CINDECA 05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
artículos
Título:
Catalytic combustion of diesel soot. Deactivation by SO2 of copper and potassium nitrate catalysts supported on alumina
Autor/es:
SANDRA MOSCONI; ILEANA D. LICK; ALFREDO CARRASCULL; MARTA I. PONZI; ESTHER N. PONZI
Revista:
CATALYSIS COMMUNICATIONS
Editorial:
Elsevier
Referencias:
Año: 2006
ISSN:
1566-7367
Resumen:
The SO2 poisoning of Cu-KNO3/Al2O3 catalysts used in the catalytic combustion of diesel soot with NO/O2 feed has been studied in this work. Fresh catalysts show temperatures of maximum combustion rate (Tmax) at about 470, 375 and 368C for Cu/Al2O3, KNO3/Al2O3 and Cu-KNO3/Al2O3 respectively. Poisoned catalysts decrease the activity and techniques of vibrational spectroscopy (FTIR) and temperature programmed reduction (TPR) suggest the KNO3 loss and the formation of potassium sulfate in the mentioned poisoned catalysts. Keywords: diesel soot, combustion, SO2.
