3. Coal storage and preservation problems
3.1 Oxidation phenomenon
Oxidation is a slow phenomenon that affects all solid fuels as soon as their surface is exposed to air.
At room temperature, a coal exposed to air binds oxygen more or less rapidly, releasing carbon monoxide, carbon dioxide and water vapor. The most oxygen-rich coals are the most oxidizable. The reaction of oxygen on coal, below the combustion threshold, is "exothermic" and produces heat.
When the heat produced cannot be completely dissipated, spontaneous self-heating occurs (figure 3 ). In addition to...
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Coal storage and preservation problems
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