在催化裂化流化床反应器内进行了待生催化剂的再生试验 ,消除内外扩散影响后 ,回归出再生的本征动力学模型 ;再生温度升高时 ,扩散的影响逐渐明显 ,传质与化学反应同时对再生过程产生影响。用正交配置法解微分方程组 ,得出了高温再生时焦炭转化率与反应时间的关系模型 ,该模型能较好地与试验数据拟合 Regeneration experiments of spent catalyst were carried out in a catalytic cracking fluidized bed reactor. After eliminating the influence of internal and external diffusion, the intrinsic kinetic model of regeneration was regressed. When the regeneration temperature was increased, the effect of diffusion was obvious. Mass transfer and chemical The reaction also affects the regeneration process. By using the orthogonal configuration method to solve the differential equations, the relation model of coke conversion and reaction time at high temperature regeneration was obtained. The model can fit well with the experimental data