Abstract: The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.

Abstract: Compositions of manganese accumulating plants.

Abstract: Some variations provide a system for extracting a product from biomass, comprising: a process chamber having an internal volume; one or more mechanical elements configured to controllably and reversibly mechanically seal the process chamber and reduce the internal volume to mechanically compress the biomass; a fluid port in flow communication with the process chamber; and a collection sub-system in flow communication with the fluid port. Other variations provide a method of extracting a product from biomass, the method comprising: introducing biomass into a process chamber; mechanically sealing the process chamber; mechanically compressing the biomass to release a first fluid material; mechanically decompressing the biomass; introducing an extraction solvent into the process chamber; maintaining process-chamber pressure from about 1 bar to about 1000 bar, wherein the extraction solvent extracts a second fluid material; and recovering the second fluid material from the process chamber.

Abstract: The invention relates to a method for treating biomass (2). Biomass (2) is fed to a pressurized prehydrolysis reactor unit (8) by means of a feeding system (5, 7), wherein by means of the feeding system (5, 7) the biomass (2) is compressed. A filtrate is squeezed out of the biomass (2) by means of the feeding system (5, 7), in particular by a first plug screw (5) or a second plug screw (7) of the feeding system (5, 7). The biomass (2) is then thermally treated in the pressurized prehydrolysis reactor unit (8), discharged from the pressurized prehydrolysis reactor unit (8) afterwards, diluted with the filtrate before or after the discharge, and treated with an enzyme subsequently.

Abstract: Lignocellulosic biomass can be fractionated for the purpose of increasing cellulose purity in the pulp, increasing native lignin content of the isolated lignin, and improving cellulose hydrolysis, by performing the steps of: (a) extracting the biomass with an extracting liquid comprising at least 20 wt % of a first organic solvent at a temperature below 100° C.; (b) treating the extracted biomass with a treatment liquid comprising a second organic solvent selected from lower alcohols, ethers and ketones, optionally water and optionally an acid, at a temperature between 120° C. and 280° C., and, optionally: (c) subjecting a cellulose-enriched product stream resulting from step (b) to enzymatic hydrolysis. The first and second organic solvent may be different or the same; in particular they comprise ethanol or acetone.

Abstract: In some variations, the invention provides a process for producing a microcrystalline cellulose material, comprising: fractionating lignocellulosic biomass feedstock in the presence of an acid, a solvent for lignin, and water, to generate cellulose-rich solids and a liquid containing hemicellulose and lignin; chemically and/or mechanically treating the cellulose-rich solids to form microcrystalline cellulose having an average crystallinity of at least 60%; and recovering the microcrystalline cellulose as a pharmaceutical excipient. The pharmaceutical excipient may function as an antiadherent, a binder, a coating, or a disintegrant. In some embodiments, the pharmaceutical excipient further comprises a lignin-derived lubricant, glidant, sorbent, preservative, or other component. The pharmaceutical excipient may be present in a pill, tablet, capsule, powder, slurry, or other pharmaceutically effective and acceptable form.

Abstract: A method including: (a) contacting lime with an extract including a S1 solvent carrying a contaminant load to form a lime treated extract; and (b) reducing the contaminant load by removing solids. Optionally, the method includes washing the lime treated extract with water. Optionally, a pH of the lime treated extract is at least 6.5.

Abstract: The present disclosure provides a catalyst for dehydrogenation of liquid organic hydrogen carriers, including: a support; and a catalytically active ingredient on the support, wherein the support has a pore size of 10 nm or more.

Abstract: A method of forming a composite material includes: a) providing a substrate with fibres, lignin and hemicellulose; b) partially removing the lignin and hemicellulose from the substrate; and c) compressing the remaining substrate to form a compressed substrate. A composite material formed by the method is also provided.

Abstract: The present invention relates to a method for preparing monomers via depolymerisation from lignocellulose-containing biomass.

Abstract: The invention relates to a method and an arrangement for wastewater treatment, in which at least portions of the sewage sludge contained in the wastewater (0) are subjected to a hydrolysis (8). The hydrolysis (8) is carried out as a thermal hydrolysis. After the hydrolysis step (8), a drying process is (19) carried out. The drying process (19) is a process operating with positive pressure in the steam region. At least parts of the steam resulting from the drying process (19), which operates with positive pressure, are fed (20) to the portions of the sewage sludge in the thermal hydrolysis (8).

