Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor

The general aspects of the synthesis and characterization results of a CuOx/CeO2 catalyst were presented. In addition the principal steps for manufacturing a microchannel reactor and for the coating of the CuOx/CeO2 catalyst onto the microchannels walls, were also summarized. The catalytic activity...

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Autores: Laguna, Óscar H., Ngassa, E.M., Oraá, S., Álvarez, A., Domínguez, M. I., Romero Sarria, Francisca, Arzamendi, G., Gandía, L.M., Centeno, Miguel Ángel, Odriozola, José Antonio
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2012
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/123794
Acceso en línea:http://hdl.handle.net/10261/123794
Access Level:acceso abierto
Palabra clave:Microchannel reactor
CO-PROX
Computational fluid dynamics
CuOx/CeO2
Process intensification
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spelling Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactorLaguna, Óscar H.Ngassa, E.M.Oraá, S.Álvarez, A.Domínguez, M. I.Romero Sarria, FranciscaArzamendi, G.Gandía, L.M.Centeno, Miguel ÁngelOdriozola, José AntonioMicrochannel reactorCO-PROXComputational fluid dynamicsCuOx/CeO2Process intensificationThe general aspects of the synthesis and characterization results of a CuOx/CeO2 catalyst were presented. In addition the principal steps for manufacturing a microchannel reactor and for the coating of the CuOx/CeO2 catalyst onto the microchannels walls, were also summarized. The catalytic activity of this microchannel reactor during the preferential oxidation of CO (CO-PROX) was evaluated employing a feed-stream that simulates a reformate off-gas after the WGS unit. Two activation atmospheres were studied (H2/N2 and O2/N 2). The reducing pretreatment improved the resistance to deactivation by formation of carbonaceous species over the catalyst surface at high temperatures. The presence of H2O and CO2 in the feed-stream was also analyzed indicating that the adsorption of CO2 inhibited the conversion of CO at lower temperatures because these compounds modified the active sites through the formation of carbonaceous species on the catalyst surface. Finally, the experimental results of the microreactor performance were compared with CFD simulations that were carried out using a kinetic for the CuOx/CeO2 powder catalyst. The experimental results were reasonably well described by the model, thus confirming its validity.Peer ReviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]20122015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Preprintinfo:eu-repo/semantics/submittedVersionhttp://hdl.handle.net/10261/123794reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1237942026-05-22T06:33:51Z
dc.title.none.fl_str_mv Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
title Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
spellingShingle Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
Laguna, Óscar H.
Microchannel reactor
CO-PROX
Computational fluid dynamics
CuOx/CeO2
Process intensification
title_short Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
title_full Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
title_fullStr Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
title_full_unstemmed Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
title_sort Preferential oxidation of CO (CO-PROX) over CuOx/CeO2 coated microchannel reactor
dc.creator.none.fl_str_mv Laguna, Óscar H.
Ngassa, E.M.
Oraá, S.
Álvarez, A.
Domínguez, M. I.
Romero Sarria, Francisca
Arzamendi, G.
Gandía, L.M.
Centeno, Miguel Ángel
Odriozola, José Antonio
author Laguna, Óscar H.
author_facet Laguna, Óscar H.
Ngassa, E.M.
Oraá, S.
Álvarez, A.
Domínguez, M. I.
Romero Sarria, Francisca
Arzamendi, G.
Gandía, L.M.
Centeno, Miguel Ángel
Odriozola, José Antonio
author_role author
author2 Ngassa, E.M.
Oraá, S.
Álvarez, A.
Domínguez, M. I.
Romero Sarria, Francisca
Arzamendi, G.
Gandía, L.M.
Centeno, Miguel Ángel
Odriozola, José Antonio
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Microchannel reactor
CO-PROX
Computational fluid dynamics
CuOx/CeO2
Process intensification
topic Microchannel reactor
CO-PROX
Computational fluid dynamics
CuOx/CeO2
Process intensification
description The general aspects of the synthesis and characterization results of a CuOx/CeO2 catalyst were presented. In addition the principal steps for manufacturing a microchannel reactor and for the coating of the CuOx/CeO2 catalyst onto the microchannels walls, were also summarized. The catalytic activity of this microchannel reactor during the preferential oxidation of CO (CO-PROX) was evaluated employing a feed-stream that simulates a reformate off-gas after the WGS unit. Two activation atmospheres were studied (H2/N2 and O2/N 2). The reducing pretreatment improved the resistance to deactivation by formation of carbonaceous species over the catalyst surface at high temperatures. The presence of H2O and CO2 in the feed-stream was also analyzed indicating that the adsorption of CO2 inhibited the conversion of CO at lower temperatures because these compounds modified the active sites through the formation of carbonaceous species on the catalyst surface. Finally, the experimental results of the microreactor performance were compared with CFD simulations that were carried out using a kinetic for the CuOx/CeO2 powder catalyst. The experimental results were reasonably well described by the model, thus confirming its validity.
publishDate 2012
dc.date.none.fl_str_mv 2012
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Preprint
info:eu-repo/semantics/submittedVersion
format article
status_str submittedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/123794
url http://hdl.handle.net/10261/123794
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.81155

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