The catalytic combustion and non-isothermal kinetics of bituminous coal by CeO₂, Fe₂O₃, and NiO were investigated. The exothermic characteristics during catalytic combustion of bituminous coal were determined. Based on the improved Coats-Redfern method by introducing the function of kinetics mechanisms, the activation energies and pre-exponential factors of catalytic combustion of bituminous coal were estimated iteratively by regression to enhance their accuracy. It is found that the catalysts promoted the transport of oxygen to the coal or char surface and effectively improved the combustion characteristics of bituminous coal. Under the same experimental conditions, the exothermic values were significantly increased and the catalysts of composite oxides exhibited higher exothermic values than pure metal oxide catalysts. The metal oxides significantly reduced the activation energies of bituminous coal combustion. SEM analysis presented that combustion residues became more porous with the addition of the catalyst.

CeO ₂，Fe ₂ O ₃对烟煤的催化燃烧和非等温动力学和NiO进行了研究。确定了烟煤催化燃烧过程中的放热特性。在引入改进的动力学机制的基础上，通过改进的Coats-Redfern方法，通过回归迭代的方法对烟煤催化燃烧的活化能和指数前因子进行了估计，以提高其准确性。发现催化剂促进了氧向煤或焦炭表面的输送，并有效地改善了烟煤的燃烧特性。在相同的实验条件下，放热值显着增加，复合氧化物催化剂的放热值比纯金属氧化物催化剂高。金属氧化物显着降低了烟煤燃烧的活化能。