煤矿安全2019，Vol.50Issue(2)：1-5,5.DOI:10.13347/j.cnki.mkaq.2019.02.001
高温高压下瓦斯在煤体内表面吸附力变化研究
Study on Gas Adsorption Capacity on Coal Surface Under High Temperature and Pressure
侯程 1张英华 1朱传杰2
作者信息
- 1. 北京科技大学 金属矿山高效开采与安全教育部重点实验室,北京 100083
- 2. 中国矿业大学 安全工程学院,江苏 徐州 221116
- 折叠
摘要
Abstract
The adsorption laws of gas on the surface of three kinds of coal samples under high temperature and pressure were studied experimentally. Research shows that the gas adsorption under high temperature and pressure could be described by Langmuir model. At the same pressure condition, the gas adsorption capacity decreases with the increase of temperature. The gas saturated adsorption capacity decreases with the increase of temperature, the Langmuir adsorption pressure of the coal samples with high degree of metamorphism decreases faster with the increase of temperature than that of the other two coal samples. In addition, the saturated adsorption amount of gas at different temperature increases with the increase of fixed carbon content. At 25, 40, 80℃, the saturated adsorption decreases with the increase of volatile matter content, but at 120 ℃, it first decreases and then increases.关键词
高温高压/瓦斯吸附能力/瓦斯抽采/朗格缪尔模型/孔隙结构Key words
high temperature and pressure/gas adsorption capacity/gas drainage/Langmuir model/pore structure分类
矿业与冶金引用本文复制引用
侯程,张英华,朱传杰..高温高压下瓦斯在煤体内表面吸附力变化研究[J].煤矿安全,2019,50(2):1-5,5.
