ACTIVITY OF ALUMINA SUPPORTED Fe CATALYSTS FOR N2O DECOMPOSITION: EFFECTS OF THE IRON CONTENT AND THERMAL TREATMENT

Alvarez, Pablo; Araya, Paulo; Rojas, Rene; Guerrero, Sichem; Aguila, Gonzalo

dc.creator	Alvarez, Pablo
dc.creator	Araya, Paulo
dc.creator	Rojas, Rene
dc.creator	Guerrero, Sichem
dc.creator	Aguila, Gonzalo
dc.date	2018-02-09
dc.date.accessioned	2019-11-13T15:11:38Z
dc.date.available	2019-11-13T15:11:38Z
dc.identifier	http://www.jcchems.com/index.php/JCCHEMS/article/view/473
dc.identifier.uri	https://revistaschilenas.uchile.cl/handle/2250/112648
dc.description	The activity of Fe2O3/Al2O3 catalysts prepared by impregnation of Al2O3 with different amounts of Fe and calcination temperatures (650 and 900 ºC) 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 ºC, which is accompanied by a decrease in the specific area. The activity of the catalysts and the specific 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.	en-US
dc.format	application/pdf
dc.language	eng
dc.publisher	Sociedad Chilena de Química	en-US
dc.relation	http://www.jcchems.com/index.php/JCCHEMS/article/view/473/202
dc.rights	Copyright (c) 2018 Journal of the Chilean Chemical Society	en-US
dc.rights	https://creativecommons.org/licenses/by-nc-sa/4.0	en-US
dc.source	Journal of the Chilean Chemical Society; Vol 62 No 4 (2017): Journal of the Chilean Chemical Society	en-US
dc.source	0717-9707
dc.source	0717-9324
dc.subject	iron	en-US
dc.subject	alumina	en-US
dc.subject	impregnation method	en-US
dc.subject	N2O decomposition	en-US
dc.title	ACTIVITY OF ALUMINA SUPPORTED Fe CATALYSTS FOR N2O DECOMPOSITION: EFFECTS OF THE IRON CONTENT AND THERMAL TREATMENT	en-US
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion

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