Differences in Coal Molecular Structure with Various Coal Forming Environment
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.
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