基于O2/CO2气氛下焦炭燃烧的复杂气固反应，提出多种碳基随机孔模型(Various Char-RPM)模拟焦炭颗粒燃烧过程，对影响其竞争效应的因素进行分析. 结果表明，焦炭燃烧竞争效应主要发生在动力扩散控制区，此时颗粒孔隙中的气体浓度明显波动，燃烧不稳定. 提高环境中O2浓度和减小焦炭颗粒粒径均可弱化和消除竞争效应，减小粒径的效果更明显.
Based on the complex gas solid reaction of coke combustion in O2/CO2 atmosphere, the various char random pore model (Various Char-RPM) was proposed to simulate char particle combustion process. The influencing factors of competition effect in the char particle combustion process were analysed. The results showed that the competition effect of coke combustion was mainly in the dynamic diffusion control area. The gas concentration in the pores of the particles was obviously fluctuating, and the combustion was extremely unstable. Increasing of the concentration of O2 of the environment and decreasing of the particle size of the coke can weaken or eliminate the competition effect, the latter more obvious.
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