Abstract: The invention relates to an improved process for separating lignin and monomeric sugars from a liquor comprising lignin and monomeric sugars in a solvent mixture of water and at least one organic solvent, which employs membrane filtration techniques such as nanofiltration and selective water removal, preferably by permeation through a membrane which is selective for water molecules. The invention further relates to a modular system for executing the process according to the invention. The process and system according to the invention are particularly suitable to be incorporated with pre-treatment of lignocellulosic biomass, in particular by organosolv fractionation or solvolysis.

Abstract: The disclosure provides a system for production of reactive intermediates from lignocellulosic biomass. The reactive intermediates can be used as platform chemicals for biological conversions or can be further catalytically upgraded to be used as “drop in” reagents for fuels. The disclosure provides methods and compositions useful for processing biomass to biofuels and intermediates.

Abstract: A method comprising: (a) providing a partially processed sucrose crop product containing at least 2% optionally at least 5% of the sucrose content of said crop at harvest on a dry solids basis, cellulose and lignin; (b) hydrolyzing said partially processed crop product with HCl to produce an acid hydrolyzate stream and a lignin stream; and (c) de-acidifying said hydrolyzate stream to produce a de-acidified sugar solution and an HCl recovery stream. Additional, methods, systems and sugar mixtures are also disclosed.

Abstract: Disclosed herein are methods for improving ethanol production from biomass sources by blocking cellulose from binding to lignin.

Abstract: A method to convert at least a majority of native cellulose I? to cellulose IIII in pretreated or untreated densified biomass is disclosed. The densified biomass (cellulosic or lignocellulosic) is pretreated with anhydrous liquid ammonia or liquid ammonia comprising a solution of at least 80% ammonia. The pretreating can be performed at a temperature from about 4° C. to about 140° C. and a pressure from about 14.7 to about 200 psi. In one embodiment, the densified cellulosic converting pretreatment process is followed by lignin extraction (LE). The total moisture content of the densified biomass and the solution is 30% or less and a weight ratio of liquid ammonia to the densified biomass is from about 0.3:1 to about 2:1. Various products and systems are also disclosed.

Abstract: It is disclosed a process for increasing the enzymatic accessibility of a thermally treated ligno-cellulosic biomass feedstock which has been thermally treated at a severity factor. The process comprises a step of fiber shives reduction, for reducing the amount of long shives. The thermally treated ligno-cellulosic biomass after fiber shives reduction is characterized by having an increased glucans accessibility and by forming a slurry having a low viscosity.

Abstract: The present invention provides a method comprising: (i) contacting a cellulose-comprising input material with an aqueous hydrolyzing solution comprising at least 35% wt. of at least one mineral acid to form a hydrolyzate comprising a mixture of water-soluble carbohydrates and optionally a solid fraction; (ii) contacting said hydrolyzate with an extractant comprising a first solvent S1, to form a first (preferably solid) residue (preferably comprising precipitated carbohydrates, e.g.

Abstract: A method and integrated reactor system are provided for producing one or more organic acids, organic acid degradation compounds, and combinations thereof, from various types of biomass, including sludge from a pulp and paper mill.

Abstract: The present invention relates to a process for production of fermentation products, including bioethanol by non-pressurized pre-treatment, enzymatic hydrolysis and fermentation of waste fractions containing mono- and/or polysaccharides, having a relatively high dry matter content. The process in its entirety, i.e. from non-pressurized pre-treatment over enzymatic hydrolysis and fermentation to sorting of fermentable and non-fermentable solids can be processed at a relatively high dry matter content in a single vessel or similar device using free fall mixing for the mechanical processing of the waste fraction.

Abstract: A method of separating a saccharide from an aqueous product solution of the cellulose hydrolysis process is provided. The aqueous product solution comprises a saccharide and a cellulose swelling agent. The cellulose swelling agent is zinc chloride, magnesium chloride or a combination thereof. The method comprises the following steps in the given order: (a) adding a first tertiary amine and an optional first organic solvent to the aqueous product solution to provide a mixture; (b) performing a solid-liquid separation to obtain a solution from the mixture; and (c) performing a liquid-liquid extraction by adding a second tertiary amine and a second organic solvent to the solution, and then removing the organic phase and collecting the aqueous phase, wherein the first tertiary amine and the second tertiary amine are the same or different, and the first organic solvent and the second organic solvent are the same or different.

Abstract: Described herein is a method for processing straw into an intermediate straw product. The method comprises: (a) treating straw with an alkaline solution having a p H of between about 10 and about 14, at a temperature of between about 20° C. and about 80° C., for a period of between about 6 hours and about 30 hours; (b) separating excess alkaline solution and the treated straw from each other; and (c) maintaining the treated straw in an anaerobic environment at a temperature of between about 30° C. and about 45° C., for a period of between about 6 hours and about 30 hours to produce an intermediate straw product.

