摘要
为揭示煤和页岩吸附CO2气体的特性,在理论上分析了煤和页岩吸附CO2气体的机理和影响其吸附特性的重要因素,应用WY-98A型吸附常数测定仪对煤和页岩对CO2气体的吸附情况进行研究,通过分析实验数据总结煤和页岩样吸附CO2气体的特性,并分别分析了其对CO2气体吸附特性的变化规律,采取了4种经典的吸附模型模拟了煤和页岩对CO2气体的吸附情况,归纳出最佳的描述煤、页岩吸附CO2气体的模型;最后,详细计算了南阳坡和陈四楼以及红庙3个煤矿1 t煤和1 t页岩可吸附CO2的量。研究表明:Dubinin-Astakhov(D-A)方程更适合描述煤和页岩吸附CO2气体的行为。
For revealing the adsorption characteristics of coal and shale on CO2 , the main mechanism and influence factors of CO2 adsorption capacity was studied with theories. The paper studied coal and shale adsorbed CO2 gas phenomena by using WY -98A adsorption determinator systematically. Then the adsorption characteristics of CO2 had been obtained according to a large number of tests results, and different adsorption characteristics and change rules were analyzed. The absorption effect of the imitated coal and shale samples had been evaluated and a suitable model for describing the adsorption of CO2 about coal and shale were selected. Finally, the adsorbed amount of CO2 for 1 t coal and 1 t shale were calculated in Nanyangpo, Chensilou and Hongmiao mining areas. It is better to describe the CO2 adsorption about coal and shale by Dubinin -Astakhov（ D -A）.
出处
《煤矿安全》
CAS
北大核心
2013年第11期15-17,21,共4页
Safety in Coal Mines
关键词
煤
页岩
CO2
吸附特性
吸附模型
吸附等温线
coal
shale
carbon dioxide
adsorption characteristic
adsorption model
adsorption isotherm
