The capacity of coal to adsorb methane is greatly affected by temperature and, in recent years, temperature-dependent adsorption has been studied by many researchers. Even so, comprehensive conclusions have not been reached and conflicting experimental results are common. This paper reviews the current state of research regarding the temperature-dependent adsorption of methane in coal and catalogs the conclusions from experiments conducted on that subject by 28 researchers, as published between 1995 and 2017. Probability theory and statistics are used to show that the conclusion generally accepted by most researchers is that the amount of methane adsorbed by coal decreases with increasing temperature. It is highly likely that the Langmuir volume decreases as the temperature rises, and it is also probable that the Langmuir pressure increases at higher temperatures. Equations are presented that express the relationships between methane adsorption, Langmuir volume, Langmuir pressure, and temperature. Future research should be directed toward determining the relationship between Langmuir pressure and temperature. The results of the study presented herein provide a theoretical basis for predicting the gas content in coal seams and improving the efficiency of coalbed methane development.

中文翻译：

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温度对煤中甲烷吸附的影响：综述与统计分析

煤吸附甲烷的能力受温度影响很大，近年来，许多研究人员研究了温度依赖性吸附。即便如此，还没有得出全面的结论，相互矛盾的实验结果很常见。本文回顾了煤中甲烷随温度吸附的研究现状，并对 1995 年至 2017 年间发表的 28 位研究人员在该主题上进行的实验得出的结论进行了编目。概率论和统计数据用于表明该结论大多数研究人员普遍接受的是，煤吸附的甲烷量随着温度的升高而减少。朗缪尔体积很可能随着温度升高而减小，并且朗缪尔压力也可能在较高温度下增加。给出了表达甲烷吸附、朗缪尔体积、朗缪尔压力和温度之间关系的方程。未来的研究应致力于确定朗缪尔压力与温度之间的关系。研究结果为预测煤层瓦斯含量和提高煤层气开发效率提供了理论依据。