Increases of 21%, 41% and 67% in moisture content of the feeding biomass material – with respect to the lower value of the
operating range, i.e. 20 wt% w.b. – were observed to yield the following percentage increments in a series of physical
properties of pellets, respectively: 14%, 25% and 50% in bulk density; 6%, 16% and 18% in particle density; 225%,
1737% and 3575% in hardness; 8%, 44% and 88% in durability