开滦煤显微组分结构特征与吸附CO的关系  

Relationship between structural property of macerals and carbon monoxide absorption of kuailuan coals

作　　者：王月红[1] 郭立稳[2] 张九零[1] 段海强[1] 

机构地区：[1]中国矿业大学资源与安全工程学院,北京100083 [2]河北理工大学资源与环境学院,河北唐山063009

出　　处：《辽宁工程技术大学学报（自然科学版）》2010年第3期373-376,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：国家自然科学基金资助项目(50474080);教育部留学回国人员科研启动基金

摘　　要：为了研究开滦煤中显微组分(惰质组和镜质组)的微观结构和分子特征,利用离心分离技术,得到纯度较高的富镜质组和富惰质组煤样,并对其进行煤质分析、煤岩分析、孔径分布以及红外光谱分析,得出开滦煤中惰质组含量较高,孔隙结构发育,主要以过渡孔和微孔为主,占煤的总孔隙体积数的90%以上,对煤样吸附CO起主导作用;同时氧含量较高,其中含氧官能团羟基(—OH),尤其是酚羟基对煤吸附CO有较大影响,成功的解释了开滦煤层发生CO体积分数长期超标但未曾自燃的现象,The maceral microstructure and molecular constitution of inertinite and vitrinite is studied which are separated from kailuan coal by centrifugal separation technology for getting high-purity vitrinite and inertinite-rich coal samples.It＇s found that the Kailuan Coal＇s inertinite is higher,and the pore structure is richer through analyzing its quality,petrography and micropore size distribution,as well as FTIR,which play a dominant role in adsorbing CO,the most pore is transition pore and microporous,accounting for more than 90% of the total volume.At the same time,the oxygen content is higher,the hydroxy（-OH） of oxygen-containing functional groups has considerable effect on CO adsorption,especially phenolic hydroxyl group.It gives a successful explanation of phenomenon which CO concentration exceeds the stipulated standards in long-term,but no spontaneous combustion in Kailuan Coal.

关 键 词：显微组分 CO 孔径分布 红外光谱 官能团 

分 类 号：TD163[矿业工程—矿山地质测量]