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黄县盆地褐煤的有机岩石学特征与生烃研究

马小敏

马小敏. 黄县盆地褐煤的有机岩石学特征与生烃研究[J]. 煤矿安全, 2015, 46(3): 48-50.
引用本文: 马小敏. 黄县盆地褐煤的有机岩石学特征与生烃研究[J]. 煤矿安全, 2015, 46(3): 48-50.
MA Xiaomin. Study on Organic Petrologic Characteristics and Hydrocarbon Generation of Brown Coal in Huangxian Basin[J]. Safety in Coal Mines, 2015, 46(3): 48-50.
Citation: MA Xiaomin. Study on Organic Petrologic Characteristics and Hydrocarbon Generation of Brown Coal in Huangxian Basin[J]. Safety in Coal Mines, 2015, 46(3): 48-50.

黄县盆地褐煤的有机岩石学特征与生烃研究

Study on Organic Petrologic Characteristics and Hydrocarbon Generation of Brown Coal in Huangxian Basin

  • 摘要: 应用全岩有机岩石学分析和热模拟实验方法,研究了黄县盆地古近系褐煤的显微组分组成、富氢组分及生烃性能。褐煤的显微组分以腐植组为主,其含量为58.0%~91.6%,惰质组含量为0~16.0%,稳定组含量为2.0%~18.8%。褐煤中富氢组分主要来自于稳定组,其中孢子体、树脂体和碎屑稳定体是其主要的生烃组分。热模拟实验表明,随模拟温度的升高,褐煤气态烃转化率以450 ℃为界先慢后快,液态烃在440 ℃(Ro为1.5%)左右达到最高峰,470 ℃以前气态烃转化率低于液态烃,在470 ℃以后气态烃高于液态烃。
    Abstract: By using the whole-rock analysis of organic petrology and thermal simulation experiment method, some indexes are studied, including the maceral composition, hydrogen-rich components and hydrocarbon generation characteristics of brown coal in Huangxian Basin. Brown coal maceral is given priority to the huminite, which are within the range of from 58.0% to 91.6%, the content of inertinite is from 0 to 16.0%, and the content of liptinite is from 2.0% to 18.8%. The hydrogen-rich maceral of brown coal mainly comes from the liptinite, and the main hydrocarbon-generating maceral in which are sporinite, resinite and liptodetrinite. Thermal simulation experiment shows that, with the simulation temperature increasing, the gaseous hydrocarbon conversion rate of brown coal is slow before 450 ℃ and fast after 450 ℃, and the liquid hydrocarbon conversion rate reachs the maximum at 440 ℃ (Ro=1.5%). The gaseous hydrocarbon conversion rate is lower than the one of liquid hydrocarbon before 470 ℃, and it is higher than the one of liquid hydrocarbon after 470 ℃.
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  • 发布日期:  2015-03-19

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