This study was conducted to investigate the effect of binders on the durability of wood pellets. Rapeseed
flour (RF), coffee meal (CM), bark (BK), pine cones (PC), and lignin powder (LP) were used as binders in
the fabrication of larch (LAR) and tulip tree (TUT) pellets. The tumbling-can method was used to measure
the durability of the pellets. The addition of RF, CM, and LP to LAR and TUT particles produced pellets
with good durability, and mixing CM or LP led to an improved higher heating value (HHV) of the pellets
due to their high lignin and fat/oil contents. Durabilities of the LAR and TUT pellets increased as RF and
CM contents were increased, and the addition of LP showed the most noticeable effect on increasing the
durability. On the other hand, the use of BK and PC had a detrimental effect on the durability of LAR
pellets. Based on the results, blending LP, CM, or RF as a binder might help to produce durable LAR and
TUT pellets with an increased HHV. In addition, the selection of an optimal feed moisture content for the
pellets fabricated with the binders might help in the optimization of the durability.