Abstract

By X-ray structural analysis, the following structural parameters of vitrinite concentrates from coal of different metamorphic stages are determined: the number of carbon atoms in each lamella (n_C), the width of the lamellas (L_a), their stacking height (L_c), the number of polyaromatic layers in each stack (N), and the packing density of the lamellas (ρ). Later metamorphic stages are associated with increase in L_c, L_a, n_C, N, and ρ in the vitrinite concentrates, with symbatic decrease in the interplane distance (d₀₀₂). For vitrinite samples from coal of later metamorphic stages (R_o,r = 1.41%), the mean number of layers in a stack is 7–8, and the number of carbon atoms per layer is 14–15. The number of arene layers is linearly related to the stack height. These results are in good agreement with literature data for coal of different metamorphic stages.

中文翻译：

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不同变质阶段煤中维甲酸的X射线结构分析

摘要

通过X射线结构分析，确定了来自不同变质阶段的煤的镜质精矿的以下结构参数：每个薄片中的碳原子数（n _C），薄片的宽度（L _a），其堆积高度（L _c），每个堆叠中的多芳族层数（N）和薄片的堆积密度（ρ）。后期变质阶段与镜质精矿中L _c，L _a，n _C，N和ρ的增加有关，同时平面间距的减小也与此有关（d ₀₀₂）。对于后来变质阶段的煤（R _o，r = 1.41％）的镜质样品，烟囱中的平均层数为7-8，每层碳原子数为14-15。芳烃层的数量与堆叠高度线性相关。这些结果与不同变质阶段煤的文献资料非常吻合。