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Influence of the O2/CO ratio and the presence of H2O and CO2 in the feed-stream during the preferential oxidation of CO (PROX) over a CuOx/CeO2-coated microchannel reactor

 

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dc.creator Laguna Espitia, Oscar Hernando es
dc.creator Domínguez Leal, María Isabel es
dc.creator Oraá, Sara es
dc.creator Navajas, Alberto es
dc.creator Arzamendi, Gurutze es
dc.creator Gandía, L. M. es
dc.creator Centeno Gallego, Miguel Ángel es
dc.creator Montes, Mario es
dc.creator Odriozola Gordón, José Antonio es
dc.date.accessioned 2018-03-02T15:15:56Z
dc.date.available 2018-03-02T15:15:56Z
dc.date.issued 2013
dc.identifier.citation Laguna Espitia, O.H., Domínguez Leal, M.I., Oraá, S., Navajas, A., Arzamendi, G., Gandía, L.M.,...,Odriozola Gordón, J.A. (2013). Influence of the O2/CO ratio and the presence of H2O and CO2 in the feed-stream during the preferential oxidation of CO (PROX) over a CuOx/CeO2-coated microchannel reactor. Catalysis Today, 203, 182-187.
dc.identifier.issn 0920-5861 es
dc.identifier.uri https://hdl.handle.net/11441/70730
dc.description.abstract The catalytic performance of a CuOx/CeO2 powder catalyst and that of a microchannel reactor or microreactor (MR) coated with the same solid was determined and compared. The catalytic activity measurements were carried out with varying O2/CO molar ratios in the feed-stream. In addition, the influence of the presence of CO2 and H2O in the reaction mixture was studied. Some discrepancies were observed between the performances of the powder catalyst and the MR depending on the O2/CO ratio. The MR presented a very good performance with a superior selectivity for CO conversion. This behaviour was due to a more efficient heat removal in the case of the MR that inhibited the H2 oxidation reaction and the r-WGS. The isothermicity of the microreactor during the process was demonstrated through the monitoring of the MR inlet and outlet temperatures. Concerning the presence of CO2 or H2O in the feed-stream, both compounds gave rise to a decrease of the CO conversion. The negative effect on the catalytic performance was more marked when both compounds were fed together, although the principal inhibitor effect was associated to the CO2. This seems to be related with the formation of stable carbonates at the catalyst surface. es
dc.description.sponsorship Ministerio de Ciencia e Innovación ENE2009-14522-C05-01 es
dc.description.sponsorship Junta de Andalucía P09-TEP-5454 es
dc.format application/pdf es
dc.language.iso eng es
dc.publisher Elsevier es
dc.relation.ispartof Catalysis Today, 203, 182-187.
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 Internacional *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Microchannel reactor es
dc.subject Hydrogen purification es
dc.subject PROX es
dc.subject CO oxidation es
dc.subject Cu-modified ceria es
dc.title Influence of the O2/CO ratio and the presence of H2O and CO2 in the feed-stream during the preferential oxidation of CO (PROX) over a CuOx/CeO2-coated microchannel reactor es
dc.type info:eu-repo/semantics/article es
dc.type.version info:eu-repo/semantics/submittedVersion es
dc.rights.accessrights info:eu-repo/semantics/openAccess es
dc.contributor.affiliation Universidad de Sevilla. Departamento de Química Inorgánica es
dc.relation.projectID ENE2009-14522-C05-01 es
dc.relation.projectID P09-TEP-5454 es
dc.relation.publisherversion http://dx.doi.org/10.1016/j.cattod.2012.04.021 es
dc.identifier.doi 10.1016/j.cattod.2012.04.021 es
idus.format.extent 24 p. es
dc.journaltitle Catalysis Today es
dc.publication.volumen 203 es
dc.publication.initialPage 182 es
dc.publication.endPage 187 es
dc.contributor.funder Ministerio de Ciencia e Innovación (MICIN). España
dc.contributor.funder Junta de Andalucía
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