煤矿安全2019，Vol.50Issue(3)：1-4,8,5.DOI:10.13347/j.cnki.mkaq.2019.03.001
构造煤纳米级孔隙对瓦斯吸附能力的影响研究
Study on Influence of Nanoscale Pores of Tectonic Coal on Gas Adsorption Capacity
摘要
Abstract
In order to study the influence of nanoscale pore(＜100 nm) on gas adsorption capacity, the pore structure of raw coal and structural coal of three different coal samples was studied. Moreover, a temperature-pressure comprehensive adsorption model was established to analyze the gas adsorption capacity of coal. The results show that nanoscale pore(pore diameter less than 100 nm) is the decisive factor of gas adsorption strength of coal, and the specific surface area of nanoscale pore is the main factor affecting gas adsorption; under the same temperature and pressure, the adsorption capacity of Guhanshan Mine was 1.3 to 1.8 times that of Xuehu Mine and 1.02 to 1.2 times that of Pingdingshan Mine; there was a significant positive correlation between the pore capacity and gas adsorption capacity. It is feasible to predict gas adsorption capacity by establishing temperature-pressure model.关键词
构造煤/纳米级孔隙/低温液氮/瓦斯吸附能力/吸附模型Key words
tectonic coal/nanoscale pore/low temperature liquid nitrogen/gas adsorption capacity/adsorption model分类
矿业与冶金引用本文复制引用
陈卓,雷东记,张玉贵..构造煤纳米级孔隙对瓦斯吸附能力的影响研究[J].煤矿安全,2019,50(3):1-4,8,5.基金项目
国家自然科学基金资助项目(51574280,51774319) （51574280,51774319）
