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WO2010058185A1 - Transformation de biomasse - Google Patents

Transformation de biomasse Download PDF

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Publication number
WO2010058185A1
WO2010058185A1 PCT/GB2009/002731 GB2009002731W WO2010058185A1 WO 2010058185 A1 WO2010058185 A1 WO 2010058185A1 GB 2009002731 W GB2009002731 W GB 2009002731W WO 2010058185 A1 WO2010058185 A1 WO 2010058185A1
Authority
WO
WIPO (PCT)
Prior art keywords
biomass
lignin
hemicellulose
cellulose
water
Prior art date
Application number
PCT/GB2009/002731
Other languages
English (en)
Inventor
Stephen Brooks
Original Assignee
Bio-Sep Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bio-Sep Limited filed Critical Bio-Sep Limited
Priority to ES09795511.6T priority Critical patent/ES2664048T3/es
Priority to PL09795511T priority patent/PL2358759T3/pl
Priority to EP09795511.6A priority patent/EP2358759B1/fr
Priority to BRPI0921987-0A priority patent/BRPI0921987B1/pt
Priority to EA201100837A priority patent/EA024959B1/ru
Priority to DK09795511.6T priority patent/DK2358759T3/en
Priority to NZ593402A priority patent/NZ593402A/en
Priority to CN2009801470923A priority patent/CN102239186A/zh
Priority to CA2743788A priority patent/CA2743788C/fr
Priority to AU2009316977A priority patent/AU2009316977B2/en
Priority to US13/130,034 priority patent/US20110313141A1/en
Publication of WO2010058185A1 publication Critical patent/WO2010058185A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
    • C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H8/00—Macromolecular compounds derived from lignocellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0003—General processes for their isolation or fractionation, e.g. purification or extraction from biomass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B37/00—Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
    • C08B37/0006—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
    • C08B37/0057—Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid beta-D-Xylans, i.e. xylosaccharide, e.g. arabinoxylan, arabinofuronan, pentosans; (beta-1,3)(beta-1,4)-D-Xylans, e.g. rhodymenans; Hemicellulose; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/224—Use of means other than pressure and temperature

