Activity of alumina supported fe catalysts for N2O decomposition: Effects of the iron content and thermal treatment

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dc.contributor.authorAlvarez, Pablo
dc.contributor.authorAraya, Paulo
dc.contributor.authorRojas, Rene
dc.contributor.authorGuerrero, Sichem
dc.contributor.authorAguila, Gonzalo
dc.date.accessioned2024-09-04T15:44:46Z
dc.date.available2024-09-04T15:44:46Z
dc.date.issued2017
dc.descriptionIndexación: Scopus
dc.description.abstractThe activity of Fe2O3/Al2O3 catalysts prepared by impregnation of Al2O3 with different amounts of Fe and calcination temperatures (650 and 900 °C) in the direct N2O decomposition reaction was studied. High calcination temperature was introduced to study the effect of "aging", which are the conditions prevailing in the process-gas option for N2O abatement. The catalysts were characterized by BET, XRD, UV-DRS, and H2-TPR. The incorporation of Fe promotes the alumina phase transition (g-Al2O3 to a-Al2O3) when the catalysts are calcined at 900 °C, which is accompanied by a decrease in the specifc area. The activity of the catalysts and the specifc surface area depend on Fe loading and calcination temperature. It was found that highly dispersed Fe species are more active than bulk type Fe2O3 particles. We conclude that Fe2O3/Al2O3 catalysts prepared by impregnation method are active in the decomposition of N2O, to be used at low or high reaction temperatures (tail-gas or process-gas treatments, respectively), as part of nitric acid production plant. © 2018 Sociedad Chilena de Quimica. All rights reserved.
dc.identifier.citationJournal of the Chilean Chemical Society Volume 62, Issue 4, Pages 3752 - 37592017
dc.identifier.issn0717-9324
dc.identifier.urihttps://repositorio.unab.cl/handle/ria/59791
dc.language.isoen
dc.publisherSociedad Chilena de Quimica
dc.rights.licenseAtribución/Reconocimiento 4.0 Internacional CC BY 4.0 Deed
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectAlumina
dc.subjectImpregnation method
dc.subjectIron
dc.subjectN2O decomposition
dc.titleActivity of alumina supported fe catalysts for N2O decomposition: Effects of the iron content and thermal treatment
dc.typeArtículo
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