing no changes with respect to the XRD for the c-Al2O3 alumina support. This proves that there are no other species formed due to the interaction between the VOx surface species and the Al2O3 support.Fil: Al Ghamdi, S. . Western University. Chemical Reactor Engineering Centre; CanadáFil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica; ArgentinaFil: Hossain, M. M.. King Fahd University of Petroleum & Mineral. Department of Chemical Engineering; Arabia SauditaFil: de Lasa, H.. Western University. Chemical Reactor Engineering Centre; CanadáElsevier Science2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13462Al Ghamdi, S. ; Volpe, María Alicia; Hossain, M. M.; de Lasa, H.; VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity; Elsevier Science; Applied Catalysis A: General; 450; 1-2013; 120-1300926-860Xenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X12006552info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2012.10.007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:09:32Zoai:ri.conicet.gov.ar:11336/13462instacron: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:34982025-10-22 11:09:32.518CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
title VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
spellingShingle VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
Al Ghamdi, S.
Nh3-Tpd Kinetics
Oxidative Dehydrogenation
Ethylene
Vanadium Oxide
Lattice Oxide
Riser Simulator
title_short VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
title_full VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
title_fullStr VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
title_full_unstemmed VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
title_sort VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity
dc.creator.none.fl_str_mv Al Ghamdi, S.
Volpe, María Alicia
Hossain, M. M.
de Lasa, H.
author Al Ghamdi, S.
author_facet Al Ghamdi, S.
Volpe, María Alicia
Hossain, M. M.
de Lasa, H.
author_role author
author2 Volpe, María Alicia
Hossain, M. M.
de Lasa, H.
author2_role author
author
author
dc.subject.none.fl_str_mv Nh3-Tpd Kinetics
Oxidative Dehydrogenation
Ethylene
Vanadium Oxide
Lattice Oxide
Riser Simulator
topic Nh3-Tpd Kinetics
Oxidative Dehydrogenation
Ethylene
Vanadium Oxide
Lattice Oxide
Riser Simulator
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This study reports ethane oxidative dehydrogenation (ODH) using lattice oxygen. Ethane ODH is studied under an oxygen-free atmosphere employing a 10 wt.% VOx supported on c-Al2O3. TPR and TPO show that the prepared 10 wt.% VOx supported on c-alumina catalyst is a stable catalyst over repeated reduction and oxidation cycles. XRD shows the absence of V2O5 bulk surface species and a high dispersion of VOx on the support surface. Experiments are carried out in the CREC Fluidized Bed Riser Simulator at 550–600 °C and pressures close to atmospheric conditions. Reactivity tests show that the prepared ODH catalyst displays 6.5–27.6% ethane conversion and 57.6–84.5% ethylene selectivity in the 550–600 °C range. Metal–support interaction is assessed using ammonia TPD. This provides the desorption energy for both the bare c-Al2O3 support and for the VOx/c-Al2O3 catalyst. A slightly increased desorption energy is found when using the V-loaded catalyst. This shows low metal–support interactions and as a result, a well dispersed VOx catalyst phase with high availability of lattice oxygen for ODH. These findings are confirmed with XRD, showing no changes with respect to the XRD for the c-Al2O3 alumina support. This proves that there are no other species formed due to the interaction between the VOx surface species and the Al2O3 support.
Fil: Al Ghamdi, S. . Western University. Chemical Reactor Engineering Centre; Canadá
Fil: Volpe, María Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Planta Piloto de Ingeniería Química (i); Argentina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica; Argentina
Fil: Hossain, M. M.. King Fahd University of Petroleum & Mineral. Department of Chemical Engineering; Arabia Saudita
Fil: de Lasa, H.. Western University. Chemical Reactor Engineering Centre; Canadá
description This study reports ethane oxidative dehydrogenation (ODH) using lattice oxygen. Ethane ODH is studied under an oxygen-free atmosphere employing a 10 wt.% VOx supported on c-Al2O3. TPR and TPO show that the prepared 10 wt.% VOx supported on c-alumina catalyst is a stable catalyst over repeated reduction and oxidation cycles. XRD shows the absence of V2O5 bulk surface species and a high dispersion of VOx on the support surface. Experiments are carried out in the CREC Fluidized Bed Riser Simulator at 550–600 °C and pressures close to atmospheric conditions. Reactivity tests show that the prepared ODH catalyst displays 6.5–27.6% ethane conversion and 57.6–84.5% ethylene selectivity in the 550–600 °C range. Metal–support interaction is assessed using ammonia TPD. This provides the desorption energy for both the bare c-Al2O3 support and for the VOx/c-Al2O3 catalyst. A slightly increased desorption energy is found when using the V-loaded catalyst. This shows low metal–support interactions and as a result, a well dispersed VOx catalyst phase with high availability of lattice oxygen for ODH. These findings are confirmed with XRD, showing no changes with respect to the XRD for the c-Al2O3 alumina support. This proves that there are no other species formed due to the interaction between the VOx surface species and the Al2O3 support.
publishDate 2013
dc.date.none.fl_str_mv 2013-01
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/11336/13462
Al Ghamdi, S. ; Volpe, María Alicia; Hossain, M. M.; de Lasa, H.; VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity; Elsevier Science; Applied Catalysis A: General; 450; 1-2013; 120-130
0926-860X
url http://hdl.handle.net/11336/13462
identifier_str_mv Al Ghamdi, S. ; Volpe, María Alicia; Hossain, M. M.; de Lasa, H.; VOx/c-Al2O3 catalyst for oxidative dehydrogenation of ethane to ethylene: desorption kinetics and catalytic activity; Elsevier Science; Applied Catalysis A: General; 450; 1-2013; 120-130
0926-860X
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/S0926860X12006552
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2012.10.007
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
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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score 12.982451

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