Definitions

  • the present invention relates to a novel process for the treatment of biomass materials.
  • the process provides a method of separating biomass material into its major constituent parts.
  • lignocellulosic material Most plant biomass materials, such as wood, are referred to as lignocellulosic material and comprise three main components, namely, cellulose, hemi -cellulose and lignin.
  • Cellulose is a polysaccharide consisting of a linear chain of ⁇ (l— *4) linked
  • D-glucose units and will usually comprise 7,000 to 15,000 glucose molecules.
  • Hemi cellulose is a polysaccharide related to cellulose but is derived from several sugars including glucose, xylose, mannose, galactose, rhamnose, and arabinose and consists of shorter chains of around 200 sugar units.
  • Lignin is: a cross-linked macromolecule with molecular masses in excess of
  • Lignin is rich in the phenylpropanoids, such as p-coumaryl alcohol, coniferyl alcohol, and sinapyl alcohol.
  • i Lignin is considered a desirable source of base chemicals as a substitute for petrochemicals.
  • any process for the separation of lignin from biomass material has the minimal environment impact and therefore uses "green” technology and is low in energy consumption and waste products.
  • U.S. Patent No. 4,520,105 describes a process involving a chemical pre-treatment with a mixture of water and lower alcohols or acetone, after which the residue is separated and then treated with a similar solvent mixture at elevated temperature.
  • aqueous alcohol or aqueous acetone mixtures cannot easily be separated into two phases.
  • separation of the lignin from dissolved sugars would require further processing through, for example, extensive washing.
  • U.S. Patent No. 4,594,130 describes a cooking process, in the absence of oxygen, at elevated temperatures with a neutral or acidic mixture of alcohol and water containing a magnesium, calcium or barium salt as a catalyst.
  • the catalyst is for the purpose of aiding retention of the hemicellulose in the cellulosic cake.
  • European Patent Application 86305606.5 describes a process for digesting lignocellulosic material with an ester, an organic lignin solvent and water.
  • the lignin solvent is either an organic acid or alcohol or mixtures thereof, and it is miscible in both the ester and the water. Cooling of the liquor apparently results in some phase separation, but a centrifuge is also required.
  • US Patent No. 5,730,837 describes the use of sulphuric acid in a 24% water, 44% methyl isobutyl ketone and 32% ethanol in the separation of biomass at 140 0 C and resulting in an 18% yield of lignin based on the wood charged.
  • lignin present in the biomass e.g. wood
  • the hemicellulosic material and dissolved sugars remain in the organic phase and the cellulose remains as pulp in the solid remains from the biomass, e.g. wood.
  • a method of processing biomass which comprises the digestion of biomass material in an aqueous solvent system subjected to ultrasonic waves, e.g. ultrasound, and separating the biomass into its constituents of lignin, hemicellulose and cellulose.
  • a mixture of biomass e.g. wood; water, a water miscible solvent and a water immiscible solvent at varying acidities are digested and separately, simultaneously or sequentially subjected to sonication, e.g. ultrasound, in order to break the biomass into cellulose, hemicellulose and lignin.
  • sonication e.g. ultrasound
  • further water may be added to aid the separation in the organic and aqueous phases.
  • the use of ultrasonication is especially advantageous in, inter alia, the hydrolysis of the hemicelluloses present in the biomass.
  • the lignin present in the biomass is generally extracted into the organic phase, the hemicellulosic material and dissolved sugars is extracted into the aqueous phase and the cellulose remains in the biomass residue.
  • the method of the invention comprises digestion of a lignocellulosic material in an acidic aqueous medium.
  • acids may be used, in one aspect of the invention it is desirable that the acid is of as high a pH as possible.
  • a mineral acid such as sulphuric acid, phosphoric acid or nitric acid, may be used.
  • sulphuric acid may be preferred.
  • a preferred acid may be an organic acid, such as an aliphatic carboxylic acid, an aliphatic dicarboxylic acid an aminocarboxylic acid or an aminodicarboxylic acid.
  • organic acid When an organic acid is used in the process of eth invention it may generally have a pKa of less than 5, e.g. from 2 to 5.
  • an aliphatic carboxylic acid or an aliphatic dicarboxylic acid may contain 1 to 6 carbon atoms in the molecule, preferably 1 to 4 carbon atoms.
  • organic carboxylic acids include, but shall not be limited to, acetic acid and formic acid. Such acids are recognised as being weak acids.
  • the acid may be a dicarboxylic acid.
  • the carboxylic acid may be a Zwitter ionic acid, such as an aminocarboxylic acid, for example, glutamic acid. It will be understood by the person skilled in the art that that the concentration of the acid may vary and that mixtures of the aforementioned acids may be used.
  • ultrasonication is beneficial in the hydrolysis of the hemicelluloses present in the biomass.
  • ultrasonication may be used as a pre-treatment prior to applying other processes to the biomass material as described herein.
  • we have surprisingly found that ultrasonication is beneficial in the hydrolysis of the hemicelluloses to monosaccharide, the aldopentoses, such as, ribose, arabinose, xylose and lyxose. It will be well understood by the person skilled in the art that such monosaccharides are beneficial in their own right or in the generation of fermentation products, etc.
