To investigate the effects of ionic liquids (ILs) on the oxidative combustion characteristics of coal, the oxidation characteristics of ILs on coal, such as characteristic temperature, thermal mass loss rate, and oxidation kinetics characteristic parameters, were determined. The results the [BMIm][I]-treated coal samples increased cracking temperature (T₁), maximum oxidization mass gain (T₂), ignition temperature (T₃), burnout temperature (T₄), minimum thermal rate (T_a), maximum thermal energy (T_b), and maximum thermal rate (T_c) by 33.2, 29.3, 20.7, 42.8, 11.4, 23.0, and 27.9 °C, respectively. The increase mass ratio of coal samples treated with ILs increased and decreased at the water evaporation and thermal decomposition stages, respectively. The apparent activation energy (E_a) of coal samples treated with ILs increased, and the mechanism function also changed accordingly. These showed that the ILs improved the thermal stability of the coal samples in the stages of absorbing oxygen and increased mass, and the loss of combustion. The ILs caused damage to the molecular structure of the coal and ultimately effected changes in the combustion performance. In addition, the [BMIm][BF₄] hardly weakens the inhibitory effectiveness of the coal sample over time; coal spontaneous combustion could be effectively inhibited.

中文翻译：

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咪唑类离子液体在煤上的热力学特性分析

为了研究离子液体（ILs）对煤的氧化燃烧特性的影响，确定了离子液体对煤的氧化特性，例如特征温度，热质量损失率和氧化动力学特征参数。结果表明，[BMIm] [I]处理过的煤样品提高了裂化温度（T ₁），最大氧化质量增益（T ₂），着火温度（T ₃），燃尽温度（T ₄），最小热速率（T _a）），最大热能（T _b）和最大热速率（T _c）分别升高33.2、29.3、20.7、42.8、11.4、23.0和27.9°C。用离子液体处理的煤样品的增加质量比分别在水蒸发和热分解阶段增加和减少。离子液体处理后的煤样品的表观活化能（E _a）增加，其机理也随之改变。这些结果表明，离子液体在吸收氧气，增加质量和燃烧损失的阶段提高了煤样品的热稳定性。ILs破坏了煤的分子结构，并最终影响了燃烧性能的变化。此外，[BMIm] [BF ₄]几乎不会随着时间的推移削弱煤样品的抑制效果；煤的自燃可得到有效抑制。