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Título

Cesium as alkali promoter in Me-Cs (Me = Cu, Co, Fe)/ Al2O3 structured catalysts for the simultaneous removal of soot and NOx

Autor Ascaso Malo, Sonia; Gálvez Parruca, María Elena; Moliner Álvarez, Rafael; Lázaro Elorri, María Jesús
Palabras clave Exhaust gas cleaning
NOx selective reduction
Soot oxidation
Cesium
Washcoating
Structured catalysts
Fecha de publicación jul-2013
EditorScientific Research Publishing
Citación Modern Research in Catalysis 2: 57-62 (2013)
ResumenStructured catalysts for the simultaneous removal of soot and nitrogen oxides were prepared by means of coating cordi- erite monoliths with alumina-based suspensions containing Cu, Co or Fe and Cs as the catalytically active phase. Tex- tural and chemical properties of the coated monoliths were determined by means of N2-physisorption, SEM and tem- perature programmed reduction. Their activity in the simultaneous removal of soot and NOx was assayed in a lab-scale installation, using a carbon black as diesel surrogate. Catalysts containing Cs exhibited significant activity in deNOx, however soot oxidation activity is poorly enhanced probably due to the low NO2 evolution, pointing to a different NOx adsorption mechanism in the present case, in comparison to previous observations on analogous K and Ba containing catalysts.
Descripción 7 páginas,2 figuras, 2 tablas
Versión del editorhttp://dx.doi.org/10.4236/mrc.2013.23009
URI http://hdl.handle.net/10261/94289
DOI10.4236/mrc.2013.23009
ISSN2168-4480
E-ISSN2168-4499
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