摘要
以贵州官仓煤矿C4煤层为煤样,进行30、40、50℃下的吸附实验,并采用吸附势理论和吸附热理论对40℃和50℃煤的等温吸附曲线进行预测,对比得出预测精度较高者。研究结果表明,吸附势理论和吸附热理论在预测等温吸附曲线时都具有较高的预测精度,前者的预测精度比后者的高,前者的误差分布优于后者的;随着预测压力的增大,吸附势理论预测的相对误差逐渐减小,吸附热理论预测的相对误差先减小后增大呈"U"型,并在4.5 MPa左右达到最小。
Taking C4 coal seam of Guancang Coal Mine in Guizhou as a sample,the adsorption experiments were carried out at 30 ℃,40 ℃ and 50 ℃,and the adsorption potential theory and adsorption heat theory were used to predict the isothermal adsorption curve of coal at 40 ℃ and 50 ℃,and the higher prediction accuracy was obtained. The research results show that the adsorption potential theory and adsorption thermal theory can get high prediction accuracy. The former is better than the latter,the error distribution of the former is better than that of the latter. With the increase of pressure,the relative error of the adsorption potential theory decreases gradually. The relative error of the adsorption thermal theory decreases and then increases with the ＂ U＂ type,and the minimum is at about 4. 5 MPa.
出处
《煤矿安全》
CAS
北大核心
2016年第10期13-16,共4页
Safety in Coal Mines
基金
中央高校基本科研业务费资助项目(106112015CDJZR245520)
关键词
煤
温度
吸附势理论
吸附热理论
等温吸附曲线
coal
temperature
adsorption potential theory
adsorption heat theory
isothermal adsorption curve
