PERSONAL DE APOYO
MOSCONI Sandra Mariela
artículos
Título:
Catalytic combustion of diesel soot: Desactivation by SO2 of copper and potassium nitrate catalysts supported on alumina
Autor/es:
SANDRA M. MOSCONI, ILEANA D. LICK, ALFREDO CARRASCULL, MARTA I. PONZI, ESTHER N. PONZI
Revista:
CATALYSIS COMMUNICATIONS
Referencias:
Año: 2007 vol. 8 p. 1755 - 1758
ISSN:
1566-7367
Resumen:
Abstract
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 368 C 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.2 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 368 C 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.Tmax) at about 470, 375 and 368 C 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.2O3 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.3 loss and the formation of potassium sulfate in the mentioned poisoned
catalysts.
2007 Elsevier B.V. All rights reserved.2007 Elsevier B.V. All rights reserved.
Keywords: Diesel soot; Combustion; SO2Diesel soot; Combustion; SO2