Carbonization Behavior of Hydrothermally Treated Woody Biomass

Abstract

Influence of the hydrothermal pre-treatments on the carbonization behaviors for bark and sap wood portions of sawtooth oak wood was investigated. The shrinkage in the course of carbonization for the bark portions was promoted markedly by applying the hydrothermal pre-treatments. To the contrary as for the sap wood portions the shrinkage was suppressed. The wide-angle X-ray diffraction measurements revealed that the hydrothermal treatments also affected the formation of the carbon layer stacking. The hydrothermal pre-treatments seem to have some potential to control the shrinkage and the formation of carbon crystallites in the production of charcoal from woody biomass.