Abstract: In an embodiment of the present disclosure, a method for preparing a sugar is provided. The method includes mixing an organic acid and a solid acid 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 sugar.

Abstract: The disclosure provides a method for liquefying biomass, including: (a) mixing a solid organic ammonium salt containing single nitrogen with at least one organic compound which is capable of forming a hydrogen bond with the solid organic ammonium salt to form a first mixture; (b) heating the first mixture until the first mixture becomes a solution; (c) mixing a biomass and an acid catalyst with the solution to form a second mixture; and (d) heating the second mixture to make the biomass therein convert into a liquefied 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: In an embodiment of the present disclosure, a method for preparing a sugar is provided. The method includes mixing an organic acid and a solid acid 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 sugar.

Abstract: In an embodiment of the present disclosure, a method for fabricating a sugar product is provided. The method includes mixing formic acid 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: 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: In an embodiment of the disclosure, a method for preparing a phenolic compound is provided. The method includes providing a lignin depolymerization product, and hydrogenating the lignin depolymerization product under iron oxide and hydrogen gas to prepare a phenolic compound. The prepared phenolic compound is a crude phenolic composition including phenol, methylphenol, dimethylphenol or a combination thereof.

Abstract: The disclosure provides a method for liquefying biomass, including: (a) mixing a solid organic ammonium salt containing single nitrogen with at least one organic compound which is capable of forming a hydrogen bond with the solid organic ammonium salt to form a first mixture; (b) heating the first mixture until the first mixture becomes a solution; (c) mixing a biomass and an acid catalyst with the solution to form a second mixture; and (d) heating the second mixture to make the biomass therein convert into a liquefied product.

Abstract: In one embodiment of the disclosure, a method for refining oil is provided. The method includes contacting an oil with hydrogen to perform a hydrodeoxygenation reaction using iron oxide as a catalyst, wherein the iron oxide comprises ferrous oxide (FeO), ferrum dioxide (FeO2), ferric oxide (Fe2O3), ferroferric oxide (Fe3O4), or combinations thereof.

Abstract: A crown-shaped fixture set for a tubular fixture device is described in the present invention, which comprises a pair of crown-shaped fixtures. The crown-shaped fixture is a disc with a crown portion. The center of the disc has an aperture. The crown portion of the fixture is shaped like a conoid. The bottom of the crown portion forms a plurality of positioning slots. Pluralities of tangential grooves corresponding to positioning slots are formed on the crown portion. Thus, the crown portion is capable of positioning and fixing paper tubes of various bore sizes, so that the paper tube can be reused and the contact area between the paper tube and the crown portion can be increased and stabilizes the rotation movement of the paper tube.