当前位置: 首页 > 文章 > 超临界CO_2中磷钨酸催化稻秆纤维素水解 湖北农业科学 2015 (8) 1950-1953
Position: Home > Articles > Hydrolysis of Rice Straw Cellulose Catalyzed by Phosphotungstic Acid in Supercritical Carbon Dioxide Hubei Agricultural Sciences 2015 (8) 1950-1953

超临界CO_2中磷钨酸催化稻秆纤维素水解

作  者:
廖崇静;罗珊珊;方涛;范国枝
单  位:
武汉轻工大学化学与环境工程学院
关键词:
稻秆;纤维素;超临界CO2;磷钨酸;水解
摘  要:
研究了超临界CO2中磷钨酸催化稻秆纤维素水解反应,并采用二硝基水杨酸(DNS)法和间接碘量法分别测定水解产物中还原糖和葡萄糖的产率。考察了CO2压力、去离子水及磷钨酸的用量、反应温度以及反应时间对纤维素水解反应的影响。结果表明,当CO2压力为8 MPa,去离子水用量为8 m L,反应温度为140℃,反应时间为6 h,催化剂磷钨酸用量为0.10 mmol时,还原糖产率达到34.1%。
译  名:
Hydrolysis of Rice Straw Cellulose Catalyzed by Phosphotungstic Acid in Supercritical Carbon Dioxide
作  者:
LIAO Chong-jing;LUO Shan-shan;FANG Tao;FAN Guo-zhi;School of Chemical Engineering and Technology, Wuhan Polytechnic University;
关键词:
rice straw;;cellulose;;supercritical carbon dioxide;;phosphotungstic acid;;hydrolysis
摘  要:
The hydrolysis of rice straw cellulose catalyzed by phosphotungstic acid in supercritical carbon dioxide was studied.The influence of the reaction factors including the pressure of carbon dioxide, the amount of water and phosphotungstic acid,reaction temperature and reaction time was investigated. The yield of reducing sugar and glucose was measured by 3, 5-dinitrosalicylic acid method and indirect iodometry, respectively. The results showed that the yield of reducing sugar reached34.1% with 0.1 mmol phosphotungstic, 8 MPa carbon dioxide and 8 m L water at 140 ℃ for 6 h.

相似文章

计量
文章访问数: 11
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