摘要
本文采用了多种现代结构分析方法(FTIR,~1H-、^(13)C-NMR,FDMS,MS/MS)对抚顺烟煤吡啶抽出物的正庚烷不溶、正庚烷/苯(1∶1)可溶馏份(ZM2馏份)进行了详细的结构解析,得到了其平均分子量、分子量分布及其中30种化合物的分子结构,为研究抚顺烟煤的结构提供了有价值的信息。
The pyridine soluble fraction obtained by extracting the vitrinite of Fushun bituminous coal was separated into several subfractions by adsorption chromatography on silica gel. The ZM2 subfraction is insoluble in pure n-heptane, but soluble in n-heptane/benzene mixture (1:1). After characterization by ~1H-^(13)C-NMR, FTIR, ultimate analysis and VPO molecular weight measurement, it was found that the ZM2 subfraction could be represented by an average molecular structure, in which 63% available peripheral sites are occupied by C_1-C_5 alkyl chains and naphthenic groups. According to FDMS, MS/MS of ZM2 subfraction, it could be concluded that ZM2 subfraction was composed of more than 30 kinds of aromatic compounds whose molecular structures were also identified.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1991年第1期64-70,共7页
Journal of Fuel Chemistry and Technology
基金
中国科学院科学基金
关键词
烟煤
吡啶抽出物
结构表征
馏份
extract
separation
structural characterization
