METHOD FOR PRODUCING SUGARS AND, OPTIONALLY, ALCOHOLS AND/OR SOLVENTS FROM LIGNOCELLULOSIC BIOMASS WITH NEUTRALISATION OF THE PRE-TREATED POMACE WITH A HIGH LEVEL OF DRY MATERIAL

摘要

The invention relates to a method for producing sugars and, optionally, alcohols and/or solvents from a biomass feedstock, said method comprising the following steps: a) a step of pre-treatment P is carried out by bringing the biomass feedstock C into contact with water W and a base or acid compound A and heating same, in such a way as to obtain a pre-treated substrate 4, b) a liquid flow (13) is extracted Exl from the pre-treated substrate, c) at least part of the liquid flow (13) obtained in step b) is mixed with a pH neutralisation agent B in such a way as to obtain a liquid flow (15) comprising the pH neutralisation agent, and d) the liquid flow (15) comprising the pH neutralisation agent is mixed with the pre-treated substrate (12) in such a way as to obtain a substrate (6) comprising sugars.