Laboratory- to Pilot-Scale Fractionation of Lignocellulosic Biomass Using an Acetone Organosolv Process

Acetone organosolv fractionation of beech and birch wood at the lab-scale results in high sugar yields from (hemi)cellulose isolation a high-purity lignin. In this study, process is scaled up to validate technology pilot scale using industrial-size chips low liquid-to-solid ratios as next step toward commercialization. Translation pilot-scale showed similar performance compared processing with good conversion polymeric pentoses mostly monomeric sugars delignification. Continuous lignin precipitation by solvent evaporation LigniSep resulted formation nonsticky aggregates filterability. The improved advanced design traditional dilutive approaches are likely translate better economy. pulp washing efficiency recovery (nonprecipitable) aqueous hemicellulose stream still need be for an efficient design. However, product concentrations spent liquor provide excellent start position commercial scale.