Abstract: The present disclosure provides a method for co-producing a xylitol and a caramel pigment. The method includes: transporting a raw material of a xylose mother liquid in a raw material tank to a filter for filtering impurities to obtain a filtered raw material of the xylose mother liquid, and transporting the filtered raw material of the xylose mother liquid to a nanofiltration membrane device to obtain a decolorized xylose mother liquid; transporting the decolorized xylose mother liquid to a first ion exchange device to obtain an ion exchange liquid; and transporting the ion exchange liquid to a chromatographic separation device and obtaining an extracted liquid and a raffinate liquid; performing a refined hydrogenation process on the extracted liquid through a refined hydrogenation assembly to obtain a crystal xylitol, and performing a browning reaction process on the raffinate liquid through a browning reaction assembly to obtain the caramel pigment.

Abstract: Embodiments of the present disclosure provide a method for preparing a high-purity arabinose crystal, comprising operations of dissolving, blending, ion exchange, decolorization and filtration, fine filtration, evaporation and concentration, crystallization, centrifugation, and drying performed in sequence on a low-purity arabinose crystal. Throughout the operations of preparing the arabinose crystal, a pH value of a material may be controlled between 4.3 and 7.5, and a temperature may not exceed 70° C. This prevents arabinose from transforming into impurities under a high temperature, thereby maintaining and improving a purity of the prepared arabinose crystal.

Abstract: Related to is a system for preparing xylose liquid by continuously hydrolyzing hemicellulose, including a neutralizing unit, an acid-adjusting unit, a feeding unit, a liquefaction ejecting unit, a feed and discharge heat-exchanging unit and a discharge controlling unit. The neutralizing unit includes a raw material tank, a neutralizing concentrated sulfuric acid pump and a neutralizing pipeline mixer, the acid-adjusting unit includes an acid-adjusting concentrated sulfuric acid pump, an acid-adjusting pipeline mixer and an acid-adjusting tank, the feeding unit includes a feed tank, the liquefaction ejecting unit includes a liquefaction ejector and a liquefaction maintainer, the feed and discharge heat-exchanging unit includes a plate-type teed and discharge heat exchanger and a first discharge temperature sensor, and the discharge controlling unit includes a discharge valve and a reflux valve.

Abstract: The embodiment of the present disclosure provides a system for co-producing a xylitol and a caramel pigment by utilizing a xylose mother liquid, including an extraction assembly, a refined hydrogenation assembly and a browning reaction assembly. The extraction assembly is configured to obtain an extracted liquid and a raffinate liquid respectively by performing an initial extraction on the xylose mother liquid; the refined hydrogenation assembly is configured to prepare a crystal xylitol by performing a refined hydrogenation process on the extracted liquid; the browning reaction assembly is configured to prepare the caramel pigment by performing a browning reaction process on the raffinate liquid.

Abstract: The embodiments of the present disclosure provides a method of co-producing erythritol and arabinose by using a xylose mother liquor, wherein an extract and a raffinate are obtained by separating the xylose mother liquor through a first chromatography, the extract is configured to prepare crystallized xylose, the raffinate and the liquid glucose or crystallized glucose are blended and erythritol is produced by using a Yarrowia lipolytica with high osmotolerant and a high conversion rate. erythritol crystals are obtained by centrifugation and crystallization first by using characteristics of low solubility degree and easy crystallization of the erythritol, the arabinose raffinate having a high content of arabinose is obtained by separating a centrifuged erythritol mother liquor through a second chromatography, and arabinose crystals are obtained based on the arabinose raffinate.

Abstract: The embodiments of the present disclosure provides a method of coproducing erythritol and arabinose by using a xylose mother liquor, wherein an extract and a raffinate are obtained by separating the xylose mother liquor through a first chromatography, the extract is configured to prepare crystallized xylose, the raffinate and the liquid glucose or crystallized glucose are blended and erythritol is produced by using a Yarrowia lipolytica with high osmotolerant and a high conversion rate. Erythritol crystals are obtained by centrifugation and crystallization first by using characteristics of low solubility degree and easy crystallization of the erythritol, the arabinose raffinate having a high content of arabinose is obtained by separating a centrifuged erythritol mother liquor through a second chromatography, and arabinose crystals are obtained based on the arabinose raffinate.

