The mechanical energy consumption associated with compression of
torrefied sawdust into pellets is expected to be reduced, but the pellet
density, durability and volumetric energy density may become lower
than those made from the torrefaction–densification approach. So far,
there has been limited information and no systematic research reported
in the literature on the performance of torrefied pellets prepared following
the densification–torrefaction pathway. In view of the lowweight loss
of 20–30% in torrefaction process, compared to more than 60% weight
loss in the carbonization process for biochar production, it is important
to investigatewhether a high quality of torrefiedwood pellets can be produced
from the thermal treatment of regular wood pellets