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September 12, 2025ProcessesOpen Access

Experimental Study on the Activation Energy of Coal Oxidation Under Different Oxygen Concentrations

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Experimental evaluation reveals that activation energy varies significantly with oxygen concentration, implying safety concerns for coal storage.

Activation energy increases from 12.98 kJ·mol−1 at 21% O2 to 25.11 kJ·mol−1 at 3% O2, indicating oxygen's critical role.
Critical temperatures mark the transition in the oxidation process, with significant differences in activation energy below and above those points.
Kinetic analyses were performed using the Arrhenius equation based on oxygen consumption rates at different oxygen levels.
Identifying a safety threshold of 6% O2 for goaf atmospheres provides essential guidance to mitigate the risk of coal spontaneous combustion.

Liu et al. (2025) studied this question.

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September 12, 2025ProcessesOpen Access

View Full Paper

Ask AI

Bookmark

Authors

Experimental evaluation reveals that activation energy varies significantly with oxygen concentration, implying safety concerns for coal storage.

Activation energy increases from 12.98 kJ·mol−1 at 21% O2 to 25.11 kJ·mol−1 at 3% O2, indicating oxygen's critical role.
Critical temperatures mark the transition in the oxidation process, with significant differences in activation energy below and above those points.
Kinetic analyses were performed using the Arrhenius equation based on oxygen consumption rates at different oxygen levels.
Identifying a safety threshold of 6% O2 for goaf atmospheres provides essential guidance to mitigate the risk of coal spontaneous combustion.

Liu et al. (2025) studied this question.

View Full Paper

Ask AI

Bookmark