A saccharified solution production method includes: a saccharifying step of saccharifying hemicellulose or cellulose contained in cellulosic biomass to C5 or C6 saccharides by subjecting a slurry of cellulosic biomass to a hot water treatment in a supercritical state or subcritical state; a washing step of successively washing a solid in the slurry with washing water after the saccharifying step, by using multiple stages of thickeners for washing arranged in series so that the direction of movement of the solid in the slurry and the direction of movement of overflow water are opposite to each other; and a concentration step of removing a solid residue from the washing water recovered in the washing step by using a thickener for still standing that is different from the thickeners for washing, and then concentrating a supernatant of the thickener for still standing by using a concentration device to give a saccharified solution.

The present invention relates to systems, methods, and processes for the production of conversion products such as furanic products from biomass such as lignocellulosic materials.

The present invention relates to systems, methods, and processes for the production of conversion products such as furanic products from biomass such as lignocellulosic materials.

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.

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.

A process for the separation of a monosaccharide from an aqueous solution comprising the monosaccharide, in particular a hydrolysate of a polysaccharide containing biomass, characterized in that a) the solution comprises one or more salts or mineral acids, b) the solution is contacted with a zeolite adsorbent preferably of BEA zeotype for adsorbing the monosaccharide on the zeolite, c) the zeolite with the adsorbed monosaccharide is separated from the solution, d) the monosaccharide is separated from the zeolite absorbent. The process in a chromatographic process, in particular SMB, produces relatively highly concentrated and pure monosaccharide solution in water.

A process for the separation of a monosaccharide from an aqueous solution comprising the monosaccharide, in particular a hydrolysate of a polysaccharide containing biomass, characterized in that a) the solution comprises one or more salts or mineral acids, b) the solution is contacted with a zeolite adsorbent preferably of BEA zeotype for adsorbing the monosaccharide on the zeolite, c) the zeolite with the adsorbed monosaccharide is separated from the solution, d) the monosaccharide is separated from the zeolite absorbent. The process in a chromatographic process, in particular SMB, produces relatively highly concentrated and pure monosaccharide solution in water.

Processing of a reaction product mixture containing at least one volatile organic compound as well as lignin, lignin derived compounds, and/or unextracted cellulose and hemicellulose using a recovery system comprising at least two flashers or at least one flasher and at least two reboilers. In a particular embodiment, the reaction product mixture comes from reactions involving deconstruction (or digestion) of biomass, particularly cellulosic biomass which contains various polysaccharides (e.g., carbohydrates) and lignin.

Processing of a reaction product mixture containing at least one volatile organic compound as well as lignin, lignin derived compounds, and/or unextracted cellulose and hemicellulose using a recovery system comprising at least two flashers or at least one flasher and at least two reboilers. In a particular embodiment, the reaction product mixture comes from reactions involving deconstruction (or digestion) of biomass, particularly cellulosic biomass which contains various polysaccharides (e.g., carbohydrates) and lignin.

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.