Reactivity of semifusinite and fusinite in the view of micro-Raman spectroscopy examination
Reactivity of semifusinite and fusinite in the view of micro-Raman spectroscopy examination
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DOI：
10.1016/j.coal.2011.10.005
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发表时间：
2011-12
影响因子：
5.6
通讯作者：
R. Morga
中科院分区：
文献类型：
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作者：
R. Morga
对从波兰上西里西亚煤盆地的19个烟煤（主要是炼焦煤）样品（Rr=0.87-1.42%）制备的惰质组浓缩物进行了研究。在所有检查的样品中，总半丝质体与丝质体在平均值方面存在差异，D1和D4带位置的频率较高，D3带位置的频率较低，G带FWHM较高，AD 3/AAL和AD 4/AALL比（其中AALL是指所有拉曼光谱带的表面），以及较低的D1带FWHM、ID 1/IG和AD 1/AALL比。拉曼带。反应性和非反应性半丝质体之间存在类似的差异。共格畴直径（La）的大小顺序为：反应性半丝质体<非反应性半丝质体<丝质体。AD 3 +D4/AALL比值反映了烟煤中惰质组的反应活性，并随半丝质体和丝质体平均反射率（Rr）的增大而减小。利用AD_3 + D_4/AALL、ID_1/IG和AD_1/AALL比值或D_3带位置，可以解释划分来自不同煤的总半丝质体和丝质体的阈值。研究结果表明，术语“半丝质体”应仅包括反应性和半反应性组分。非活性半丝质体应视为丝质体。烟煤中的半丝质体（Rr = 0.9-1.4%），按建议的方法定义，其特征是AD 3 +D4/AALL比值≥0.35，或ID 1/IG比值≤1.03。
The study was performed on inertinite concentrates prepared from 19 samples of bituminous, mostly coking, coal (Rr=0.87–1.42%) from the Upper Silesian Coal Basin of Poland. In all examined samples, total semifusinite differs from fusinite, in terms of mean values, by higher frequencies of the D1 and D4 band position and lower frequency of the D3 band position, higher G band FWHM, the AD3/AALLand AD4/AALLratios (where AALLmeans the surface of all the Raman bands), and lower D1 band FWHM, the ID1/IGand AD1/AALLratios. Similar differences exist between reactive and non-reactive semifusinites. The diameter of coherent domains (La) increases in the following sequence: reactive semifusinite<non-reactive semifusinite<fusinite. The AD3+D4/AALLratio reflects inertinite reactivity in bituminous coals, and decreases with the increase of mean reflectance (Rr) of semifusinite and fusinite. Using the AD3+D4/AALL, ID1/IGand AD1/AALLratios or the D3 band position it is possible to interpret thresholds dividing, in terms of mean values, total semifusinite and fusinite, coming from different coals. The results of the study suggest that the term “semifusinite” should only comprise reactive and semi-reactive components. Non-reactive semifusinite should be considered fusinite. Semifusinite from bituminous coals (of Rr≈0.9–1.4%), defined in the proposed way, would be characterized by the AD3+D4/AALLratio ≥0.35, or the ID1/IGratio ≤1.03.