Pyrolysis of wood macrocylinders under pressure: Application of a simple mathematical model

Abstract

The pyrolysis of wood macrocylinders is studied using a pressurized thermobalance. The experiments carried out on the influence of temperature, pressure and gas velocity show that the pyrolysis appears to be dependent on the temperature, and to a lesser extent on the pressure, which would have an effect on the external heat transfer. An increase in pressure leads to a low augmentation of the decomposition rate and of the yield in charcoal. In the proposed mathematical model, the emission of volatile products is taken into account through the external convective heat transfer.