Particle Properties and Feeding Characteristics of Biomass Powders

J. Falk, S.H. Larsson & M. Broström
Milling of biomass is a necessary step in the use of fuel powders and also in fuel pre-treatment. Milled biomass powders are often cohesive, have low bulk density and have poor flowability leading to costly problems in fuel handling. In this study, two different milling methods (knife mill and hammer mill) and four different biomass powders (Norway spruce, torrefied Norway spruce, charcoal and reed canary grass) were tested in order to find correlations between particle...