Modelling of sintering kinetics of naphtha-reforming Pt/Al2O3-Cl catalysts

Abstract

The sintering kinetics of a conventional naphtha-reforming supported metal catalyst have been studied. Kinetic data were analysed using a general power-law equation. A quantitative relationship between the operational variables (T, p_o2) and the kinetic parameters was established. Sintering can be satisfactorily described as a first-order process. The observed activation energy was 132.6 kJ mol^–1, within the range of activation energies for processes occurring at an atomic level. As p_o2 was increased, the sintering deactivation decreased, while the initial sintering temperature values increased.