Characteristics of coal re-oxidation based on microstructural and spectral observation

IMR OpenIR

	Characteristics of coal re-oxidation based on microstructural and spectral observation
其他题名	Characteristics of coal re-oxidation based on microstructural and spectral observation
	Liang Yuntao 1; Tian Fuchao 1; Luo Haizhu 2; Tang Hui 2
	2015
发表期刊	International Journal of Mining Science and Technology
ISSN	2095-2686
卷号	25 期号:5 页码:749-754
摘要	In order to investigate the characteristics of re-oxidation of residual coal in goafs in close coal seam mining, scanning electron microscope and infrared spectrometer are used to study the changes of coal microstructure and chemical reaction of functional groups of eight coal samples at different ranks. Result shows that after initial oxidation, the surface morphology of pore are different, and the porosity of coal is increased and the oxygen adsorption capacity of coal is improved. The change of coal molecular structure and presence of a large amount of active oxygen-containing functional groups lead to increasing tendency of coal to further oxidation. In addition, the higher lever of the initial oxidation is, the easier the re-oxidation occurs.
其他摘要	In order to investigate the characteristics of re-oxidation of residual coal in goafs in close coal seam mining, scanning electron microscope and infrared spectrometer are used to study the changes of coal microstructure and chemical reaction of functional groups of eight coal samples at different ranks. Result shows that after initial oxidation, the surface morphology of pore are different, and the porosity of coal is increased and the oxygen adsorption capacity of coal is improved. The change of coal molecular structure and presence of a large amount of active oxygen-containing functional groups lead to increasing tendency of coal to further oxidation. In addition, the higher lever of the initial oxidation is, the easier the re-oxidation occurs.
关键词	Spontaneous combustion of coal Re-oxidation Oxidation characteristics Microstructure Infrared spectrum
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:5536733
引用统计	被引频次：13[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/155531
专题	中国科学院金属研究所
作者单位	1.中国矿业大学 2.中国科学院金属研究所
推荐引用方式 GB/T 7714	Liang Yuntao,Tian Fuchao,Luo Haizhu,et al. Characteristics of coal re-oxidation based on microstructural and spectral observation[J]. International Journal of Mining Science and Technology,2015,25(5):749-754.
APA	Liang Yuntao,Tian Fuchao,Luo Haizhu,&Tang Hui.(2015).Characteristics of coal re-oxidation based on microstructural and spectral observation.International Journal of Mining Science and Technology,25(5),749-754.
MLA	Liang Yuntao,et al."Characteristics of coal re-oxidation based on microstructural and spectral observation".International Journal of Mining Science and Technology 25.5(2015):749-754.