  • hemicellulose material may be a mixture of hemicelluloses materials and may comprise the hemicellulose separated from a bulk biomass material or may comprise the biomass material itself.
  • an essential element of the present invention is the use of sonication as an energy source, e.g. the use of ultrasound.
  • ultrasound as a power source may be in the range of from 2 to 10 MHz, for the purposes of the present invention the ultrasound used will generally have a frequency in the range of from 10 to 250 kHz, alternatively, from 20 to 100 kHz.
  • the process liquor or slurry is subject to the operating vicinity of the ultrasonic probe if used, or of an ultrasonic energy transducer, such as a wrap-around ultrasonic energy transducer assembly, if such a configuration is employed.
  • an ultrasonic energy transducer such as a wrap-around ultrasonic energy transducer assembly
  • a suitable example of such a device known in industry and commercially as the ProsonitronTM, is documented in WO 00/35579.
  • the ultrasonic energy may be applied continuously or in a discontinuous manner, such as by pulsed application. Any suitable source of ultrasonic irradiation may be used.
  • An ultrasonic probe may, for example, be inserted into a mixing vessel, such as a continuous ultrasonic flow cell, an ultrasonic emitter may be contained in the mixing vessel, or the mixing vessel may be housed in an ultrasonic bath or it may have an ultrasound transducer fixed to the external walls of the mixing vessel.
  • the amplitude and frequency of the ultrasound waves affects the rate of nucleation and crystal growth.
  • the frequency of the ultrasound waves may for example be from 16 kHz to 1 MHz, preferably from 10-500 kHz, more preferably from 10 - 100 kHz such as at 10, at 20, 40, 60, 80, or 100 kHz or at any frequency therebetween, such as, 30 kHz or 50 kHz.
  • the ultrasonic irradiation is employed at an amplitude or power density that is appropriate for the production of material for a pre-determined application.
  • the amplitude selected may be from about 1 - 30 ⁇ m, typically from 3 - 20 ⁇ m, preferably from 5 - 10 ⁇ m, for example, 6 ⁇ m.
  • the power density for the transducers employed may be from 10 - 100 W/L, preferably from 30-80 W/L, and more preferably from 50-75 W/L, for example 60 W/L or 70 W/L.
  • the present invention is particularly suitable for industrial scale production.
  • the residence time of the mixed components in the ultrasonic flow cell may be preferably greater than 0.1 ms, more preferably greater than 1 ms, more preferably greater than 1 minute, for example between 1 second and 24 hours, more preferably between 1 minute and 6 hours, more preferably between 5 minutes and 1 hour.
  • the ultrasound source may vary depending, inter alia, upon the nature of the biomass, but we have found that an ultrasound source with an energy output of from 50 to 400 W is desirable, e.g. 100 to 300 W or 150 to 250 W, e.g. 200 W.
  • the mechanism by which ultrasound improves the separation of lignin from lignocellulosic material is not well understood, but it may be due to ultrasound's ability to cause cavitation which causes local extremes of temperature and pressure in the liquid where the reaction happens and/or it breaks up solids and removes passivating layers of inert material to give a larger surface area for the reaction to occur over. Sonication reduces the amount of insoluble pulp and increases the yield of organic soluble lignin.
  • the process may be improved, by, for example dewaxing the lignocellulose material prior to reaction.
  • dewaxing may be microbiological, e.g.
  • the digestion process can be made more efficient through preliminary treatment of lignin by fungi. This enables a decrease in the degree of lignin polymerisation and, therefore, facilitates the slowest step of the digestion reaction.
  • the pre-treatment of the biomass material prior to further processing may also be advantageous in that, inter alia, the purity of resulting products may be improved.
  • any biomass will contain not only lignin, cellulose and hemicellulose, but also proteins, waxes, essential oils, inorganic compounds, etc. and the influence of any by-products, e.g. on further processes, may be reduced.
  • the rate of reaction may be faster in a flow regime compared to, for example, a stirred tank.
  • the process of the reaction may include an additional energy source, i.e. in addition to sonication.
  • additional energy sources may be utilised, such as thermal energy.
  • the separation process may be carried out at low temperature, that is, low temperature compared to prior art process.
  • the prior art process described in The process described in US Patent No. 5,730,837 is conducted at a temperature of 140°C and up to as high as 220 0 C, whereas, by contrast, the process of the present invention may be conducted at a temperature of about 4O 0 C, for example from 30 to 6O 0 C. Therefore, according to the present invention an additional energy source which may be utilised may be microwave energy.
  • microwave energy it is known to use microwave energy in the treatment of biomass materials, the use of microwave in association with sonication is novel per se and is considered within the scope of the present invention.
  • the process of the present invention may be desirably carried out at atmospheric pressure, however, it is within the scope of the present invention for the reaction to be carried out at elevated pressure.
  • a ketone such as an aliphatic ketone.
  • the ketone is an aliphatic ketone having at least 4 carbon atoms (and may have as many as 10 carbon atoms).
  • Aliphatic ketones which may be mentioned include, for example, methyl ethyl ketone, methyl isopropyl ketone, methyl propyl ketone, methyl butyl ketone, methyl isobutyl ketone, methyl isoamylketone, diethyl ketone, ethyl isopropyl ketone, ethyl propyl ketone, and ethyl isobutyl ketone.
