抄録
Carbonization process is a good practical utilization of biomass, which can transform various lignocellulosic wastes into charcoal. To improve the current charcoal production, which is time-consuming and inefficient, high pressure carbonization has been introduced as quick and efficient technologies. This study focused on the mechanism and applicability of this technique on agricultural wastes including wood residues. It was confirmed that the carbonization reaction was enhanced at elevated pressures, 0.4-0.8 MPa in our study: the reaction time was significantly shorter than in the conventional processes at ambient pressure. Not only pressure but also air delivery considerably affected the reaction performance. High airflow promoted reaction propagation but unfavorably decreased charcoal yields. The manipulation of air delivery and pressure could improve carbonization process and offer higher charcoal yields.
