南票热变煤中不溶有机质的谱学研究

THE I. R.,ROCK-EVAL AND XRD STUDIES OF THE INSOLUABLE ORGARNIC MATTER OF THE THERMALLY ALTERED COALS FROM NANPIAO COALFIELD

通过对南票热变煤的Ⅰ·Ｒ、Ｒｏｃｋ—ｅｖａｌ与ＸＲＤ的研究，对其成煤母质、煤级、矿物与热变煤的物理化学结构演化等方面有了新的认识：该煤生成有低等生物参与；煤脱矿作用使脂肪结构优先低温氧化，煤中矿物对Ｓ２峰影响较大；Ｔｍａｘ、ＴＰＩ、ＯＰＩ、ｄ００２、Ｌｃ等为较好的成熟度参数，而ＨＩ、Ａ因子、Ｃ因子、脂芳比受成熟度与母质双重因素影响；ｄ００２、Ｌｃ与温度和有机质受热速度有关；镜质体反射率主要取决于稠环芳香结构规整程度；Ｌａ、Ｌｃ下降与Ｌａ／Ｌｃ＞１是热变煤特征；热变煤的物理化学结构演化类似区域变质煤。

ome following conclusions coal-forming material,ronk (maturity),mineral and the evolution of the physicial or chemical structure of the thermally altered coals one reached by means of i. R.,Rock--eval and XRD. The coal forming material of Taiyuan Formation in Nanpiao had some algae and bacteria.Demineralization by coal treatment makes the aliphatic structure low temperature oxidation. The effect of the mineral in thermally altered coals on the S, peak con't been neglected. Tmax,TPI,OPI,d002 and L. are better maturity parameters,but HI,A factor,C factoy and the ratio of the aliphatics to aromatics are depended both on the type of the organic matter. d,,2 and L. one related with temperature as wall as heating rate. The reflectances of vitrinite are mainly deperded on the ement of arrangement of the polycyclic aromatic hydrocarbon. The reduction of L.,L. and L./L, more than one are the characteristics of the thermally altered coals. The evolution of the physical or chemical structure of the thermally altered coals is different from that of the geothermal metamorphic coals,but is similar to that of the telemagmatic metamorphic coals.