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1. WO2020112702 - LIGNIN EXTRACTION WITH VOLATILE TRIALKYLAMINES

Publication Number WO/2020/112702
Publication Date 04.06.2020
International Application No. PCT/US2019/063139
International Filing Date 26.11.2019
IPC
C07G 1/00 2011.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
GCOMPOUNDS OF UNKNOWN CONSTITUTION
1Low-molecular-weight derivatives of lignin
C08B 1/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
1Preparatory treatment of cellulose for making derivatives thereof
C10L 5/36 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
5Solid fuels
02Briquettes consisting mainly of carbonaceous materials of mineral origin
34Other details of the briquettes
36Shape
CPC
C07G 1/00
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
GCOMPOUNDS OF UNKNOWN CONSTITUTION
1Lignin; Lignin derivatives
C08B 1/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
1Preparatory treatment of cellulose for making derivatives thereof ; , e.g. pre-treatment, pre-soaking, activation
C10L 5/36
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
5Solid fuels
02Solid fuels such as; briquettes consisting mainly of carbonaceous materials of mineral ; or non-mineral; origin
34Other details of the ; shaped fuels, e.g.; briquettes
36Shape
Applicants
  • BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY [US]/[US]
Inventors
  • REDKO, Mikhail
  • JACKSON, James, E.
  • SAFFRON, Chrisopher, M.
  • LACIVITA, Leo
Agents
  • PARKS, Steven, M.
Priority Data
62/771,33126.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) LIGNIN EXTRACTION WITH VOLATILE TRIALKYLAMINES
(FR) EXTRACTION DE LIGNINE À L'AIDE DE TRIALKYLAMINES VOLATILES
Abstract
(EN)
The disclosure relates to methods for extracting lignin from lignocellulosic biomass using volatile trialkylamines. A lignocellulosic biomass is combined with an aqueous extraction solution including the trialkylamine and water to provide a biomass extraction mixture that can at least partially extract lignin from the lignocellulosic biomass. The method further includes removing the trialkylamine from the biomass extraction mixture. The method further relates to the utilization of the resulting materials. For example, the lignin extract can be used to make carbon fibers, carbon-carbon materials, or polyamines. The delignified biomass can be used as feed for animals, fungi and/or bacteria. Also, the cellulosic or carbohydrate components of the delignified biomass can be hydrolyzed into pentoses and/or hexoses, which can be used as a feed or starting material for the subsequent conversion into other products. Acetic acid, removed from the biomass in form of trialkylammonium acetate, can be recovered from the mixture for further use or conversion into other chemicals.
(FR)
L'invention concerne des procédés d'extraction de lignine à partir de biomasse lignocellulosique à l'aide de trialkylamines volatiles. L'invention consiste à combiner une biomasse lignocellulosique avec une solution d'extraction aqueuse comprenant une trialkylamine et de l'eau pour obtenir un mélange d'extraction de biomasse qui peut extraire au moins partiellement la lignine de la biomasse lignocellulosique. Le procédé consiste également à éliminer la trialkylamine du mélange d'extraction de biomasse. Le procédé concerne en outre l'utilisation des matériaux obtenus. Par exemple, l'extrait de lignine peut être utilisé pour fabriquer des fibres de carbone, des matériaux carbone-carbone ou des polyamines. La biomasse délignifiée peut être utilisée comme aliment pour animaux, champignons et/ou bactéries. En outre, les composants cellulosiques ou glucidiques de la biomasse délignifiée peuvent être hydrolysés en pentoses et/ou hexoses, qui peuvent être utilisés en tant que matière première ou de départ pour la conversion ultérieure en d'autres produits. L'acide acétique, retiré de la biomasse sous forme d'acétate de trialkylammonium, peut être récupéré à partir du mélange pour une utilisation ultérieure ou une conversion en d'autres produits chimiques.
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