Abstract: A system and method for producing cellulosic ethanol by biomass saccharification and fermentation is provided. The system includes a first reactor configured to carry out an enzymatic hydrolysis reaction of a biomass feedstock, a second reactor configured to carry out a fermentation reaction of the biomass feedstock, and a collection tank configured to collect the cellulosic ethanol. The first reactor and second reactor are provided with an enzymatic hydrolysis dosing pipe and a fermentation dosing pipe, respectively. An outlet of the first reactor is connected to an inlet of the second reactor through a fermentation pipe. An outlet of the second reactor is connected to an inlet of the first reactor through a discharge pipe that is provided with a first discharge pipe configured to discharge material from the second reactor. The first reactor is connected to an inlet of the collection tank through an ethanol pipe.

Abstract: The present disclosure relates a method for preventing agglomeration in a mixture of xylitol and calcium aspartate. The method includes the following steps: first adjusting and measuring water activities of xylitol particles and calcium aspartate particles; then mixing the calcium aspartate particles with a water activity in a range of 0.50-0.52 with the xylitol particles with a water activity in a range of 0.48-0.56 to obtain a mixture of xylitol and calcium aspartate; or mixing the calcium aspartate particles with a water activity in a range of 0.52-0.58 with the xylitol particles with a water activity in a range of 0.50-0.60 to obtain a mixture of xylitol and calcium aspartate; or adding maltitol particles in a weight ratio of 5%-20% to a total mass of the xylitol particles and the maltitol particles to the mixture of xylitol and calcium aspartate.

Abstract: The embodiment of the present disclosure provides a system for co-producing a xylitol and a caramel pigment by utilizing a xylose mother liquid, including an extraction assembly, a refined hydrogenation assembly and a browning reaction assembly. The extraction assembly is configured to obtain an extracted liquid and a raffinate liquid respectively by performing an initial extraction on the xylose mother liquid; the refined hydrogenation assembly is configured to prepare a crystal xylitol by performing a refined hydrogenation process on the extracted liquid; the browning reaction assembly is configured to prepare the caramel pigment by performing a browning reaction process on the raffinate liquid.

Abstract: Related to are a device and a method for performing continuous carbonation and impurity removal for xylose mother liquor.

Abstract: The present invention relates to a system for jointly producing erythritol and liquid sorbitol by using a corn starch, including a liquefaction tank, a saccharification tank, a filter and a nanofiltration assembly. The liquefaction tank is used to perform liquefaction for the corn starch, the saccharification tank is used to perform saccharification for the liquefied material, the filter is used to filter out impurities in the saccharified material to obtain a glucose liquid, and the nanofiltration assembly is used to perform nanofiltration for the filtered glucose liquid to respectively obtain a dialysate and a concentrate. The system further includes a fermentation and crystallization assembly for performing fermentation and crystallization for the dialysate to prepare crystalline erythritol, and a hydrogenation and evaporation assembly for performing hydrogenation and evaporation for the concentrate to prepare liquid sorbitol.

Abstract: The present invention provides a system for recovering protein in a production process of an ultrahigh maltose syrup, including a saccharification tank, an enzyme preparation tank, a first plate heat exchanger, a second plate heat exchanger, a plate and frame filter, a buffer tank and a rotary drum filter. The present invention further provides a method of recovering protein by using the system. After the sugar liquid in the saccharification tank is stood, the protein floats at the upper part of the saccharification tank and the lower liquid is clear and transparent and thus the sugar liquid can be directly filtered. When the saccharification tank is discharged, the lower liquid is firstly discharged with the remaining liquid being bottoms containing protein. During a production process, enzymatic hydrolysis is performed for the sugar liquid containing protein before filtration to improve the filtration effect of the sugar liquid. Assisted by the plate and frame filter, protein can be recovered.

Abstract: Related to are a device and a method for performing continuous carbonation and impurity removal for xylose mother liquor.

Abstract: Related to is a system for preparing xylose liquid by continuously hydrolyzing hemicellulose, including a neutralizing unit, an acid-adjusting unit, a feeding unit, a liquefaction ejecting unit, a feed and discharge heat-exchanging unit and a discharge controlling unit. The neutralizing unit includes a raw material tank, a neutralizing concentrated sulfuric acid pump and a neutralizing pipeline mixer, the acid-adjusting unit includes an acid-adjusting concentrated sulfuric acid pump, an acid-adjusting pipeline mixer and an acid-adjusting tank, the feeding unit includes a feed tank, the liquefaction ejecting unit includes a liquefaction ejector and a liquefaction maintainer, the feed and discharge heat-exchanging unit includes a plate-type teed and discharge heat exchanger and a first discharge temperature sensor, and the discharge controlling unit includes a discharge valve and a reflux valve.