On the basis of analysis of reflectivity of coal vitrinite, X-diffraction and micro-FTIR, this paper studies the component and the structure of high rank coal.

• 通过对镜质组反射率的测定、X衍射及显微傅立叶变换红外等实验对高煤阶煤的成分及结构进行了详细的分析,认为高煤阶煤演化具有明显的阶跃性特征。