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中煤级煤吸附甲烷的物理模拟与数值模拟研究
引用本文:傅雪海,秦勇,权彪,范炳恒,王可新.中煤级煤吸附甲烷的物理模拟与数值模拟研究[J].地质学报,2008,82(10):1368-1371.
作者姓名:傅雪海  秦勇  权彪  范炳恒  王可新
作者单位:中国矿业大学资源与地球科学学院,江苏徐州,221008
基金项目:国家“973”项目(编号2002CB200211700)、国家自然科学基金重点项目(编号40730422)与面上项目(编号40572095)、国家“863”项目(编号2006AA06Z231)资助成果。
摘    要:基于184个中煤级(镜质组最大反射率Ro,max介于0.65%~2.50%)煤在平衡水条件下的等温吸附实验成果,模拟了中煤级煤的朗格缪尔体积和压力与煤级的关系,建立了不同埋深(温度、压力)条件下不同煤级煤饱和吸附气量量板,探讨了压力和温度对中煤级煤吸附甲烷能力的综合效应,对比分析了中煤级煤吸附特征与低、高煤级煤的差异,提出了中煤级煤吸附气量预测的方法。

关 键 词:中煤级煤  吸附甲烷  温度效应  模拟
收稿时间:5/7/2008 12:00:00 AM
修稿时间:2008/7/26 0:00:00

Study of Physical and Numerical Simulations of Adsorption Methane Content on Middle rank Coal
FU Xuehai,QIN Yong,QUAN Biao,FAN Bingheng and WANG Kexin.Study of Physical and Numerical Simulations of Adsorption Methane Content on Middle rank Coal[J].Acta Geologica Sinica,2008,82(10):1368-1371.
Authors:FU Xuehai  QIN Yong  QUAN Biao  FAN Bingheng and WANG Kexin
Institution:School of Mineral Resources and Geoscience, China University of Mining & Technology, Xuzhou, Jiangsu, 221015
Abstract:Based on the results of isothermal adsorption experiments on 184 middle-rank coal samples under equilibrium moistures(with vitrinite reflectances of between 0.65% and 2.50%),this study simulates the relationship between Langmuir volume and Langmuir pressure in the middle-rank coal;establishes the master curve of saturated adsorption methane content of different coal rank under various buried depths(temperature and pressure);discusses the integrated effect of middle-rank coal adsorption and the difference of isothermal adsorption characteristics between middle-rank and low,high rank coals.In the end,this study proposes a prediction method for adsorption methane content of middle-rank coal.
Keywords:middle-rank coal  adsorption methane content  temperature effect  simulation
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