id	keyword
brj-22752	pellets
brj-22752	et al
brj-22752	torrefaction
brj-22752	wood
brj-22752	energy
brj-22752	temperature
brj-22752	combustion
brj-22752	biomass
brj-22752	wood pellets
brj-22752	article
brj-22752	emissions
brj-22752	doi