Effects of pyrolysis conditions on the heating rate in biomass particles and applicability of TGA kinetic parameters in particle thermal conversion modelling

► Heating rate during pyrolysis is inversely proportional to the thermal time constant and independent of the Biot number. ► If τ > 50 s, pyrolysis occurs in a low heating rate regime. ► Pyrolysis of wood dust and wood pellets always happen in high heating rate regimes. ► Pyrolysis of wood logs always occurs in low heating rate regimes. ► Wood chips pyrolysis undergo low or high heating rate regimes depending on their size.