“…In fact, although the process is generally considered endothermic, the calculation of heats of pyrolysis introduces uncertainties from the system designs and the sets of reactions used. The range of heat of reaction found for the solids studied is from 100 to 500 kJ/kg [13,28,30,35], which is low enough to consider the chemical reaction thermoneutral since the principal requirement of energy during pyrolysis consists of the sensible enthalpy change of particle [13,36]. Accordingly, Eqs.…”