Thermogravimetric Study of Coal Vitrinites at Different Metamorphic Stages in the Oxidizing Medium
N. I. FEDOROVA1, L. M. KHITSOVA1, Z. R. ISMAGILOV1,2
1Federal Research Center of Coal and Coal Chemistry, SB RAS, Kemerovo, Russia
2Boreskov Institute of Catalysis, SB RAS, Novosibirsk, Russia
Keywords: каменные угли, витринит, стадии метаморфизма, термогравиметрический анализ, температура возгорания, bituminous coal, vitrinite, stages metamorphism, thermogravimetric analysis, ignition temperature
Pages: 200-207
Abstract
A thermogravimetric study of vitrinites of bituminous coals of different metamorphic stages was carried out in the oxidizing medium. It was demonstrated that with increasing the metamorphic grade of vitrinites, the temperature range of the oxidation process rose, while the maximum decomposition rates were shifted to higher temperature region. A strong correlation of the ignition temperature of vitrinites and organic (Сdaf) and aromatic (Сar) carbon content therein, and also of vitrinite reflectance values (Ro,r) and volatile matter yield (Vdaf) was revealed.
DOI: 10.15372/CSD20180213
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