Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor
[EN] An intensification process for the selective oxidation of hydrocarbons integrates a catalytic reactor and an oxygen separation membrane. This work presents the study of oxidative dehydrogenation of ethane at 1123 K in a catalytic membrane reactor based on mixed ionic-electronic conducting (MIEC...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/33998 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/33998 |
| Access Level: | acceso abierto |
| Palabra clave: | Cerium Heterogeneous catalysis Membrane reactors Oxidative dehydrogenation of ethane |
| id |
ES_7551a2a3215fb13799e7fcdee3bdcfda |
|---|---|
| oai_identifier_str |
oai:riunet.upv.es:10251/33998 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane ReactorLobera González, Maria PilarGarcía Fayos, JulioBalaguer Ramirez, Maria|||0000-0002-7098-9235Serra Alfaro, José Manuel|||0000-0002-1515-1106CeriumHeterogeneous catalysisMembrane reactorsOxidative dehydrogenation of ethane[EN] An intensification process for the selective oxidation of hydrocarbons integrates a catalytic reactor and an oxygen separation membrane. This work presents the study of oxidative dehydrogenation of ethane at 1123 K in a catalytic membrane reactor based on mixed ionic-electronic conducting (MIEC) membranes. The surface of a membrane made of Ba0.5Sr0.5Co0.8Fe0.2O3-d has been activated using different porous catalytic layers based on rare earth-doped cerias (fluorite structure) and the porous catalytic coating was deposited by screen printing (coating around 15 mu m). The different catalyst formulations were developed by partial substitution of Ce and were synthesized by co-precipitation followed by cobalt impregnation when required. Specifically, seven different catalysts based on the system Ce1-xLnxO2-d (x=0.1 or 0.2; Ln=Tb, Pr, Er, Gd, and Tb+Er), including the effect of cobalt addition (2?% molar) in Ce0.8Tb0.2O2-d, were studied. The ceria catalysts were studied by XRD, SEM, DC-conductivity as a function of oxygen partial pressure, and the high-temperature stability in a CO2 environment was assessed using thermogravimetry. Then, the influence of the ceria catalytic coating on the oxygen permeation flux through the MIEC membrane was studied using argon and methane as the sweep gas in the permeate side. Finally, oxidative dehydrogenation of ethane reaction tests were performed at 1123 K, as a function of the ethane concentration in the feed. The use of a disk-shaped membrane in the reactor made it possible to prevent the direct contact of gaseous oxygen and hydrocarbons and thus to increase the ethylene yield. High ethylene yields (up to approximate to 84?%) were obtained using a catalytic coating based on 20?% Tb-doped ceria including macropores produced by the addition of graphite platelets in the screen printing ink. The high yields obtained in this kind of catalytic membrane are attributed to the combination of: the high catalytic activity; the control of the oxygen concentration in the gas phase (reaction chamber); and the appropriate fluid dynamics, enabling the fast ethylene evacuation.Financial support by the Spanish Ministry for Science and Innovation (ENE2011-24761 FPI BES-2009-015835 grants), EU through FP7 NASA-OTM Project (NMP3-SL-2009-228701), and the Helmholtz Association of German Research Centres through the Helmholtz Alliance MEM-BRAIN (Initiative and Networking Fund) is kindly acknowledged.Wiley-VCH VerlagInstituto Universitario Mixto de Tecnología QuímicaMinisterio de Ciencia e InnovaciónEuropean CommissionHelmholtz Association of German Research CentersRepositorio Institucional de la Universitat Politècnica de València Riunet20122012-12-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/33998reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 ENE2011-24761 DESARROLLO DE NUEVOS DISPOSITIVOS IONICOS PARA LA PRODUCCION EFICIENTE Y SOSTENIBLE DE ENERGIA Y PRODUCTOS QUIMICOS%2FCOMBUSTIBLESMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 BES-2009-015835-2 BES-2009-015835-2European Commission https://doi.org/10.13039/501100000780 FP7 228701 NAnostructured Surface Activated ultra-thin Oxygen Transport Membraneopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/339982026-06-13T07:49:27Z |
| dc.title.none.fl_str_mv |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| title |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| spellingShingle |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor Lobera González, Maria Pilar Cerium Heterogeneous catalysis Membrane reactors Oxidative dehydrogenation of ethane |
| title_short |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| title_full |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| title_fullStr |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| title_full_unstemmed |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| title_sort |
