煤矿安全2017，Vol.48Issue(6)：52-55,59,5.DOI:10.13347/j.cnki.mkaq.2017.06.014
不同粒度软煤与硬煤吸附性能差异性研究
Study on Difference of Gas Absorption Between Soft and Hard Coal with Different Grain Sizes
摘要
Abstract
In order to study the difference of gas absorption between soft coal and hard coal with different grain sizes,we use high-pressure volumetric method to measure different particle sizes of soft and hard coal adsorption capacity and adsorption constants and to fit the isothermal adsorption curve.The difference of adsorption performance between soft and hard coal was analyzed through simulation experiments.The study shows that with the decrease of the particle size,the adsorption constant of soft coal and hard coal both increases,the increasing trend decreases with the decrease of the particle size.The soft coal will has the maximum adsorption capacity when the particle size is less than 0.1 mm,but the hard coal produces the maximum adsorption capacity when the particle size is 0.20 mm to 0.25 mm.When the size is 1 mm to 3 mm,the adsorption isotherm curve of soft coal is always above hard coal.But the adsorption isotherms of hard coal and soft coal have a point of intersection,the adsorption amount of hard coal overtakes soft coal when the particle size is 0.20 mm to 0.25 mm and less than 0.1 mm.关键词
软硬煤屑/粒径/瓦斯吸附性能/孔隙结构/等温吸附Key words
soft and hard coal/particle size/gas absorption property/pore structure/isothermal adsorption分类
矿业与冶金引用本文复制引用
刘彦伟,潘保龙,张加琪,李亚鹏..不同粒度软煤与硬煤吸附性能差异性研究[J].煤矿安全,2017,48(6):52-55,59,5.基金项目
国家自然科学基金面上资助项目(51374095) （51374095）
省部共建国家重点实验室培育基地(河南理工大学)开放基金资助项目(WS2012B02) （河南理工大学）
河南理工大学博士基金资助项目(B2013-005) （B2013-005）
