The use of metal carbonates to intensify coal ignition and combustion is considered. To coal powder (<0.1 mm fraction), 5 wt % admixtures of Na₂CO₃, K₂CO₃, CaCO₃, MgCO₃, and CuCO₃ are introduced, by a mechanical method. The oxidation, ignition, and combustion of the mixtures is studied by thermal analysis and high-speed video recording in a combustion chamber with an atmospheric temperature of 700°C. The metal carbonates tend to increase the reactivity of the coal, as indicated by the increase in oxidation rate (established by thermal analysis), the heat liberation (according to differential scanning calorimetry), and the shorter delay in ignition and combustion (according to video data). The carbonates also result in more complete coal combustion and decrease the emissions of gaseous CO and NO_x. In the later stages, combustion of the modified samples is accompanied by periodic microexplosions. The change in coal reactivity is greatest in the case of copper carbonate.

考虑使用金属碳酸盐来强化煤的着火和燃烧。对于煤粉（<0.1 mm 部分），Na ₂ CO ₃、K ₂ CO ₃、CaCO ₃、MgCO ₃和 CuCO _{3的 5 wt% 混合物}通过机械方法引入。通过热分析和高速视频记录在大气温度为 700°C 的燃烧室中研究混合物的氧化、着火和燃烧。金属碳酸盐往往会增加煤的反应性，这可以通过增加氧化速率（通过热分析确定）、热量释放（根据差示扫描量热法）以及更短的点火和燃烧延迟（根据视频数据）。碳酸盐还导致更完全的煤燃烧并减少气态CO和NO _x的排放。在后期阶段，改性样品的燃烧伴随着周期性的微爆炸。在碳酸铜的情况下，煤反应性的变化最大。