低温下温度对无烟煤瓦斯吸附能力的影响  

Influence in Environment of Low Temperature to Adsorption Capacity of Anthracite Coal

作　　者：谢策[1] 王兆丰[1,2] 康博[1] 

机构地区：[1]河南理工大学安全学院,河南焦作454000 [2]河南理工大学河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地,河南焦作454000

出　　处：《煤炭技术》2015年第4期164-166,共3页Coal Technology

基　　金：国家自然科学基金(51274090);河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地开放课题(WS2012B01)

摘　　要：井下直接测定煤层瓦斯含量时,常出现煤样温度过高、瓦斯放散量过多导致损失量的推算不准确,使煤层瓦斯含量的测值出现偏差。基于0℃以上的常温时煤对瓦斯的吸附能力随温度降低而增强的性质,提出冷冻取煤样方法,减少吸附瓦斯的损失量,使瓦斯含量的测值更准确。通过实验探究了低温下温度对煤的瓦斯吸附能力的影响,从理论上证明该方法可行。During the determination of gas content in coal seam underground, the high temperature of the coal sample and excessive gas emission volume often cause coal seam gas content determination value deviation due to the inaccurate projection amount of loss. Based on the character that the gas adsorption capacity increases as the temperature decreases at room temperature(0℃ above), freezing coal sampling is proposed to improve the accuracy of the gas content of the determination value. The impact on gas adsorption capacity at low temperature by testing is explored,theoretically proved the feasibility of freezing coal sampling method.

关 键 词：低温 微孔填充 吸附势 热力学 

分 类 号：TD712[矿业工程—矿井通风与安全]