摘要
本文对经典煤核结构模型评述后,提出了多元非晶煤结构概念。用X射线衍射方法研究了南桐煤镜质组的原子径向分布,论证了煤大分子中同时存在芳香结构单元和脂环结构单元,它们对X射线衍射强度均有贡献,非晶煤结构的有序性不大于1nm。文中还讨论了非晶煤结构模型,以及煤结构在煤化过程中的变化规律。
After the classic structural model of coal had been reviewed,the new conceptofmulti element amorphous structure of coal was put forward The radial distribution ofatomsin coals was studied by X ray diffraction The results have shown that there are aro maticcarbon atom layers and alicyclic carbon atom layers in the macromolecules of coal,andboththe aromatic layers and alicyclic layer scatter coherently X ray,and that the order ofamorphouscoal structure is less than 1 nm The model and variation of amorphous coalstructurewere discussed in this paper
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1997年第1期72-77,共6页
Journal of Fuel Chemistry and Technology
关键词
煤结构
X射线衍射
原子径向分布
coal structure,amorphous,X ray diffraction,RDF method