Water Resistance of Torrefied Wood Pellets Prepared by Different Methods

Torrefaction used in combination with pelletization is a promising technology to upgrade solid biofuels and has been demonstrated worldwide. In comparison normal biomass pellets, which disintegrate under wet conditions, one of the advantages torrefied pellets better water resistance. An understanding differences proof properties for by different production schemes can promote their further application. communication, various were exposed indoor outdoor changes moisture content diameter examined. Two comparison: torrefaction wood chips followed (pre-torrefaction) (post-torrefaction). It was found that post-torrefied had much lower levels than pre-torrefied both tests. test no-roof condition, rate increase more double exhibited almost no change. The results on superior resistance nearly consistent those reported previous literature. Torrefied have considered industrial use, such as co-combustion gasification large scale. Taking advantage resistances, could also be personal community consumers small scale long-term storages advanced high waterproof performance, energy density, biodegradation.