Comminution Phenomena of Wood Pellets and Chips Under Combustion and Gasification Conditions

P. Ammendola, R. Chirone, G. Ruoppolo & F. Scala
This work reports on a study, carried out in a lab­scale fluidized bed apparatus, on fragmentation and attrition of two biomass fuels, namely wood chips and wood pellets, under combustion and gasification conditions. The aim was to highlight the effect of their different mechanical strength on the fuel particle size distribution and overall carbon conversion. Primary fragmentation tests showed that for wood pellets limited fragmentation occurred during devolatilization, with a fragmentation probability around 30% and...