Abstract
ABSTRACT The present study tests the low-temperature oxidation characteristics of coal with different gas contents through the temperature-programmed experiment system. On the basis of the experimental data, the crossing-point temperature (CPT), law of coal heating, and coal consumption in the experimental process are obtained. Then, the energy conservation formula and coal oxygen kinetics formula of the low-temperature coal oxidation process are established, and the apparent activation energy and the reaction enthalpy of O2 for coal with different gas contents are calculated. Results show that when the gas content of coal increases, the CPT increases, the apparent activation energy increases, and the reaction enthalpy of O2 decreases.
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