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Position: Home > Articles > Study on the Sulfuric Acid Hydrolysis of Rice Straw Journal of Anhui Agricultural Sciences 2011,39 (4) 1899-1901

稻草秸秆硫酸水解研究

作  者:
黄欢喜;姚茂君;姚柳
单  位:
吉首大学化学化工学院;吉首大学植物资源保护与利用湖南省高校重点实验室;吉首大学林产化工工程湖南省重点实验室
关键词:
稻草秸秆;浓硫酸;水解
摘  要:
[目的]优化稻草秸秆浓硫酸水解法的条件。[方法]在单因素试验的基础上,固定稻草秸秆粒度为20~40目,以液固比(V/W)、硫酸质量分数、反应温度和反应时间4个因素进行正交试验。[结果]4个因素对稻草秸秆水解率的影响程度为:硫酸质量分数>液固比>反应温度>反应时间。稻草秸秆的最佳水解条件为:硫酸质量分数70%,液固比(V/W)12∶1,反应温度70℃,反应时间为3 h。在此条件下,稻草秸秆水解率达77%以上。[结论]该研究为综合开发利用稻草秸秆奠定了基础。
译  名:
Study on the Sulfuric Acid Hydrolysis of Rice Straw
作  者:
HUANG Huan-xi et al(College of Chemistry and Chemical Engineering in Jishou University,Jishou,Hunan 416000)
关键词:
Rice straw;Concentrated sulfuric acid;Hydrolysis
摘  要:
[Objective] The research aimed to optimize the concentrated sulfuric acid hydrolysis conditions of rice straw.[Method] Based on the single factor test,the liquid-solid ratio(V/W),the mass fraction of sulfuric acid,the reaction temperature and the reaction time were selected to do the orthogonal experiment when the particle size of rice straw was during 20-40 screen mesh.[Result] The effect degree of four factors on the hydrolytic ratio was the mass fraction of sulfuric acid >liquid-solid ratio> reaction time >reaction temperature.The optimum hydrolysis condition of rice straw was: mass fraction of sulfuric acid 70%,liquid-solid ratio12∶ 1,reaction time 3 h and reaction temperature 70 ℃.The hydrolytic ratio of rice straw reached above 77% in the condition.[Conclusion] The research provided the basis for the comprehensive exploitation and utilization of rice straw.

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