公开(公告)号：US12152110B2

公开(公告)日：2024-11-26

申请号：US16956143

申请日：2018-12-04

Applicant: IFP Energies Nouvelles ,  Institut National de Recherche Pour L'Agriculture, L'Alimentation et L'Environment ,  Agro Industries Recherche Et Developpement

Inventor： Caroline Aymard ,  Pierre-Antoine Bouillon ,  Meriem Bouras

IPC: C08H8/00 ,  B01J8/00 ,  B01J8/08 ,  B01J8/10 ,  D21C1/02 ,  D21C1/10 ,  D21C3/22 ,  D21C7/06

Abstract: The invention relates to a process for treating a lignocellulosic biomass comprising a solids content of not more than 80% by weight, said process comprising the use of at least one reactor (9,14) for treating said biomass, in which the or at least one of said reactors is fed with biomass via a feed means (6,11) creating a pressure increase between the biomass inlet and the biomass outlet of said feed means, in which said feed means is washed by circulation of a washing fluid between a washing inlet (7,12) and a washing outlet (8,13). According to the process, at least a portion of the washing fluid (8,13) exiting the fluid outlet of the at least one feed means (6,11) is reintroduced into the washing inlet of the same feed means or of another of said feed means.

公开(公告)号：US09605282B2

公开(公告)日：2017-03-28

申请号：US14772911

申请日：2014-02-06

Applicant: IFP ENERGIES NOUVELLES

Inventor： Caroline Aymard ,  Pierre-Antoine Bouillon ,  Stephanie Fleurier ,  Sylvain Louret ,  Larissa Perotta ,  Eszter Toth

IPC: C12P7/14 ,  C12P7/10

CPC classification number: C12P7/14 ,  C12P7/10 ,  C12P2201/00 ,  C12P2203/00 ,  Y02E50/16

Abstract: The process for the production of alcohol and/or solvent from a biomass feedstock comprises the stages for pretreatment (P) of the biomass feedstock, for enzymatic hydrolysis (H1 and HF), and for fermenting the hydrolyzate (HF). To prevent solids from being sent and to facilitate operating the section for purifying the fermentation products, at least a portion of the solid material in the fermentation wine is extracted (Ex1) to obtain a stream of solid residue (11) comprising lignin and a fermentation wine (12) that is low in solid material. Then, the stream of solid residue is washed (L) with a liquid stream to recover a liquid stream that is enriched with fermentation products (16). The liquid stream that is enriched with fermentation products (16) is recycled in the enzymatic hydrolysis stage (H1) to recover any fermentation product and to increase the overall yield of the process.

公开(公告)号：US11299758B2

公开(公告)日：2022-04-12

申请号：US16956404

申请日：2018-12-04

Applicant: IFP Energies nouvelles ,  AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT ,  INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONNEMENT

Inventor： Caroline Aymard ,  Pierre-Antoine Bouillon ,  Romain Rousset ,  Olivier Carnnot

IPC: C12P7/10 ,  C08H8/00 ,  C12P19/00 ,  C12P19/02

Abstract: The invention relates to a process for treating lignocellulosic biomass by means of an acidic liquor in order to produce “second-generation” (2G) sugary liquors. These sugary liquors may be used to produce other products via a biochemical pathway (e.g. alcohols such as ethanol, butanol or other molecules, for example solvents such as acetone, etc.). This process comprises analysis of the liquid streams withdrawn during the process and adjustment of the composition of the impregnation liquor so as to keep the acidic power of said streams constant.