天然气地球科学 ›› 2011, Vol. 22 ›› Issue (1): 144–148.doi: 10.11764/j.issn.1672-1926.2011.01.144

• 天然气地球化学 • 上一篇    下一篇

两种热模拟体系下热解产物的相关性研究

邱军利, 夏燕青, 雷天柱   

  1. 1.中国科学院油气资源研究重点实验室,甘肃 兰州 730000;
    2.中国科学院研究生院,北京 100039
  • 收稿日期:2010-04-02 修回日期:2010-12-01 出版日期:2011-02-10 发布日期:2011-02-10
  • 通讯作者: 邱军利qiukangjun@163.com E-mail:qiukangjun@163.com
  • 作者简介:邱军利(1975-),男,河南焦作人,助理研究员,主要从事油气地球化学方面的研究.
  • 基金资助:

    国家科技重大专项大型油气田及煤层气开发项目(编号:2008ZX05008-002-022);中国科学院西部博士项目联合资助.

Correlation Study of Pyrolysis Product between Two Different Thermal Simulation Systems

QIU Jun-Li, XIA Yan-Qing, LEI Tian-Zhu   

  1. 1.Key Laboratory of Petroleum Resources Research,Institute of Geology and Geophysics,Chinese Academy of
    Sciences,Lanzhou 730000,China 2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China
  • Received:2010-04-02 Revised:2010-12-01 Online:2011-02-10 Published:2011-02-10

摘要:

对南宁褐煤在封闭体系和开放体系下开展了热模拟实验,并对其在2种热模拟体系下的氢气、气态烃和液态烃产率的演化特征以及相互关系进行了研究。结果表明,在煤岩热解生烃过程中,封闭体系下液态烃出现的温度区间为250~600℃,开放体系下液态烃出现的温度区间为250~550℃。通过氢气、气态烃和液态烃产率的对比分析,发现液态烃是影响有机质发生缩聚反应的主要因素。2种热模拟体系下,氢气和气态烃产率分别与液态烃产率呈负相关关系,而氢气和气态烃产率呈正相关关系,且三者的总演化趋势相同,说明有机质演化是一个稳定的过程,和自身化学键的键能密切相关。在高温阶段,2种热模拟体系下的气态烃产率基本相同,因此在计算生气量时,产气率数据的选择要考虑演化程度的影响。

关键词: 热模拟实验, 开放体系, 封闭体系, 资源量计算

Abstract:

By taking pyrolysis experiments in closed and open systems,the relationship and evolution of hydrocarbon products for Nanning lignite have been studied.The results show that in the closed system,the temperature range that liquid hydrocarbon exists is from 250℃ to 600℃,and it is from 250℃ to 550℃ for the open system.By comparing production rate of hydrogen,gaseous hydrocarbons and liquid hydrocarbon,we discovered that liquid hydrocarbon is the major factor affecting polycondensation of organic matter.In the two systems,there is a negative correlation between the production rate of hydrogen and liquid hydrocarbon,gaseous hydrocarbons and liquid hydrocarbon.But the production rate of hydrogen and gaseous hydrocarbons has a positive correlation.This shows that organic evolution is a stable process affected by the bond energy of chemical bonds and not related with experimental methods and processes.In the high temperature stage,the production rate of gaseous hydrocarbons is almost equal under the open and closed systems.Therefore,when calculating the gas volume,the evolution degree should be taken into account in choosing gas production rate. 

Key words: Simulation, Open system, Closed system, Resource calculation

中图分类号: 

  • TE122.1+13

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