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dc.contributor.authorIzquierdo Ereño, Urko
dc.contributor.authorGarcía García, Iker
dc.contributor.authorGutierrez, Ángel María
dc.contributor.authorArraibi Dañobeitia, Juan Ramón
dc.contributor.authorBarrio Cagigal, Victoria Laura
dc.contributor.authorCambra Ibáñez, José Francisco
dc.contributor.authorArias Ergueta, Pedro Luis
dc.date.accessioned2018-06-25T09:58:51Z
dc.date.available2018-06-25T09:58:51Z
dc.date.issued2018-01-09
dc.identifier.citationCatalysts 8 : (2018) // Article ID 12es_ES
dc.identifier.issn2073-4344
dc.identifier.urihttp://hdl.handle.net/10810/27705
dc.description.abstractThis work studies Ni-based catalyst deactivation and regeneration processes in the presence of H2S under a biogas tri-reforming process for hydrogen production, which is an energy vector of great interest. 25 ppm of hydrogen sulfide were continuously added to the system in order to provoke an observable catalyst deactivation, and once fully deactivated two different regeneration processes were studied: a self-regeneration and a regeneration by low temperature oxidation. For that purpose, several Ni-based catalysts and a bimetallic Rh-Ni catalyst supported on alumina modified with CeO2 and ZrO2 were used as well as a commercial Katalco 57-5 for comparison purposes. Ni/Ce-Al2O3 and Ni/Ce-Zr-Al2O3 catalysts almost recovered their initial activity. For these catalysts, after the regeneration under oxidative conditions at low temperature, the CO2 conversions achieved79.5% and 86.9%, respectivelywere significantly higher than the ones obtained before sulfur poisoning66.7% and 45.2%, respectively. This effect could be attributed to the support modification with CeO2 and the higher selectivity achieved for the Reverse Water-Gas-Shift (rWGS) reaction after catalysts deactivation. As expected, the bimetallic Rh-Ni/Ce-Al2O3 catalyst showed higher resistance to deactivation and its sulfur poisoning seems to be reversible. In the case of the commercial and Ni/Zr-Al2O3 catalysts, they did not recover their activity.es_ES
dc.description.sponsorshipThis research was supported by the University of the Basque Country (UPV/EHU), the Central Analysis Service (SGIker) of the UPV/EHU, the Spanish Ministry of Economy and Competitiveness (ENE2014-53566-P), the European Union through the European Regional Development Fund (FEDER) and Naturgas Company (EDP group).es_ES
dc.language.isoenges_ES
dc.publisherMDPI AGes_ES
dc.relationInfo:eu-repo/grantAgreement/MINECO/ENE2014-53566-Pes_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subjecthydrogenes_ES
dc.subjectreforminges_ES
dc.subjectdeactivationes_ES
dc.subjectregenerationes_ES
dc.subjectbiogases_ES
dc.subjectrenewable energyes_ES
dc.subjectsynthesis gases_ES
dc.subjectcarbon-dioxidees_ES
dc.subjectmodel biogases_ES
dc.subjectsteames_ES
dc.subjectmethanees_ES
dc.subjectfueles_ES
dc.subjectH2Ses_ES
dc.subjectNIes_ES
dc.subjectreactorses_ES
dc.titleCatalyst Deactivation And Regeneration Processes In Biogas Tri-Reforming Process. The Effect Of Hydrogen Sulfide Additiones_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).es_ES
dc.rights.holderAtribución 3.0 España*
dc.relation.publisherversionhttp://www.mdpi.com/2073-4344/8/1/12es_ES
dc.identifier.doi10.3390/catal8010012
dc.departamentoesExpresión grafica y proyectos de ingenieríaes_ES
dc.departamentoesIngeniería nuclear y mecánica de fluidoses_ES
dc.departamentoesIngeniería química y del medio ambientees_ES
dc.departamentoeuAdierazpen grafikoa eta ingeniaritzako proiektuakes_ES
dc.departamentoeuIngeniaritza kimikoa eta ingurumenaren ingeniaritzaes_ES
dc.departamentoeuIngeniaritza nuklearra eta jariakinen mekanikaes_ES


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© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access
article distributed under the terms and conditions of the Creative Commons Attribution
(CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).