granulat

OBS: La matière végétale est [...] broyée, séchée, comprimée, jusqu'à 200 kg de pression et soumise à une température de 170°.

CONT: Densified Pellet Technology. Pellets are dried ground wood or other biomass waste compressed into small cylinders about 6 mm (1/4 in.) in diameter and 25 mm (1 in.) long. The pressure and heat created during their production binds the pellets together without the need for additives. Pellet-burning appliances include a hopper to hold at least 20 kg of fuel and a screw auger to move the pellets from the hopper into the combustion chamber. Pellets usually burn cleanly because they are fed to the combustion chamber at a controlled rate and are matched with the right amount of combustion air. These appliances are generally able to operate at lower emission levels than natural firewood appliances.