SPONTANEOUS COMBUSTION OF COAL - A MOSSBAUER APPROACH

被引:2
|
作者
SHRIVASTAVA, KL [1 ]
TRIPATHI, RP [1 ]
JANGID, ML [1 ]
机构
[1] UNIV JODHPUR,DEPT PHYS,JODHPUR 342001,RAJASTHAN,INDIA
关键词
MOSSBAUER SPECTROSCOPY; OXIDATION OF COAL; STRUCTURAL PARAMETERS;
D O I
10.1016/0016-2361(92)90025-J
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A Fe-57 Mossbauer spectroscopic study was carried out at 300 K to study the self-combustion of coal. Hyperfine parameters such as isomer shift, quadrupole splitting and the total internal magnetic field of Fe-57 nuclei were used to identify various iron-bearing species during different stages of the process. Oxide and oxyhydroxide phases were present in all the samples, suggesting a crucial role of oxidation and weathering in the spontaneous combustion of coal.
引用
收藏
页码:377 / 380
页数:4
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