竹黄酸性亚硫酸氢钠水解提取戊糖的条件优化  

Preparation of Furfural from Bamboo Chip with Acid Sodium Bisulfate Hydrolysis

作　　者：别士霞[1] 沈葵忠[1,2] 焦健[1,2] 高桂林[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业局林产化学工程重点开放性实验室,生物质化学利用国家工程实验室,江苏南京210042 [2]中国林业科学研究院林业新技术研究所,北京100091

出　　处：《化工技术与开发》2013年第7期1-5,共5页Technology & Development of Chemical Industry

基　　金："十二五"国家科技支撑计划课题(2012BAD23B02)

摘　　要：以造纸厂生产线的竹黄废屑为原料,对固液比、温度、时间和加药量等影响酸性亚硫酸氢钠预水解的主要条件进行了优化,并与稀酸水解进行比较。实验结果表明,在温度175℃,固液比1∶5,时间30min,硫酸浓度1%,亚硫酸氢钠浓度1.77%时,戊糖收率达到78.57%,水解底物得率为78.28%。在最优条件下亚硫酸钠水解的戊糖收率高于稀酸水解收率。竹黄废屑具有制备糠醛的潜在应用前景,经亚硫酸氢钠预水解后的残渣可以用于制备生物乙醇。With bamboo sweeps from Sichuan paper mill as raw materials, main factors were tested, included the solid-liquid ratio, the reaction temperature, the reaction time and the concentration of dilute sulfuric acid and sodium bisulfate. As a result, under the condition that reaction temperature 175℃, solid-liquid ratio 1：5, reaction time 30min, concentration of dilute sulfuric acid 1% and sodium bisulfate 1.77%, the pentose yield was 78.57%, which was higher than acid hydrolysis. The bamboo reed waste had a poten- tial application prospect in furfural preparation.

关 键 词：亚硫酸氢钠水解 戊糖 竹黄 稀酸水解 

分 类 号：TQ353[化学工程]