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1. (WO2016062919) METHOD OF PROCESSING AND FRACTIONATING BIOMASS AND USE OF FRACTIONS THUS OBTAINED
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2016/062919 International Application No.: PCT/FI2015/050707
Publication Date: 28.04.2016 International Filing Date: 19.10.2015
IPC:
D21C 3/02 (2006.01) ,C08H 7/00 (2011.01) ,C08B 37/14 (2006.01) ,C08B 1/08 (2006.01) ,D21C 1/00 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3
Pulping cellulose-containing materials
02
with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
H
DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
7
Lignin; Modified lignin; High-molecular-weight products derived therefrom
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
37
Preparation of polysaccharides not provided for in groups C08B1/-C08B35/110; Derivatives thereof
14
Hemicellulose; Derivatives thereof
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
B
POLYSACCHARIDES; DERIVATIVES THEREOF
1
Preparatory treatment of cellulose for making derivatives thereof
08
Alkali cellulose
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
1
Pretreatment of the finely-divided materials before digesting
Applicants:
TEKNOLOGIAN TUTKIMUSKESKUS VTT OY [FI/FI]; Vuorimiehentie 3 FI-02150 Espoo, FI
Inventors:
VARHIMO, Antero; FI
SIIKA-AHO, Matti; FI
SIRVIÖ, Jari; FI
LIUKKONEN, Sari; FI
MÄÄTTÄNEN, Marjo; FI
Agent:
SEPPO LAINE OY; Itämerenkatu 3 B FI-00180 Helsinki, FI
Priority Data:
2014593524.10.2014FI
Title (EN) METHOD OF PROCESSING AND FRACTIONATING BIOMASS AND USE OF FRACTIONS THUS OBTAINED
(FR) PROCÉDÉ DE TRAITEMENT ET DE FRACTIONNEMENT DE BIOMASSE ET UTILISATION DES FRACTIONS AINSI OBTENUES
Abstract:
(EN) The present invention relates to a method of treating biomass, comprising providing a lignocellulosic biomass feedstock; contacting the biomass feedstock in a mixture, which is formed by the biomass, water and an alkaline agent, with an oxidizing agent at an elevated temperature; and continuing the contacting of the biomass feedstock with the oxidizing agent until a notable part of the lignin is solubilised. The step of providing the biomass feedstock comprises contacting a biomass raw-material containing cellulose, hemicellulose and lignin in an aqueous phase with an alkaline agent; continuing the contacting of the biomass with the alkaline agent until a significant portion of the hemicellulose is dissolved in the aqueous phase to provide a modified biomass; recovering the modified biomass; optionally opening the structure of the modified biomass by mechanical treatment; and using the modified biomass as a lignocellulosic biomass feedstock. Treating the biomass provides hemicellulose, lignin and cellulose fractions that have a multitude of applications in the bioeconomy.
(FR) La présente invention concerne un procédé de traitement de biomasse, comprenant la fourniture d'un produit de départ de biomasse lignocellulosique ; la mise en contact du produit de départ de biomasse dans un mélange, qui est formé par la biomasse, de l'eau et un agent alcalin, avec un agent oxydant à une température élevée ; et la poursuite de la mise en contact du produit de départ de biomasse avec l'agent oxydant jusqu'à ce qu'une partie notable de la lignine soit solubilisée. L'étape de fourniture du produit de départ de biomasse comprend la mise en contact d'une matière première de biomasse contenant de la cellulose, de l'hémicellulose et de la lignine dans une phase aqueuse avec un agent alcalin ; la poursuite de la mise en contact de la biomasse avec l'agent alcalin jusqu'à ce qu'une partie significative de l'hémicellulose soit dissoute dans la phase aqueuse pour fournir une biomasse modifiée ; la récupération de la biomasse modifiée ; éventuellement l'ouverture de la structure de la biomasse modifiée par un traitement mécanique ; et l'utilisation de la biomasse modifiée en tant que produit de départ de biomasse lignocellulosique. Le traitement de la biomasse fournit des fractions d'hémicellulose, de lignine et de cellulose qui ont une multitude d'applications dans la bioéconomie.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
US20170298152