Characteristics of coal re-oxidation based on microstructural and spectral observation
查看参考文献22篇
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文摘
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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. |
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来源
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International Journal of Mining Science and Technology
,2015,25(5):749-754 【核心库】
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DOI
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10.1016/j.ijmst.2015.07.008
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关键词
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Spontaneous combustion of coal
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Re-oxidation
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Oxidation characteristics
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Microstructure
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Infrared spectrum
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地址
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1.
School of Safety Engineering, China University of Mining & Technology, State Key Laboratory of Coal Mine Safety Technology, Xuzhou, 221116
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China Coal Technology & Engineering Group of Shenyang Research Institute, State Key Laboratory of Coal Mine Safety Technology, Shenyang, 110016
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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2095-2686 |
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学科
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化学;化学工业 |
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基金
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the National Key Foundation for Exploring Scientific Instruments of China
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国家自然科学基金
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the special fund for Scientific Research Institutes of China
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CCTEG Innovation Foundation of China
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Shenhua Innovation Foundation of China
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文献收藏号
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CSCD:5536733
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