摘要
根据秸秆乙醇的工艺特点,对硝酸乙醇法测定玉米秸秆、小麦秸秆、稻草及其预处理后物料的纤维素含量进行了研究.优化了粉碎时长、硝酸-乙醇混合液处理遍数、试样粒度及抽滤漏斗孔径四个参数.确定了优化后的测定方法：秸秆试样粉碎时长15 s,硝酸-乙醇混合液处理4遍,粒度40~60目,使用G2玻璃砂芯漏斗.秸秆预处理后物料试样粉碎时长3 s,硝酸-乙醇混合液处理3遍,粒度40~60目,使用G3玻璃砂芯漏斗.
The contents of cellulose of corn stalk,wheat straw,rice straw and the pretreated sample of straws have been researched by nitric acid-ethanol methodology according to the characteristics of straws biofuel ethanol.Four parameters as the duration of comminuting sample,the times of treating sample by nitric acid-ethanol liquid mixture,the particle size of sample and the aperture of tundish for sucking filtration have been optimized.The optimized pevrameters： for straw sample,comminut 15 s,treat by nitric acid-ethanol liquid mixture 4 times,sample aperture 40-60 mesh,use G2 glass sand core tundish.for pretreated sample,comminut 3 s,treat by nitric acid-ethanol liquid mixture 3 times,sample aperture 40-60 mesh,use G3 glass sand core tundish.
出处
《化学研究》
CAS
2011年第4期52-55,71,共5页
Chemical Research
基金
国家高技术研究发展(863)计划项目(2008AA10Z338-02)
关键词
秸秆乙醇
纤维素含量
硝酸乙醇法
粒度
孔径
straw biofuel ethanol
the contents of cellulose
nitric acid-ethanol measure
particle size
aperture
