Methanol-Promoted Oxidation of Nitrogen Oxide (NOx) by Encapsulated Ionic Liquids

Santiago, Rubén, Mossin, Susanne, Bedia, Jorge, Fehrmann, Rasmus y Palomar, José . (2019) Methanol-Promoted Oxidation of Nitrogen Oxide (NOx) by Encapsulated Ionic Liquids. Environmental Science & Technology, 2019, 53, 11969−11978

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Título Methanol-Promoted Oxidation of Nitrogen Oxide (NOx) by Encapsulated Ionic Liquids
Autor(es) Santiago, Rubén
Mossin, Susanne
Bedia, Jorge
Fehrmann, Rasmus
Palomar, José
Materia(s) Ingeniería Industrial
Abstract The removal of nitrogen oxides (NOx) has been extensively studied due to their harmful effects to health and environment. In this work, encapsulated ionic liquids (ENILs) are used as catalysts for the NO oxidation at humid conditions and low temperatures. Hollow carbon capsules (CCap) were first synthesized to contain different amounts of 1-butyl-3-methylimidazolium nitrate IL ([bmim][NO3]), responsible for the catalytic oxidation. Then, the materials were characterized using different techniques, by analyzing microstructure, porosity, elemental composition, and thermal stability. The catalytic performance of ENIL materials was tested for NO conversion at different conditions. Thus, NO concentration was fixed at 2000 ppm at dry and humid conditions. Then, the methanol promotion of the reaction was demonstrated, increasing the NO conversion values in all cases, and the alcohol/water ratio was optimized. The temperature effect was studied as well, using the optimal conditions based on the previous measurements. The results reflect that humid conditions do not have a negative effect in terms of NO conversion when using ENILs, opposite behavior as observed for CCap and traditional catalysts studied before. The low amount of IL inside the material (40% in mass) was found to be the optimum for the task, reaching conversions of almost 45%.
Editor(es) ACS
Fecha 2019-09-13
Formato application/pdf
Identificador bibliuned:DptoIEEC-ETSI-Articulos-Rsantiago-0004
http://e-spacio.uned.es/fez/view/bibliuned:DptoIEEC-ETSI-Articulos-Rsantiago-0004
DOI - identifier 10.1021/acs.est.9b03103
ISSN - identifier 1520-5851
Nombre de la revista Educational Technology and Society
Número de Volumen 2009
Número de Issue 53
Página inicial 11969
Página final 11978
Publicado en la Revista Environmental Science & Technology, 2019, 53, 11969−11978
Versión de la publicación acceptedVersion
Tipo de recurso Article
Derechos de acceso y licencia http://creativecommons.org/licenses/by-nc-nd/4.0
Tipo de acceso Acceso abierto
Notas adicionales The registered version of this article, first published in Educational Technology and Society, is available online at the publisher's website: ACS Publications, https://doi.org/10.1021/acs.est.9b03103.
Notas adicionales La versión registrada de este artículo, publicado por primera vez en Educational Technology and Society, está disponible en línea en el sitio web del editor: ACS Publications, https://doi.org/10.1021/acs.est.9b03103.

 
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Creado: Tue, 16 Jan 2024, 01:00:00 CET