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1. WO2020152105 - METHOD FOR TREATING A LIGNOCELLULOSIC BIOMASS

Publication Number WO/2020/152105
Publication Date 30.07.2020
International Application No. PCT/EP2020/051289
International Filing Date 20.01.2020
IPC
C12P 7/10 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
02containing a hydroxy group
04acyclic
06Ethanol, i.e. non-beverage
08produced as by-product or from waste or cellulosic material substrate
10substrate containing cellulosic material
C12P 7/16 2006.01
CCHEMISTRY; METALLURGY
12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
7Preparation of oxygen-containing organic compounds
02containing a hydroxy group
04acyclic
16Butanols
Applicants
  • IFP ENERGIES NOUVELLES [FR]/[FR]
  • INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE
Inventors
  • AYMARD, Caroline
  • LOUESDON, Severine
  • ROUSSET, Romain
  • HUDEBINE, Damien
Common Representative
  • IFP ENERGIES NOUVELLES
Priority Data
190059724.01.2019FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) METHOD FOR TREATING A LIGNOCELLULOSIC BIOMASS
(FR) PROCEDE DE TRAITEMENT D'UNE BIOMASSE LIGNOCELLULOSIQUE
Abstract
(EN)
The aim of the invention is a method for treating lignocellulosic biomass comprising the following steps: a) conditioning the lignocellulosic biomass; b) washing said particles; c) separating the aqueous solution from the washed biomass particles; d) impregnating said lignocellulosic substrate with an acid liquor; e) undertaking solid/liquid separation of the impregnated lignocellulosic substrate; f) pretreating said substrate originating from step e) by cooking; g) completing an enzymatic hydrolysis of the pretreated lignocellulosic substrate; h) fermenting the hydrolysat originating from step g); and - introducing the used aqueous washing solution into a step of said method for treating the biomass following the pretreating step f), and/or into a step of producing enzymes, and/or into a step of producing/propagating microorganisms that are needed in steps g) or h).
(FR)
L'invention a pour objet un procédé de traitement de biomasse lignocellulosique comprenant les étapes suivantes : a) on conditionne la biomasse lignocellulosique b) on lave lesdites particules; c) on sépare la solution aqueuse des particules de biomasse lavées d) on imprègne ledit substrat lignocellulosique avec une liqueur acide, e) on réalise une séparation solide/liquide du substrat lignocellulosique imprégné f) on prétraite ledit substrat issu de l'étape e) par cuisson, g) on effectue une hydrolyse enzymatique du substrat lignocellulosique prétraité h) on effectue une fermentation :de l'hydrolysat issu de l'étape g) - et on introduit la solution aqueuse de lavage usée dans une étape dudit procédé de traitement de la biomasse qui est postérieure à l'étape f) de prétraitement, et/ou dans une étape de production d'enzymes et/ou dans une étape de production/propagation des microorganismes nécessaires aux étapes g) ou h).
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