Abstract: A solid catalyst is provided. The solid catalyst includes a core particle composed of activated carbon, lignin or iron oxide, and a plurality of hydroxyl groups and sulfonic acid groups formed on the surface of the core particle. A method for preparing a sugar is also provided. The method includes mixing organic acid and the disclosed solid catalyst to form a mixing solution, adding a cellulosic biomass to the mixing solution to proceed to a dissolution reaction, and adding water to the mixing solution to proceed to a hydrolysis reaction to obtain a hydrolysis product.

Abstract: A novel method of separating bio oil (pyrolysis oil) into oxygenated rich species and lignin/phenolic based species in a highly efficient manner is provided. Lignin and phenolic fractions can be separated from light oxygenates from bio oil by use of reversible ?-hydroxysulfonic acid.

Abstract: A method of producing a fine fiber, including treating a cellulose raw material with an enzyme; and fibrillating the treated cellulose raw material; treating with the enzyme under a condition where at least a ratio of endo-glucanase activity to cellobiohydrolase activity that is 0.06 or greater. The cellulose raw material may be a plant fiber. The method efficiently produces a fine fiber from a cellulose raw material at low cost and with a low environmental burden, a fine fiber, and a non-woven fabric.

Abstract: The present invention relates to a method of producing cellulosic sugar from biomass by effective impurity removal and sugar separation, and more particularly to a method for producing cellulosic sugar from biomass. The method includes pretreating the biomass so as to be separated into a solid and a liquid; subjecting the separated liquid to monomerization, concentration and adsorption processes, thereby obtaining xylose; and subjecting the separated solid to second pretreatment, saccharification and lignin separation processes, thereby obtaining glucose. The method allows fermentation inhibitory substances to be removed from pretreated biomass in a cost- and energy-effective process, and is useful for effective production of cellulosic sugar.

Abstract: The present invention concerns yeast strains that have improved properties relative to the specialized strains that are used in the production of first-generation ethanol. In particular, the strains of the invention have an increased ethanol yield, a lower production of glycerol and ethanol production kinetics that are similar or slightly slower than standard strain D1B. The present invention also concerns the yeasts obtained by culturing said strains, and the use of said yeasts and/or of said strains in the industrial production of ethanol.

Abstract: The method of fabricating biocompatible cellulose nanofibrils produces cellulose nanofibrils from used agro-waste Borassus flabellifer leaf stalks. The method uses a three-step process, including alkali treatment, bleaching, and acid hydrolysis to produce cellulose nanofibrils, which may be converted to pellets for storage. The pellets may be converted to a transparent film for cell attachment by dispersion in water and heating in a hot air oven. Testing shows that cellulose nanofibrils made by the method easily attract human mesenchymal stem cells and will be applicable for skin tissue engineering applications.

Abstract: Methods for obtaining purified lignin and the lignin that can be obtained by the methods are described. Methods include processing pretreated lignocellulosic biomass feedstock to recover the lignin and provide a lignin composition with a very low level of impurities such as metals and ash. In addition, the lignin recovered from the process can have a narrow molecular weight distribution and, depending upon the specific stages utilized in the process, can have a predetermined molecular weight. The process includes one or more separation stages in which a lignin-containing feedstock is mixed with a solvent solution. The mixture fractionates to form a solvent-rich liquid phase and a lignin-rich liquid phase, the lignin being partitioned across the phases according to the molecular weight of the lignin. Furthermore, the metal salts of the pretreated lignocellulosic biomass feedstock also partition across the phases.

Abstract: Methods of producing clean (e.g., low sulfur and metal ion content, and free of fermentation inhibitors) sugar and lignin-rich streams, and downstream conversion products, from lignocellulosic biomass, may include obtaining non-chemically pretreated, milled lignocellulosic biomass, reacting the milled lignocellulosic biomass with an enzymatic agent to produce a slurry that includes converted monomeric lignocellulosic sugars and lignin-rich residuals, and separating the slurry into a sugar stream that includes the converted monomeric lignocellulosic sugars and a lignin-rich stream that includes the lignin-rich residuals. The sugar stream, not including water, includes at least 75% monomeric lignocellulosic sugar, less than 0.20% sulfur, and less than 3.0% metal ion content, and the lignin-rich stream includes at least 35% lignin and less than 0.50% sulfur.

