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Chemistry for Sustainable Development

2011 year, number 4

Reactivity of Coal of Different Stages of Metamorphism
in the Processes of Thermooxidative Destruction

T. S. YUSUPOV1, L. G. SHUMSKAYA1, A. P. BURDUKOV2 and V. A. LOGVINENKO3
1 Institute of Geology and Mineralogy, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Koptyuga 3, Novosibirsk 630090 (Russia)
2 Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 1, Novosibirsk 630090 (Russia)
3 Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 3, Novosibirsk 630090 (Russia)
yusupov@uiggm.nsc.ru
Keywords: coal, long-flame, lean, thermooxidative destruction, mechanical activation
Pages: 389–394

Abstract

Changes of the reactivity of mechanically activated coal from different stages of metamorphism in the processes of thermooxidative destruction were studied by means of thermal analysis. Thermogravimetric curves recorded at different heating rates were processed using the Model Free computer software. It was demonstrated that the intense mechanical treatment of coal at different stages of metamorphism long-flame and lean) causes an increase in the reactivity of coal, which is exhibited as a decrease in the activation energy over the whole temperature range of thermooxidative destruction. It was established that the most reactive coal towards combustion in the air environment among the studied kinds is mechanically activated low-metamorphosed long-flame coal.