| Characteristics of coal re-oxidation based on microstructural and spectral observation | |
| Alternative Title | Characteristics of coal re-oxidation based on microstructural and spectral observation |
| Liang Yuntao1; Tian Fuchao1; Luo Haizhu2; Tang Hui2 | |
| 2015 | |
| Source Publication | International Journal of Mining Science and Technology
 |
| ISSN | 2095-2686 |
| Volume | 25Issue:5Pages:749-754 |
| Abstract | 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. |
| Other Abstract | 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. |
| Keyword | Spontaneous combustion of coal Re-oxidation Oxidation characteristics Microstructure Infrared spectrum |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:5536733 |
| Citation statistics |
Cited Times:5[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/155531 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国矿业大学 2.中国科学院金属研究所 |
| Recommended Citation 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. |
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