Abstract: The present disclosure includes embodiments of methods and systems for reducing the size of lignocellulosic feedstock. The present disclosure also includes embodiments of methods and systems for separating oversized, in process lignocellulosic material, reducing the size of the oversized lignocellulosic material offline, and the reintroducing the lignocellulosic material back into the main process flow after size reduction.

Abstract: A process is defined for the continuous steam pretreatment and fractionation of bagasse to produce a concentrated cellulose solid stream that is sensitive to enzymatic hydrolysis. Valuable chemicals are recovered by fractionating the liquid and vapor stream composed of hydrolysis and degradation products of the hemicellulose. Cellulosic derived glucose is produced for fermentation to biofuels. A hemicellulose concentrate is recovered that can be converted to value added products including ethanol.

Abstract: Process for the production of sugars from biomass including at least one polysaccharide which comprises putting a biomass in contact with an aqueous solution of at least one organic acid having from 1 to 6 carbon atoms, preferably from 1 to 3 carbon atoms, the pH of said aqueous solution being ranging from 0.6 to 1.6, preferably ranging from 0.9 to 1.3. The sugars thus obtained can be advantageously used as carbon sources in fermentation processes for the production of alcohols (e.g., ethanol, butanol), diols (e.g., 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol), lipids, or other intermediates or products. Said alcohols, diols, lipids, or other intermediates or products, can be advantageously used in the chemical industry or in the formulation of fuels for motor vehicles. Said alcohols and said diols can also be advantageously used in the bio-butadiene production.

Abstract: The present invention relates to a process for production of fermentation products, including bioethanol by non-pressurized pre-treatment, enzymatic hydrolysis and fermentation of waste fractions containing mono- and/or polysaccharides, having a relatively high dry matter content. The process in its entirety, i.e. from non-pressurized pre-treatment over enzymatic hydrolysis and fermentation to sorting of fermentable and non-fermentable solids can be processed at a relatively high dry matter content in a single vessel or similar device using free fall mixing for the mechanical processing of the waste fraction.

Abstract: The invention relates to a continuous process for converting carbonaceous material contained in at least two feedstocks into a liquid hydrocarbon product, said feedstocks including at least one feedstock of biomass and at least one feedstock of lignite and/or peat, said feedstocks including the carbonaceous material being in a feed mixture including one or more fluids, said fluids including water and further liquid organic compounds at least partly produced by the process in a concentration of at least 1% by weight, where the process comprises converting at least part of the carbonaceous material by pressurizing the feed mixture to a pressure in the range 50-400 bar, heating the feed mixture to a temperature in the range 250-500° C., and maintaining said pressurized and heated feed mixture in the desired pressure and temperature ranges in a reaction zone for a predefined time; cooling the feed mixture to a temperature in the range 25-200° C.

Abstract: Generally and not exclusively, there is disclosed a method for providing data integrity mechanisms to a system, and converting the characteristics into a database. In an embodiment, system information associating individual tasks of the system with objects that the task references and with objects that the task generates; information describing for individual processes of the system the chain of to-be-executed steps of each process; and information describing physical configuration of the system including an allocation of processes to processors and the relative priority of the processes are developed. From that information, algorithms are implemented to indicate data integrity protection mechanisms, such as task preemption levels, steps of processes to inhibit while a task of a process is executing, process step locks, and indications of steps that may not be execute concurrently with another task from the process.

Abstract: A biomass hydrothermal decomposition apparatus that feeds a solid biomass material 11 from one side of an apparatus body 42, feeds pressurized hot water 15 from the other side, to hydrothermally decompose the biomass material 11 while bringing the biomass material 11 into counter contact with the pressurized hot water 15, dissolves hot-water soluble fractions in hot water, discharges the pressurized hot water to outside from the one side of the apparatus body 42 as a hot-water effluent 16, and discharges a biomass solid 17 to the outside from the other side.

Abstract: In some examples, one or more metal-containing catalysts and one or more waxes can be mixed or otherwise combined to produce an encapsulated catalyst composition. The wax can be at least partially coated on the metal-containing catalyst. A mixture of water and the wax can be agitated or otherwise mixed, and the metal-containing catalyst can be added to or otherwise combined with the water and wax mixture to produce a wax emulsified catalyst. A plurality of lignocellulose substrates, one or more oxidants, and the encapsulated catalyst composition can be mixed or otherwise combined to produce a lignocellulose binder mixture. The lignocellulose binder mixture can be heated to produce a composite product.