Rare Earth-doped Ceria Catalysts for ODHE Reaction in a Catalytic Modified MIEC Membrane Reactor |
| dc.creator.none.fl_str_mv |
Lobera González, Maria Pilar García Fayos, Julio Balaguer Ramirez, Maria|||0000-0002-7098-9235 Serra Alfaro, José Manuel|||0000-0002-1515-1106 |
| author |
Lobera González, Maria Pilar |
| author_facet |
Lobera González, Maria Pilar García Fayos, Julio Balaguer Ramirez, Maria|||0000-0002-7098-9235 Serra Alfaro, José Manuel|||0000-0002-1515-1106 |
| author_role |
author |
| author2 |
García Fayos, Julio Balaguer Ramirez, Maria|||0000-0002-7098-9235 Serra Alfaro, José Manuel|||0000-0002-1515-1106 |
| author2_role |
author author author |
| dc.contributor.none.fl_str_mv |
Instituto Universitario Mixto de Tecnología Química Ministerio de Ciencia e Innovación European Commission Helmholtz Association of German Research Centers Repositorio Institucional de la Universitat Politècnica de València Riunet |
| dc.subject.none.fl_str_mv |
Cerium Heterogeneous catalysis Membrane reactors Oxidative dehydrogenation of ethane |
| topic |
Cerium Heterogeneous catalysis Membrane reactors Oxidative dehydrogenation of ethane |
| description |
[EN] An intensification process for the selective oxidation of hydrocarbons integrates a catalytic reactor and an oxygen separation membrane. This work presents the study of oxidative dehydrogenation of ethane at 1123 K in a catalytic membrane reactor based on mixed ionic-electronic conducting (MIEC) membranes. The surface of a membrane made of Ba0.5Sr0.5Co0.8Fe0.2O3-d has been activated using different porous catalytic layers based on rare earth-doped cerias (fluorite structure) and the porous catalytic coating was deposited by screen printing (coating around 15 mu m). The different catalyst formulations were developed by partial substitution of Ce and were synthesized by co-precipitation followed by cobalt impregnation when required. Specifically, seven different catalysts based on the system Ce1-xLnxO2-d (x=0.1 or 0.2; Ln=Tb, Pr, Er, Gd, and Tb+Er), including the effect of cobalt addition (2?% molar) in Ce0.8Tb0.2O2-d, were studied. The ceria catalysts were studied by XRD, SEM, DC-conductivity as a function of oxygen partial pressure, and the high-temperature stability in a CO2 environment was assessed using thermogravimetry. Then, the influence of the ceria catalytic coating on the oxygen permeation flux through the MIEC membrane was studied using argon and methane as the sweep gas in the permeate side. Finally, oxidative dehydrogenation of ethane reaction tests were performed at 1123 K, as a function of the ethane concentration in the feed. The use of a disk-shaped membrane in the reactor made it possible to prevent the direct contact of gaseous oxygen and hydrocarbons and thus to increase the ethylene yield. High ethylene yields (up to approximate to 84?%) were obtained using a catalytic coating based on 20?% Tb-doped ceria including macropores produced by the addition of graphite platelets in the screen printing ink. The high yields obtained in this kind of catalytic membrane are attributed to the combination of: the high catalytic activity; the control of the oxygen concentration in the gas phase (reaction chamber); and the appropriate fluid dynamics, enabling the fast ethylene evacuation. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 2012-12-01 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://riunet.upv.es/handle/10251/33998 |
| url |
https://riunet.upv.es/handle/10251/33998 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.relation.none.fl_str_mv |
Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 ENE2011-24761 DESARROLLO DE NUEVOS DISPOSITIVOS IONICOS PARA LA PRODUCCION EFICIENTE Y SOSTENIBLE DE ENERGIA Y PRODUCTOS QUIMICOS%2FCOMBUSTIBLES Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 BES-2009-015835-2 BES-2009-015835-2 European Commission https://doi.org/10.13039/501100000780 FP7 228701 NAnostructured Surface Activated ultra-thin Oxygen Transport Membrane |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Reserva de todos los derechos http://rightsstatements.org/vocab/InC/1.0/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Reserva de todos los derechos http://rightsstatements.org/vocab/InC/1.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Wiley-VCH Verlag |
| publisher.none.fl_str_mv |
Wiley-VCH Verlag |
| dc.source.none.fl_str_mv |
reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname:Universitat Politècnica de València (UPV) |
| instname_str |
Universitat Politècnica de València (UPV) |
| reponame_str |
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| collection |
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869410971867414528 |
| score |
15,300719 |