  • a particular ketone which may be mentioned is methyl isobutyl ketone (MIBK).
  • MIBK methyl isobutyl ketone
  • the ketone is present in the solvent system in an amount of from about 5 to 65% w/w.
  • the weight ratio of ketone to water is preferably in the range of about 1:9 to 5:1, so long as a single phase of digesting liquid is obtained.
  • the water miscible or water soluble solvent may preferentially be an alcohol.
  • the alcohol may have less than about 4 carbon atoms to assure that it will be water- miscible.
  • Useful alcohols which may be mentioned include, for example, methanol, ethanol, propanol, isopropanol and butanol.
  • the alcohol is typically present in an amount of from about 25 to 35% w/w.
  • the weight ratio of solvent(s) to biomass may vary depending upon, inter alia, the nature of the biomass, the nature of the solvent, etc. However, the ratio may be from 4:1 to 10:1.
  • the phase may be easily separated by the addition of either water or water-immiscible solvent.
  • the lignin present in the water-immiscible solvent may be isolated by conventional techniques, such as, for example, evaporation of the usually volatile, water-immiscible solvent.
  • the hemicellulose and dissolved sugars will generally be in the aqueous or water miscible phase and cellulosic material remaining in an insoluble cake.
  • the process described herein is advantageous in that, inter alia, a large proportion of the materials employed in the method described herein is recyclable, for example, there may be as much as 95% recovery of the materials e.g. solvents, acid, etc used in the method of the invention.
  • lignin, hemicellulose and/or cellulose prepared by the process as hereinbefore described we provide lignin, hemicellulose and/or cellulose prepared by the process as hereinbefore described.
  • lignin prepared by the process as hereinbefore described we provide hemicellulose prepared by the process as hereinbefore described.
  • cellulose prepared by the process as hereinbefore described we provide cellulose prepared by the process as hereinbefore described.
  • the acid hydrolysis process may be replaced or supported by hydrolysis using one or more heterogeneous catalysts, such as xeolite, palladium, and the like.
  • the solvent separation process as hereinbefore described may comprise the use of one or more solvent compatible membranes, for example a nanomembrane, which aid the separation of for example, water miscible and water immiscible components.
  • membrane separation may be desirable in that, inter alia, it would minimise or remove the need for the use of certain solvents and especially organic solvents which may be environmentally undesirable.
  • the process as hereinbefore described may comprise a continuous process or a batch process.
  • a continuous process is preferred.
  • biomass may be treated at or close to source, in which case a batch process may be desirable.
  • the ultrasound is provided to the process liquor or slurry in a vessel using a multiplicity of ultrasonic transducers attached to a wall of the vessel in an array extending both circumferentially and longitudinally, each transducer being connected to a signal generator so that the transducer radiates no more than 3 W/cm 2 , the transducers being sufficiently close together and the number of transducers being sufficiently high that the power dissipation within the vessel is between 25 and 150 W/litre.
  • a system for the processing of biomass which comprises the digestion of biomass material in an aqueous solvent system subjected to ultrasonic waves and separating the biomass into its constituents of lignin, hemicellulose and cellulose.
  • a reactor e.g. a mobile reactor
  • for the processing of biomass which comprises the digestion of biomass material in an aqueous solvent system subjected to ultrasonic waves and separating the biomass into its constituents, lignin, hemicellulose and cellulose.
  • an assembly for the processing of biomass may comprise a plurality of reactors arranged to enable the performance of a "biorefinery process”.
  • the reactor as hereinbefore described may comprises a reaction vessel, an ultrasound source and a phase separation system.
  • the reactor as hereinbefore described may optionally comprise one or more of a microwave source, a solvent recycling or regeneration system, a membrane separation system, etc.
  • compositions used in the reproduced examples of this study are: 15 g of dry biomass (dried in vacuum oven to ensure known amount of water in the liquor, and chipped by planer into 1-3 mm chips), 150 ml of liquor (24% water, 44% methylisobutylketone MIBK, 32 % ethanol), 0.05 mol L-I sulphuric acid H 2 SO 4 .
  • the main effect of sonication appears to be to make the process of conversion of lignin polymer into organic-soluble lignin more effective and/or in making lignin more accessible to organic solvent.
  • the ultrasonic device 7 irradiates the mixture with ultrasonic energy and the mixture flows through an outlet 9 and into the jacketed vessel 1, completing a continuous closed flow loop. The flow cycle is repeated until the desired product mixture is attained.
  • the process mixture is thoroughly and rapidly mixed; the volume of the vessel 1 and the flow rates being such that the residence time in the ultrasonic flow cell chamber 7 is for example, 10s or 60s or 100s.
  • the closed loop process apparatus of Figure 7 may be configured so that, for example, the process slurry may be removed from the apparatus via valve 10 and pump 1, and for example by introducing additional delivery means 12, 13 for further process liquor or slurry.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • Sustainable Development (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