Abstract: Disclosed is a method of separating carbohydrate, including: mixing formic acid with heteropoly acid, chloride or bromide of lithium, magnesium, calcium, zinc, or iron, or combinations thereof to form a mixing liquid. The method also includes dissolving a cellulose biomass by the mixing liquid to form a solution, mixing water and the solution to hydrolyze the cellulose biomass for forming a carbohydrate solution, and mixing an extractant and the carbohydrate solution to extract the formic acid out of the carbohydrate solution. The heteropoly acid, the chloride or bromide of lithium, magnesium, calcium, zinc, or iron, or combinations thereof in the carbohydrate solution is separated out of the carbohydrate solution by ion exclusion chromatography separation to obtain a carbohydrate.

Abstract: A method and integrated reactor system are provided for producing one or more organic acids, organic acid degradation compounds, and combinations thereof, from various types of biomass, including sludge from a pulp and paper mill.

Abstract: Compositions comprising C5 and C6 saccharides of varying degrees of polymerization and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.

Abstract: Compositions comprising C5 and C6 saccharides of varying degrees of polymerization and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.

Abstract: The present invention relates to methods of processing lignocellulosic material to obtain hemicellulose sugars, cellulose sugars, lignin, cellulose and other high-value products. Also provided are hemicellulose sugars, cellulose sugars, lignin, cellulose, and other high-value products.

Abstract: In some aspects, the present disclosure relates to a method of hydrolyzing a polysaccharide to obtain the corresponding saccharides using an amino acid solution. In some embodiments, the present disclosure provides a method of using an amino acid salt such as hydrogen glycine in a solution to obtain a monosaccharide such as glucose, xylose, or fructose.

Abstract: Processes for recovering sugars and nicotine from a tobacco biomass include feeding a biomass of tobacco plants and subcritical water to a reactor, hydrolyzing the biomass of tobacco plants with the subcritical water at a temperature between about 150° C. and 305° C. and recovering a liquid product and a solid product from the reactor, wherein the liquid product contains water-soluble sugars and nicotine.

Abstract: The disclosure provides a process for separating fermentation inhibitors from a biomass-derived hydrolysate, comprising: introducing a biomass-derived liquid hydrolysate stream to a stripping column; introducing a steam-rich vapor stream to the stripping column to strip fermentation inhibitors (such as acetic acid) from the liquid hydrolysate stream; recovering a stripped liquid stream and a stripper vapor output stream; compressing the stripper vapor output stream; introducing the compressed vapor stream, and a water-rich liquid stream, to an evaporator; recovering, from the evaporator, an evaporated liquid stream and an evaporator output vapor stream; and recycling the evaporator output vapor stream to the stripping column as the steam-rich vapor stream. Other variations utilize a rectification column to recover a rectified liquid stream and a rectification column vapor stream, and recycle the rectification column vapor stream to the stripping column as the steam-rich vapor stream.

Abstract: A novel method of reducing the melting point of a peptide-based biopolymer using a nitrogen-containing compound as a plasticizer is provided. The peptide-based biopolymer can be keratin or silk. The nitrogen-containing compound can be one or more amino acids or other nitrogen-containing compounds (except urea), all of which have a melting temperature above approximately 133° C., the decomposition temperature of urea. Pellets made using this novel process can be used as animal feed and soil amendments (fertilizer) to increase the adsorption of amino acids in the animal or in the soil, respectively.

Abstract: In an embodiment of the present disclosure, a sugar product and method for fabricating the same is provided. The method includes mixing an acid compound and lithium chloride, magnesium chloride, calcium chloride, zinc chloride or iron chloride or lithium bromide, magnesium bromide, calcium bromide, zinc bromide or iron bromide or heteropoly acid to form a mixing solution, adding a cellulosic biomass to the mixing solution for a dissolution reaction, and adding water to the mixing solution for a hydrolysis reaction to obtain a sugar product. The present disclosure also provides a sugar product fabricated from the method.

Abstract: The invention relates to a process of detoxifying pretreated lignocellulose-containing material comprising washing the pretreated lignocellulose-containing material in a washing solution and treating the used washing solution to remove an enzyme inhibitor and/or an inhibitor of a fermenting organism before recycling the used washing solution.

Abstract: Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and system are provided for the efficient fractionation of lignocellulosic biomass into cellulose, hemicellulose sugars, lignin, and acetic acid. The cellulose thus obtained is highly amorphous and can be readily converted into glucose using known methods. Fermentable hemicellulose sugars, low-molecular-weight lignin, and purified acetic acid are also major products of the process and system. The modest process conditions and low solvent/solid ratios of some embodiments of the invention imply relatively low capital and processing costs.