%0 Journal Article %J Energy & Fuels %D 2005 %T Kinetics of the complete combustion of dilute propane and toluene over iron-doped ZrO2 catalyst %A Choudhary, Vasant R. %A Deshmukh, G. M. %A Mishra, D. P. %X

The kinetics of the complete combustion of propane and toluene at very low concentrations in air (0.45 and 0.3 mol % in air, respectively) over iron-doped ZrO2 (cubic) catalyst (Fe/Zr = 0.25) at different temperatures (598-723 K) in kinetic control regime have been investigated. The combustion rate data could be fitted very well to both the power-law and redox (Mars-Van Krevelen) models. However, the redox model provided a better fit to the kinetic data for the propane combustion. It also showed a better fit to the toluene combustion data at the lower temperatures (623 K). The reaction order (with respect to the hydrocarbon), apparent activation energy, and frequency factor (from the power-law model) for the propane combustion were 0.96 (average), 21.16 kcal/mol, and 4.67 x 10(5) Mol g(-1) h(-1) kPa(-n), respectively, and those for the toluene combustion were 0.77 (average), 26.08 kcal/mol, and 1.48 x 10(7) mol g(-1) h(-1) kPa(-n), respectively.

%B Energy & Fuels %I AMER CHEMICAL SOC %C 1155 16TH ST, NW, WASHINGTON, DC 20036 USA %V 19 %P 54-63 %8 JAN %G eng %N 1 %9 Article %3

Foreign

%4 2.835 %R 10.1021/ef0498871