芒草化学成分及热解性能研究  

Chemical Composition and Thermogravimetric Analysis of Miscanthus

作　　者：张艳红[1] 张柯[1] 王志花[1] 刁英[2] 周发松[2] 胡中立[2] 靳素荣[1] 

机构地区：[1]武汉理工大学理学院化学系,武汉430070 [2]武汉大学生命科学学院,武汉430072

出　　处：《天然产物研究与开发》2014年第12期1930-1933,1952,共5页Natural Product Research and Development

基　　金：国家863项目(2012AA101801)

摘　　要：以芒草的10个新品系为研究对象,对其纤维素、半纤维素、木质素的含量进行了分析。结果表明,纤维素、半纤维素和木质素含量在不同品系间的差异均达到了极显著水平。采用TGA研究了芒草的热解过程、通过反应动力学计算比较了各样品表观活化能,结果显示,不同品系芒草的热解活化能具有明显的差异,奇岗、南荻、W819、南荻四倍体具有较高的活化能。从这些品系的能源用途品质性状表现看,它们可能分别适用于不同的转化途径和利用方式。A total of ten accessions of Miscanthus were selected to analyze the content of chemical composition of lignocellulosic biomass including cellulose,hemicellulose and lignin. The results showed that the difference were significant（ F F0. 01） among the ten samples in content of cellulose,hemicellulose and lignin. On the other hand,the pyrolysis process was investigated by thermogravimetric analysis（ TGA） and apparent activation energies were compared by chemical kinetics among ten Miscanthus accessions. The results showed pyrolysis energies were obviously different among the different accessions. The four accessions,Miscanthus x giganteus,Miscanthus lutarioriparius,W819 and Miscanthus lutarioriparius（ tetraploid）,showed higher activation energy. According to energy use related quality characters,these accessions can be applied to different ways of conversion and utilization.

关 键 词：芒草 纤维素 半纤维素 木质素 热重分析 

分 类 号：R284.2[医药卫生—中药学] TK6[医药卫生—中医学]