高温液态水法水解木聚糖的实验研究  

Experimental research on xylan hydrolysis by hot liquid water

作　　者：庄新姝[1] 袁振宏[1] 许敬亮[1] 孙永明[1] 吴创之[1] 

机构地区：[1]中国科学院广州能源研究所中国科学院可再生能源与天然气水合物重点实验室,广东广州510640

出　　处：《现代化工》2008年第5期39-41,43,共4页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(50776093)

摘　　要：在自行设计的小型固定床反应器上,进行了高温液态水法水解木聚糖的实验并分析了产物。在所选温度范围内,较佳工况为160℃7、0 min,得到了69.26%的还原糖转化率;产物分析发现液体产物中的糖类,木三糖、木二糖和木糖居多,产物中还包含有酸类、醛类、酮类以及醇类等极性小分子产物;温度的升高导致残渣形状细碎且有发泡和烧结成球的现象。On the small batch reaction unit designed by the authors,the xylan hydrolysis by hot hquid water is examined and the products are analyzed. At the chosen temperature range between 160℃ and 200℃, the optimal reacting conditions are 160℃ and 70 min, the reducing sugars yield can be 69.26 %. The product analysis shows that： （1） the liquid products include xylose, oligosaceharides of xylan, and other polarity components such as acids, fuffurals, alcohols, etc. ; （2） the increase of temperature will induce smaller residues which may be bubbling and turned to httle balls,

关 键 词：高温液态水法 水解 木聚糖 产物分析 

分 类 号：TK6[动力工程及工程热物理—生物能]