Soot Combustion. Co and K catalysts supported on different supports

ALFREDO CARRASCULL; CLAUDIA GRZONA; ILEANA D. LICK; MARTA I. PONZI; ESTHER N. PONZI

REACTION KINETICS AND CATALYSIS LETTERS

Kluwer Academic Publishers, Dordrecht

Lugar: Budapest; Año: 2002 vol. 75 p. 63 - 68

0133-1736

The catalytic combustion of particulate material was studied on cobalt catalysts promoted with potassium using different supports of its preparation. Silica, aluminium oxides and hydroxides, zirconuium oxide and hydroxide were used as supports. The catalytic activity for combustion depends on the type of support used, the higher activity corresponding to the supported catalyst on zirconium oxide. TPR studies indicate that the interaction metal/support allows to explain the higher activity of the CoK/SiO2 catalyst with respect to the CoK/Al2O3 but the high activity found in CoK/ZrO2 is not explained by this interaction. In all cases the Co and K improved the performance of catalysts.