Remoción de formaldehido, de efluentes acuosos mediante oxidación húmeda catalítica

This work deals with the oxidation of formaldehyde using catalysts based on Ce, which are described in the literature as active metals in the oxidation of refractory and more resistant compounds to be leached by the dissolution of the active species. Two types of material preparation are presented,...

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Bibliographic Details
Published in:Avances en ciencias e ingeniería Vol. 2; no. 4; pp. 13 - 23
Main Authors: Cuevas, Saúl Ángel, Mugica Álvarez, Violeta, Aguilar Pliego, Julia, Gutiérrez Arzaluz, Mirella, Torres Rodríguez, Miguel, Noreña Franco, Luis E
Format: Journal Article
Language:Spanish
Published: Executive Business School 2011
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Summary:This work deals with the oxidation of formaldehyde using catalysts based on Ce, which are described in the literature as active metals in the oxidation of refractory and more resistant compounds to be leached by the dissolution of the active species. Two types of material preparation are presented, on the one hand, pure Ce or Co oxides and on the other hand, mixed oxides of Ce-Co to different molar relationships are prepared, presenting all catalysts for Ce (pure and mixed), the diffraction pattern corresponding to cerium oxide (cerianite). The activity of these materials in the elimination of HCOOH, is studied in a conventional reactor type "slurry" by reaction of catalytic wet oxidation (CWO). Both Ce's presence, and the major content of this one in the catalyst, notably favors the removal of the pollutant. Este trabajo aborda la oxidación del formaldehído utilizando catalizadores basados en Ce, que son descritos en la literatura como metales activos en la oxidación de compuestos refractarios y más resistentes a ser lixiviados por la disolución de las especies activas. Se presenta por una parte, la preparación de óxidos puros de Ce o Co y por otra parte, de óxidos mixtos de Ce-Co, a diferentes relaciones molares, presentando todos los catalizadores de Ce (puro y mixtos), el patrón de difracción correspondiente al óxido de cerio (cerianita). La actividad de estos materiales en la eliminación de HCOOH, se estudia en un reactor convencional tipo slurry , mediante la reacción de oxidación húmeda catalítica (CWO). Tanto la presencia de Ce, como el mayor contenido de éste en el catalizador, favorecen notablemente la remoción del contaminante.
ISSN:0718-8706
0718-8706