Artículo
Effect of water vapor over Pd-Co/SZ catalyst for the NO selective reduction by methane
Fecha de publicación:
01/2005
Editorial:
Elsevier Science
Revista:
Catalysis Communications
ISSN:
1566-7367
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The selective catalytic reduction (SCR) of NO by CH4 in the presence of excess O2 has been studied on Pd-Co, Pd and Co catalysts supported on sulfated zirconia (SZ) and activated in reaction mixture at 700 °C. After the addition of Co on Pd/SZ, an promoting effect on the catalytic activity was achieved, especially on 0.2%Pd-2%Co/SZ, which showed the maximum NO conversion higher 60% at 500 °C and 31,000 h-1. The bimetallic catalyst presented practical activity in the presence of water vapor. Stable NOx conversion was obtained for over 50 h in the presence of 6% water vapor. In order to correlate the catalysts composition with their activity, they were characterized by X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS) and temperature programmed reduction (TPR) techniques.
Palabras clave:
Methane
,
No Reduction
,
Sulfated Zirconia
,
Water Tolerance
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Articulos(CINDECA)
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Articulos de CENTRO DE INV EN CS.APLICADAS "DR.JORGE J.RONCO"
Citación
Quincoces, Claudia Edith; Guerrero, S.; Araya, P.; Gónzalez, María Gloria; Effect of water vapor over Pd-Co/SZ catalyst for the NO selective reduction by methane; Elsevier Science; Catalysis Communications; 6; 1; 1-2005; 75-80
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