In this study, larch and yellow poplar were torrefied in bench scale tubular reactor at 220, 250 and 280°C with residence time 50 min. Effect of torrefaction on properties, chemical composition, grandability and microstructure and morphology of bioma...
In this study, larch and yellow poplar were torrefied in bench scale tubular reactor at 220, 250 and 280°C with residence time 50 min. Effect of torrefaction on properties, chemical composition, grandability and microstructure and morphology of biomass was observed depending on torrefaction conditions. Chemical composition of torrefied biomass changed significantly with increase of torrefaction seversity. The grindability of larch and yellow poplar were improved by torrefaction treatment. XRD analysis revealed that the degradation of amorphous hemicellulose and amorphous regions of cellulose resulted in increases of crystallinity of torrefied biomass. The color of the torrefied biomass was darker with increasing temperature.