La présente invention concerne une méthode de transformation de biomasse qui comprend la digestion d'un matériel de type biomasse dans un système solvant aqueux soumis à des ultrasons et la séparation de la biomasse en ses constituants : lignine, hémicellulose et cellulose. La présente invention concerne également un système destiné à la transformation de biomasse qui comprend la digestion d'un matériel de type biomasse dans un système solvant aqueux soumis à des ultrasons et la séparation de la biomasse en ses constituants : lignine, hémicellulose et cellulose.
PCT/GB2009/002731 2008-11-24 2009-11-23 Transformation de biomasse WO2010058185A1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES09795511.6T ES2664048T3 (es) 2008-11-24 2009-11-23 Procesamiento de biomasa
PL09795511T PL2358759T3 (pl) 2008-11-24 2009-11-23 Przetwarzanie biomasy
EP09795511.6A EP2358759B1 (fr) 2008-11-24 2009-11-23 Transformation de biomasse
BRPI0921987-0A BRPI0921987B1 (pt) 2008-11-24 2009-11-23 método para processamento de biomassa
EA201100837A EA024959B1 (ru) 2008-11-24 2009-11-23 Переработка биомассы
DK09795511.6T DK2358759T3 (en) 2008-11-24 2009-11-23 BIOMASS TREATMENT
NZ593402A NZ593402A (en) 2008-11-24 2009-11-23 Processing of biomass
CN2009801470923A CN102239186A (zh) 2008-11-24 2009-11-23 生物质的处理
CA2743788A CA2743788C (fr) 2008-11-24 2009-11-23 Transformation de biomasse
AU2009316977A AU2009316977B2 (en) 2008-11-24 2009-11-23 Processing of biomass
US13/130,034 US20110313141A1 (en) 2008-11-24 2009-11-23 Processing of Biomass

