Zhejiang Huakang Pharmaceutical Co., Ltd.

Zhejiang University

Jiaozuo Huakang Polyol Co., Ltd.

Chengjun Liao

Mian Li

Jiaxing Luo

Yi Zheng

Shuncheng Fang

Changhui Hu

Songtao Jiang

Guowei Luo

Aijuan Wu

Yuan Zhou

Yuguo Zheng

Zhiqiang Liu

Wulong Yang

Qiang Wu

Xiaojian Zhang

Weidong Xu

Shufang Qin

Xiaoyang Zheng

Mingqian Yang

Xuesong Jiang

Deshui Chen

Xinping Cheng

Fangming Zeng

Lanlan Chen

Zhiqian Liu

Xiuxiu Wang

Zhiyao Wei

Baoxing Mao

Cui Lin

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. The present invention further provides a method of jointly producing erythritol and liquid sorbitol by using a corn starch. The present invention not only improves the purity of erythritol but also obtains liquid sorbitol, thus improving the utilization value of the corn starch.

System and method for jointly producing erythritol and liquid sorbitol by using corn starch

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. The obtained xylose liquid exchanges heat with the hemicellulose liquid in the plate-type feed and discharge heat exchanger to decrease a temperature of the xylose liquid, whereas a temperature of the hemicellulose liquid is increased. Further disclosed is a method using the system. The simultaneous feed and discharge heat exchanges greatly reduce energy consumption, and feed and exchange are continuously run, thereby improving the production efficiency and simplifying manual operations.

System for preparing xylose liquid by continuously hydrolyzing hemicellulose and method thereof

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.

Systems and methods for co-producing xylitol and caramel pigment by utilizing xylose mother liquid

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 awith 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.

Methods for co-producing erythritol and arabinose by using xylose mother liquor

Related to are a device and a method for performing continuous carbonation and impurity removal for xylose mother liquor. The device includes an alkali addition unit, a continuous carbonating unit, a discharge controlling unit, a COsupply station, a vapor station and an after-carbonation tank, wherein the alkali addition unit is configured to add Ca(OH)alkaline liquid into xylose mother liquor, the continuous carbonating unit is configured to introduce COsupplied from the COsupply station into the alkali-added xylose mother liquor to perform carbonation and mixing so as to remove impurities such as colloid and pigment in xylose mother liquor, the discharge controlling unit is configured to introduce COsupplied from the COsupply station and vapor transported from the vapor station into the carbonated xylose mother liquor so as to control and stabilize a pH value of the carbonated xylose mother liquor, and the after-carbonation tank is configured to collect and temporarily store the carbonated and impurity-removed xylose mother liquor so as to prepare for a next procedure. Further, a method using the device is disclosed. According to the device and the method, the pH of xylose mother liquor is continuously regulated and stabilized and continuous feeding and discharge are performed with highly automated device so as to achieve continuous and uninterrupted production, and thus facilitate improving the production efficiency.

Device and method for performing continuous carbonation and impurity removal for xylose mother liquor

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Zhejiang, China

Chengjun Liao