| abstract |
process for fractioning lignocellulosic biomass; cerebrospinal fluid, pulp or enzyme hydrolyzate; and use of a treatment liquid for the fractionation of lignocellulosic biomass. the present invention is directed to a process to fractionate lignocellulosic biomass for the purpose of reducing process costs, increasing delignification, reducing side reactions, in particular reducing the degradation of hemicelluloses, improving cellulose hydrolysis and increasing cellulose activity lignin obtained by carrying out the biomass fractionation organosolve with a treatment liquid at a temperature below 170 ° C, in which the treatment liquid comprises a non-hydroxyl organic solvent, in particular a ketone, water and some acid, and optionally subjecting the product stream enriched with cellulose to enzymatic hydrolysis. |