Authors: V.A. Portola, V.I. Khramtsov, V.A. Shcherbakova, Bobrovnikova

Title of the article: The effect of chemical activity of coal on emission of gases at low-temperature oxidation

Year: 2017, Issue: 5, Pages: 63-67

Branch of knowledge: Earth sciences

Index UDK: 622.814

DOI: 10.26730/1999-4125-2017-5-63-67

Abstract: Studies of evolution of gases from coal at the stage of low-temperature oxidation of coal have been carried out. In the experiments, samples of coal from various seams of coal operations in Kuzbass, which have different chemical activity with respect to oxygen, were used. Dependences of the change in the release of carbon monoxide, carbon dioxide and ethylene on the constant of the rate of oxygen sorption by coal are obtained. It was established that the emission of these gases during low-temperature oxidation increases with the increase in the chemical activity of the coal. Hydrogen, methane, ethane, propane and propylene are emitted in a wide range and their concentration does not depend on the oxygen sorption rate constant at low-temperature oxida-tion of coal.

Key words: Coal chemical activity of coal the evolution of gases low-temperature oxidation of coal rate constant of oxygen sorption by coal and self-heating of coal

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