Artículo
SO2 influence on the K/La2O3 soot combustion catalyst deactivation
Fecha de publicación:
04/2008
Editorial:
Elsevier Science
Revista:
Catalysis Today
ISSN:
0920-5861
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In the present work, K/La2O3 was prepared and tested as a potential catalyst to be used in a diesel engine exhaust. The soot combustion activity was evaluated by TPO, and the NOx - catalyst interaction was studied using a microbalance experiment. The SO2 poisoning process and the regeneration of a poisoned K/La2O3 catalyst were analyzed. The fresh catalyst presented a good soot combustion activity. After being treated with a 1000 ppm SO2 stream, the catalyst was poisoned due to lanthanum sulfate and potassium sulfate formation. The NOx treatment contributed to the K2(SO4) decomposition at the expense of extra La2(SO4)3 formation and the H2 treatment contributed to the La2(SO4)3 decomposition
Palabras clave:
Soot
,
Potassium
,
Lanthanum
,
So2
,
Deactivation
,
Regeneration
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Licencia
Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción:
Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
Colecciones
Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
Peralta, María Ariela; Ulla, Maria Alicia del H.; Querini, Carlos Alberto; SO2 influence on the K/La2O3 soot combustion catalyst deactivation; Elsevier Science; Catalysis Today; 133-135; 1-4; 4-2008; 461-466
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