文献类型：期刊文献

中文题名：生物质酸催化两步水解反应的研究

英文题名：STUDY ON THE TWO-STAGE HYDROLYSIS OF BIOMASS USING ACID AS CATALYST

作者：亓伟[1];张素平[2];王展[3];袁振宏[1];庄新姝[1];颜涌捷[2]

机构：[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,广州510640;[2]华东理工大学生物质能源研究中心,上海200237;[3]山东省莱芜供电公司,莱芜271100

年份：2012

卷号：33

期号：8

起止页码：1257

中文期刊名：太阳能学报

外文期刊名：Acta Energiae Solaris Sinica

收录：CSTPCD;;EI(收录号：20124315599777);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家高技术研究发展(863)计划(2009AA05Z436;2010AA101606);中国科学院知识创新工程(KSCX2-YW-G-063);中国科学院广州能源研究所所长创新基金(o907r21001);中国科学院可再生能源与天然气水合物重点实验室资助项目(0807k3)

语种：中文

中文关键词：生物质;稀硫酸;水解;连续反应器;机理

外文关键词：biomass ; dilute sulfuric acid ; hydrolysis ; continuous reactor ; mechanism

摘要：以松木木屑为原料,在自行设计的连续水解反应装置中进行稀硫酸催化连续水解的研究。通过正交试验法对木屑水解的反应条件进行优化,得到分别以木糖和葡萄糖为目标产物的较优工艺条件;以正交试验得到的工艺条件为基础,对木屑两步水解反应进行单因素分析,得到的最佳工艺分别为:反应温度170℃,反应时间5min,酸浓度1%,液固比7和反应温度190℃,反应时间7min,酸浓度3%,液固比9;通过分析半纤维素和纤维素的水解情况,探讨半纤维素水解对纤维素水解的促进作用机理。
The dilute sulfuric acid-catalyzed hydrolysis of pine sawdust was studied in our designed continuous device. The hydrolysis conditions were optimized by orthogonal test when seting xylose and glucose as the desired products. Based on the conditions obtained before, the two-stage hydrolysis of pine sawdust was investigated by single factor experiments, where the optimized conditions were reaction temperature 170℃, reaction time 5min, acid concentration 1% , ratio of liquid to solid（L/S） 7 and reaction temperature 190℃, reaction time 7min, acid concentration 3% , L/S 7, respectively. Improvement of hemicelluloses hydrolysis to cellulose hydrolysis was observed through the hydrolysis process and the mechanism was discussed.