Various implementations include a biomass dehydration system including a wet biomass chamber containing wet biomass, a belt or chain defining one or more cavities, two or more pulleys including a drive pulley that the belt or chain extend around and that are configured such that the cavities are disposable within the wet biomass chamber as the belt or chain moves along the pulleys to cause wet biomass to enter the cavities, and a drying chamber for dehydrating wet biomass disposed in the cavities into solid pellets. The drive pulley engages the belt or chain and causes the belt or chain to move around the pulleys. At least a portion of the belt or chain extends from the wet biomass chamber through the drying chamber. One of the pulleys includes one or more ejection protrusions for engaging the cavities and ejecting solid pellets from the cavities.

A dryer (2) for drying paper tubes (4) conveyed in a multilayer stream (W) transversely to the axis of the paper tubes (4), comprising an inlet (6) adapted to passing through it of a conveyor (3) of the multilayer stream (W), an outlet (7) adapted to passing through it of the conveyor (3) of the multilayer stream (W), at least one drying chamber (5) situated between the inlet (6) and the outlet (7), adapted to receive the conveyor (3) of the multilayer stream (W), at least one heater (8) to heat the air, at least one fan (9) to blow the heated air into the drying chamber (5). At least one wall (13, 14) of the dryer (2) is provided with at least one blowing element (15) for the heated air, and the blowing direction (R) of the heated air through the blowing element (15) is situated substantially transversely to the longitudinal axis (k) of the drying chamber (5) of the dryer (2).

Various implementations include a biomass dehydration system including a wet biomass chamber containing wet biomass, a belt or chain defining one or more cavities, two or more pulleys including a drive pulley that the belt or chain extend around and that are configured such that the cavities are disposable within the wet biomass chamber as the belt or chain moves along the pulleys to cause wet biomass to enter the cavities, and a drying chamber for dehydrating wet biomass disposed in the cavities into solid pellets. The drive pulley engages the belt or chain and causes the belt or chain to move around the pulleys. At least a portion of the belt or chain extends from the wet biomass chamber through the drying chamber. One of the pulleys includes one or more ejection protrusions for engaging the cavities and ejecting solid pellets from the cavities.