摘要
为研究Fenton试剂作用下煤的渗透规律及增透机理,对焦作煤业(集团)有限责任公司九里山煤矿的无烟煤、安阳市主焦煤业有限责任公司的焦煤、义马煤业集团股份有限公司杨村煤矿的长焰煤等3种不同煤阶的煤样,利用Fenton试剂进行加压饱和浸泡试验,研究其渗透率变化情况,并通过对比试验前后各煤样核磁共振T_2谱和红外光谱,分析探讨了Fenton试剂作用下煤样的增透机理。结果表明:Fenton试剂作用后,煤样中大孔和裂隙体积增大,内部连通性变好; Fenton试剂作用后,煤样表面含氧官能团增加,抑制了煤对瓦斯的吸附能力;通过3种煤样的对比试验发现,Fenton试剂作用对低阶煤煤样有较好的增透效果。研究结果可为提高煤层的透气性提供新的方法和理论指导。
In order to study the penetration law and the mechanism of increase permeability of the coal under the action of Fenton reagent,three coal samples of different coal ranks,including anthracite coal from Jiulishan coal mine in Jiaozuo coal group Co.,Ltd.,coking coal from Zhujiao coal mine Co.,Ltd.,in Anyang city,and long flame coal from the Yangcun coal mine in Yima coal group Co.,Ltd.,were selected,and the changes of permeability after the samples being subjected to pressure saturated soaking treatment with Fenton reagent were studied.At the same time,the comparison of T2 spectra and infrared spectra of coal samples before and after their treated by Fenton reagent was conducted to investigate the mechanism of increase permeability.The results showed that:Fenton reagent led to increase the volume of macropores and fissures in the coal sample,and internal connectivity in the coal sample became better.The increase of oxygen-containing functional groups on the coal surface with Fenton reagent inhibited the adsorption capacity of coal on methane.Through the comparative experiments of three kinds of coal samples,it was proved that Fenton reagent had a good increase permeability effect on low-rank coal samples.The conclusions provided a new method and theoretical guidance for improving the permeability of coal seam.
作者
温志辉
段昕均
WEN Zhihui;DUAN Xinjun(Key Laboratory of Gas Geology and Gas Control(State Key Laboratory Cultivation Base for Gas Geology and Gas Control),Jiaozuo 454000,Henan,China;School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China;Collaborative Innovation Center of Coal Work Safety Henan Province,Jiaozuo 454000,Henan,China)
出处
《河南理工大学学报（自然科学版）》
CAS
北大核心
2019年第2期1-7,共7页
Journal of Henan Polytechnic University（Natural Science）
基金
国家重点研发计划项目(2017YFC0804207)
国家自然科学基金资助项目(51404100
51574112)
教育部创新团队发展计划项目(IRT_16R22)
关键词
FENTON试剂
煤
渗透规律
增透机理
Fenton reagent
coal
penetration law
mechanism of increase permeability
