SIMULTANEOUS DELIGNIFICATION AND DEAGGREGATION OF BIOMASS

• Main Author: ATALLA, RAJAI
• Format: Patent
• Language: English; French
• Published: 16.08.2012
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; ORGANIC MACROMOLECULAR COMPOUNDS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SPIRITS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; VINEGAR; WINE

Disclosed are methods and systems for treating a lignocellulosic material or lignocellulosic containing biomass to delignifiy the material or biomass and make it more accessible for enzymatic or chemical modification. The system and methods include treating lignocellulose-containing material or biomass with an alkali in an exemplary alcohol/water co-solvent system. The treatment deaggregates the lignocellulosic material and at the same time delignifies the starting material or substrate. A liquid fraction contains a lignin composition having lignin is in a form closer to its native state than any known laboratory procedure is also provided. L'invention concerne des procédés et des systèmes de traitement d'une matière lignocellulosique ou d'une biomasse contenant une matière lignocellulosique pour délignifier la matière ou biomasse et la rendre plus accessible pour une modification enzymatique ou chimique. Le système et les procédés consistent à traiter une matière ou biomasse contenant de la lignocellulose avec un alcali dans un système de co-solvants alcool/eau à titre d'exemple. Le traitement désagrège la matière lignocellulosique et en même temps délignifie la matière de départ ou le substrat. L'invention concerne également une fraction liquide contenant une composition de lignine comportant la lignine sous une forme plus proche de son état natif que dans n'importe quelle procédure de laboratoire connue.