高效生产聚葡萄糖工艺开发及装置改进  

Development of Efficient Polydextrose Production Process and Device Improvement

作　　者：曹雪 武力达 赵国兴 郭昱滢 安鸿雁 贾立耕 周哲 吴杰 闫寒 CAO Xue;WU Lida;ZHAO Guoxing;GUO Yuying;AN Hongyan;JIA Ligeng;ZHOU Zhe;WU Jie;YAN Han(National Engineering Research Center for Corn Deep Processing,Jilin COFCO Biochemical Co.,Ltd.,Changchun Jilin 130033,China)

机构地区：[1]吉林中粮生化有限公司,玉米深加工国家工程研究中心,吉林长春130033

出　　处：《当代化工》2024年第12期2957-2961,共5页Contemporary Chemical Industry

摘　　要：聚葡萄糖是由食用级葡萄糖、山梨醇、柠檬酸以一定比例混合后在高温真空条件下熔融缩聚而得,其生产中发现聚合温度控制不稳定、聚合黏度高且随过程波动、物料传热差导致焦糖化反应、聚合速度慢致使产品颜色深等不足。以合成产物中还原糖质量分数、色度为参考指标,研究加热方式、控温方法、反应温度、反应时间、搅拌方式、反应负压等工艺条件对聚葡萄糖合成效果的影响,优化聚葡萄糖合成工艺,提供优化后对现有装置进行改进的方法,使产品聚合过程得到有效控制,从而高效生产聚葡萄糖。Polydextrose is produced by mixing edible glucose,sorbitol and citric acid in a certain proportion and then melting and condensing under high-temperature and vacuum conditions,and there are some shortcomings in the production,such as unstable polymerization temperature control,high polymerization viscosity and fluctuation with the process,poor heat transfer of materials leading to caramelization reaction,and slow polymerization speed leading to deep color of products.In this paper,taking the reducing sugar mass fraction and chroma of the synthesized product as reference indexes,the influence of heating mode,temperature control method,reaction temperature,reaction time,polymerization viscosity,reaction negative pressure and other process conditions on the synthesis effect of polydextrose was studied,the polydextrose synthesis process was optimized,and the optimized method to improve the existing device was put forward,so as to make the product polymerization process under effective control,and thus produce polydextrose in an efficient manner.

关 键 词：温度不稳定 聚合黏度高 物料传热差 优化工艺 装置改进 

分 类 号：TQ281[化学工程—有机化工]