The study analyzed the physical and chemical properties of dry-torrefied (DT) wet-torrefied (WT) biomass. Hemicellulose was mainly degraded by torrefaction, contents glucan lignin were relatively increased. degradation rate biomass higher in WT (18.25%–23.13%) than DT (3.12%–3.83%), it increased with increasing reaction time. Torrefaction improved crystallinity from 36.88% raw material to a max...