低煤阶煤的煤岩成分液化性能及实验研究  

Liquefaction properties and experiment on lithotype of low rank coal

作　　者：晋香兰[1] 降文萍[1] 李小彦[1] 张泓[1] 田新娟[1] 

机构地区：[1]煤炭科学研究总院西安研究院,陕西西安710054

出　　处：《煤炭学报》2010年第6期992-997,共6页Journal of China Coal Society

基　　金：国家重点基础研究发展计划(973)资助项目(2009CB219602);社会公益研究专项资助项目(2005DIB5J212)

摘　　要：以西北侏罗纪煤中的镜煤和丝炭为研究对象,液化实验结果表明:同一变质程度的镜煤的液化转化率(90.67%)、油产率(58.88%)均高于丝炭;而不同变质程度的镜煤和丝炭,因其结构和性质的差异,随变质程度的增高,液化性能整体呈降低趋势。镜质组和惰质组分别作为镜煤和丝炭的主要物源,形成于截然不同的泥炭沼泽环境,致使结构和性质差异大。显微组分特征、红外光谱和分子结构模型分析表明:镜煤中活性组分含量高,H含量和脂肪氢含量高,大分子结构模型中21个单芳环,具有芳香性的吡咯环2个;丝炭中活性组分含量低于镜煤,含氧官能团多,碳含量和芳香氢含量高,大分子结构模型中14个单芳环、6个双芳环、1个三芳环,具有芳香性的吡咯环2个。Vitrain and fusain of Jurassic coal in Northwest China was studied for liquefaction,the result shows that conversion yield and oil yield of vitrain are higher than same metamorphose fusain and the liquefaction yield of vitrain and fusain of different metamorphose decrease with the increasing of metamorphose because of different structure and property.Vitrinite and inertinite were formed distinct peat swamp environment as main origin of vitrain and fusain,which was essential reason for liquefaction properties.Coal maceral,infrared-ray spectra and molecular structure mode indicate that vitrian has higher active components,hydrogen and aliphatic hydrogen,with twenty-one single aromatic rings and two aromatic pyrrole rings in molecular structure mode.Whereas the active components of fusain are less than vitrain,with more oxygen-containing functional group,higher carbon,aromatic hydrogen,fourteen single aromatic rings,six double aromatic rings,one three aromatic rings and two aromatic pyrrole rings.

关 键 词：低煤阶煤 镜煤 丝炭 煤直接液化 红外光谱 分子结构模型 

分 类 号：TQ529[化学工程—煤化学工程]