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0821419.9A GB0821419D0 (en) 2008-11-24 2008-11-24 Processing of biomass
GB0821419.9 2008-11-24

Publications (1)

Publication Number Publication Date
WO2010058185A1 true WO2010058185A1 (fr) 2010-05-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/002731 WO2010058185A1 (fr) 2008-11-24 2009-11-23 Transformation de biomasse

Country Status (13)

Country Link
US (1) US20110313141A1 (fr)
EP (1) EP2358759B1 (fr)
CN (2) CN107434828A (fr)
AU (1) AU2009316977B2 (fr)
BR (1) BRPI0921987B1 (fr)
CA (1) CA2743788C (fr)
DK (1) DK2358759T3 (fr)
EA (1) EA024959B1 (fr)
ES (1) ES2664048T3 (fr)
GB (1) GB0821419D0 (fr)
NZ (1) NZ593402A (fr)
PL (1) PL2358759T3 (fr)
WO (1) WO2010058185A1 (fr)

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WO2013082530A1 (fr) * 2011-12-02 2013-06-06 Coastal Waters Biotechnology Group, Llc Récipients de fertilisation d'une biomasse
CN103806316A (zh) * 2014-03-04 2014-05-21 临沂高新区无敌盾新材料科技有限公司 一种细化生姜纤维素及其制备方法
WO2014132056A1 (fr) * 2013-02-27 2014-09-04 Bio-Sep Limited Opérations de procédé pour le fractionnement d'une biomasse
WO2014132055A1 (fr) * 2013-02-27 2014-09-04 Bio-Sep Limited Optimisation du traitement d'une biomasse
US9421477B2 (en) 2013-08-12 2016-08-23 Green Extraction Technologies Biomass fractionation and extraction apparatus
CN106676921A (zh) * 2016-12-19 2017-05-17 江南大学 一种采用生姜汁加工副产物姜丝纤维制备食品包装纸的方法
AT519535A1 (de) * 2016-12-23 2018-07-15 Univ Wien Tech Herstellungsverfahren
EP3431654A1 (fr) * 2017-07-21 2019-01-23 Andritz Inc. Ultrasonore dissoudre du salin et system de eclatement
WO2020000008A1 (fr) 2018-06-27 2020-01-02 Technische Universität Wien Procédé pour la préparation de particules de lignine
US10981083B2 (en) 2013-08-12 2021-04-20 Green Extraction Technologies Process for fractionation and extraction of herbal plant material to isolate extractives for pharmaceuticals and nutraceuticals
US11174355B2 (en) 2013-08-12 2021-11-16 Green Extraction Technologies Isolation method for water insoluble components of a biomass

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AU2013272255B2 (en) * 2012-06-04 2017-08-17 Bruce K. Redding Jr. Ultrasonically enhanced seed germination system
FI124553B (fi) 2012-07-11 2014-10-15 Bln Woods Ltd Ab Menetelmä biomassan uuttamiseksi
CN103007890B (zh) * 2012-10-11 2014-06-11 广西大学 一种微波、光波和超声波协同催化制备半纤维素基重金属离子吸附剂的方法
CN105142387A (zh) * 2013-07-19 2015-12-09 小布鲁斯·K·雷丁 超声波增强种子萌芽系统
EP3083035A1 (fr) * 2013-12-20 2016-10-26 Shell Internationale Research Maatschappij B.V. Procédés et systèmes de traitement d'un mélange de produits de réaction d'un matériau de biomasse cellulosique
BR112018009790A8 (pt) * 2015-11-16 2019-02-26 Ptt Global Chemical Public Co Ltd processo para fracionamento de biomassa lignocelulósica
KR102001231B1 (ko) * 2017-03-02 2019-07-17 주식회사 지에스나노셀 초음파를 이용한 감압방식의 셀룰로오스 나노화 장치
CN108586770B (zh) * 2018-03-20 2020-11-17 青岛大学 一种从植物生物质中清洁分离木质素和半纤维素的方法
PE20240478A1 (es) 2020-12-03 2024-03-13 Defugo Tech Pte Ltd Descortezador y proceso de descortezado
GB202218784D0 (en) * 2022-12-13 2023-01-25 Bio Sep Ltd Biomass treatment

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