成煤环境约束下的煤分子结构差异特征  

Differences in Coal Molecular Structure with Various Coal Forming Environment

作　　者：杜磊 郭庆 高立凯 Du Lei;Guo Qing;Gao LiKai(Shaanxi Coalfield Geophysical Surveying and Mapping Co.,Ltd.,Xi’an 710005)

机构地区：[1]陕西省煤田物探测绘有限公司,陕西西安710005

出　　处：《石化技术》2024年第8期95-97,共3页Petrochemical Industry Technology

摘　　要：认识不同成煤地质背景的煤分子结构是煤炭清洁高效转化的基础,分别选择两种不同煤相特征的样品进行分子结构对比,结果表明:具有更高凝胶化程度、更少木质组织的N22样品芳环取代结构类型更为多样且数量均匀,脂肪结构也更为丰富,尤以边基侧链结构最为显著。相反的,Z52样品的芳环五取代结构明显多于其它取代结构,含氧结构和脂肪结构的类型也相对较少。Understanding the molecular structure of coal with different coal forming geological background is the basis for clean and efficient coal transformation.Two samples with different coal facies are selected for molecular structure comparison.The results show that N22 samples with higher gel degree and less wood tissue have more diverse and uniform aromatic ring substitution structure types,and more abundant fat structure,especially the side chain structure of the side group.On the contrary,the aromatic pentasubstituted structure of Z52 sample is significantly more than other substituted structures,and the types of oxygen-containing and fatty structures are relatively few.

关 键 词：煤环境 煤相 分子结构 

分 类 号：TQ530[化学工程—煤化学工程]