Patent ID: 8268126

Claim:
A method for complete dissolution of lignocellulosic biomass, comprising: (a) placing the lignocellulosic biomass in an aqueous alkaline solution (1.9-10 wt %) and keeping biomass/liquid volume ratio at about (0.003-1.05)/1, as sample A; (b) heating pure water to 329-367° C., as sample B; (c) mixing sample A with B from steps (a) and (b) in a reactor and keeping the biomass concentration at 0.1-35.1%, adjusting the mixture's pH at above 11.4, keeping the pressure at 14-106 MPa (or water density at 322-787 kg/m 3 ), and heating the mixture to 329-367° C. at a heating rate of 7-16° C./s.