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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Title: Noble-free potassium-bimetallic catalysts supported on beta-zeolite for the simultaneous removal of NOx and soot from simulated diesel exhaust
Authors: Nejar, Najlae | Illán-Gómez, María José
Research Group/s: Materiales Carbonosos y Medioambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica
Keywords: Diesel | Soot | NOx | C3H6 | Bimetallic | Pt | K | Cu | Co | Beta
Knowledge Area: Química Inorgánica | Ingeniería y Tecnología del Medioambiente
Date Created: 2006
Issue Date: 15-Jan-2007
Publisher: Elsevier
Citation: 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
Abstract: 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.
Sponsor: 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
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.cattod.2006.08.011
Appears in Collections:INV - MCMA - Artículos de Revistas

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