摘要
近年来,随着对煤与气体关系的深入研究,发现煤层中不仅含有CH4还含有CO。通过对不同温度压力下煤吸附CO的实验分析,发现温度增加煤对CO的物理吸附量增加,压力增加煤对CO的物理和化学吸附量均增加;低变质和高变质程度煤对CO物理吸附量比较大。在煤、温度、压力三者耦合作用下,开采过程中煤层CO向外扩散量少,而采空区中CO浓度大。
In recent years, with the deepening research of coal and gases, it is found that CO is also contained besides CH, in coal seam. Through series of CO adsorption experiments under different temperature and pressure about coal, it is found that CO physical adsorption amount is increased with the increase of temper.ature, and the amount physical CO and chemical adsorption is increased with the increase of pres- sure. The adsorption of low metamorphic coal and high metamorphic coal of CO physical is larger. Due to the interaction among coal, temperature and pressure, the diffusion amount of CO is less, and the concen- tration of CO in mined-out area is larger.
作者
齐艺裴
李孟倩
许慎
刘康
QI Yi-pei LI Meng-qian XU Shen LIU Kang(College of Mining Engineering, North China University of Science and Technology, Tangshan Hebei 063009, Chin)
出处
《华北理工大学学报（自然科学版）》
CAS
2017年第1期24-28,共5页
Journal of North China University of Science and Technology：Natural Science Edition
基金
国家自然科学基金(51474086)
河北省自然科学基金(E2014209138)
国家级大学生创新创业训练计划项目(X2016002)
校级大学生创新创业训练计划项目(X2016223)
关键词
煤
物理吸附
化学吸附
coal
CO
physical adsorption
chemical adsorption
