混合煤样最大热解峰温与镜质体反射率的研究

孙立中; 李显宗; 蔡龙珆

doi:10.11781/sysydz200703298

混合煤样最大热解峰温与镜质体反射率的研究

doi: 10.11781/sysydz200703298

1.
南开技术学院, 电机工程系, 台湾, 南投
2. 台湾中央大学, 地球物理研究所, 台湾, 中坜
3. 台湾中央大学, 应用地质研究所, 台湾, 中坜

详细信息

作者简介:
孙立中(1962- ),男(汉族),博士,主要从事煤岩学方面的研究工作.

中图分类号: TE122.11
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- 被引次数: 0
出版历程
- 收稿日期: 2007-01-23
- 修回日期: 2007-05-14
- 刊出日期: 2007-05-28

A STUDY OF THE PYROLYSIS PARAMETER T_max AND VITRINITE REFLECTANCE FROM MIXED COAL SAMPLES

1.
Department of Electric Engineering, Nankai College, Nantou, Taiwan, China
2. Institute of Geophysics, National Central University, Zhongli, Taiwan, China
3. Institute of Applied Geology, National Central University, Zhongli, Taiwan, China

摘要

摘要: 利用中国大陆地区两个高、低成熟度煤样,模拟再沉积物质来探讨其最大热解峰温(T_max)的变化与其镜质体反射率(R_o)的对应关系。对依比例混合后的混合样进行热解分析,再将量测两煤样的镜质体反射率的资料点,以相同的比例用随机取样的方式将其混合后取平均值,以对应其T_max的结果。实验结果显示:1)低成熟度煤样,在混有不同比例高成熟度煤样时,其T_max值将反应低成熟度之情形,即取含有再沉积的岩层样品,其T_max将呈现年轻地层的成熟度。2)对高成熟度的物质采样或进行热解分析的过程中,即便是在极微量的情况下,亦应避免受低成熟度物质的污染。3)随着低成熟度煤样配比的增加,T_max迅速下降,其与R_o的关系与Ⅲ型干酪根的线性对应呈现明显差异。
- 再沉积 /
- 热解分析 /
- 最大热解峰温 /
- 镜质体反射率
Abstract: Reworked sedimentary materials were simulated by mixing of high and low rank coals in various proportions,so as to evaluate the variation of T_max from Rock-Eval pyrolysis.The results indicate that(1) once the low rank coal is mixed with high rank coal,the T_max is close to that of the low rank coal,whatever the mixing ratio is;(2) care must be taken for reworked samples,especially for organic materials with high maturity,even dealing with a very small amount of sample mixing;(3) Because of the fast dropping of T_max after increasing mixed ratio of low rank coal,the correlation of R_o and T_max is quite different from the linear trend possessed by type-Ⅲ kerogen.
- reworked /
- Rock-Eval pyrolysis /
- T_max /
- vitrinite reflectance

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参考文献(12)

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