Noble-free potassium-bimetallic catalysts supported on beta-zeolite for the simultaneous removal of NOx and soot from simulated diesel exhaust
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Título: | Noble-free potassium-bimetallic catalysts supported on beta-zeolite for the simultaneous removal of NOx and soot from simulated diesel exhaust |
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Autor/es: | Nejar, Najlae | Illán-Gómez, María José |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medioambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Diesel | Soot | NOx | C3H6 | Bimetallic | Pt | K | Cu | Co | Beta |
Área/s de conocimiento: | Química Inorgánica | Ingeniería y Tecnología del Medioambiente |
Fecha de creación: | 2006 |
Fecha de publicación: | 15-ene-2007 |
Editor: | Elsevier |
Cita bibliográfica: | NEJAR, Najlae; ILLÁN GÓMEZ, María José. "Noble-free potassium-bimetallic catalysts supported on beta-zeolite for the simultaneous removal of NOx and soot from simulated diesel exhaust". Catalysis Today. Vol. 119, Issues 1-4 (15 Jan. 2007). ISSN 0920-5861, pp. 262-266 |
Resumen: | This paper deals with the activity of the KCu and KCo catalysts supported on beta-zeolite for the simultaneous NOx/soot removal from a simulated diesel exhaust, containing C3H6 as model hydrocarbon. In order to reveal the effect of potassium, the corresponding monometallic catalysts (Co/beta and Cu/beta) were analyzed and different potassium loadings were used. In addition, for comparative purpose, the performance of a platinum based catalyst (Pt/beta) was studied. All noble-free catalysts show, at 450 °C, a high activity for the simultaneous NOx/soot removal. Among them, K1Cu/beta presents the best global performance at 350 and 450 °C achieving a high soot consumption rate (comparable to platinum catalysts) and the highest NOx reduction. In contrast to platinum catalysts, K1Cu/beta has the advantage that the main reaction products are N2 and CO2. |
Patrocinador/es: | The authors thank the Spanish Government (MEC) (CTQ2005-01358) for the financial support. |
URI: | http://hdl.handle.net/10045/2644 |
ISSN: | 0920-5861 |
DOI: | 10.1016/j.cattod.2006.08.011 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.cattod.2006.08.011 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
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