根据均匀模型和有限厚度区模型 ,对结焦的分子筛裂化催化剂进行了再生时的瞬态温升模拟。将所建模型应用到半间歇的流化床再生反应器内 ,对比测定值与模型计算值 ,发现模型计算值能较好地模拟实验过程。研究结果表明 ,在 75 0℃以上的温度下再生时 ,颗粒最高温升达 5 3 .5 1℃ ,气固间温差达 42 .67℃ ,说明即使气膜内的传质阻力可以忽略不计时 ,传热阻力仍很大。 According to the uniform model and finite thickness region model, transient temperature rise simulation of coked zeolite cracking catalyst was carried out. The model was applied to a semi-batch fluidized bed reactor. The measured values ​​and the calculated values ​​of the model were compared. It was found that the calculated values ​​of the model could simulate the experimental process well. The results show that when the temperature is above 75 0 ℃, the maximum temperature of the particles reaches 53.51 ℃ and the temperature difference between gas and solid reaches 42.67 ℃, which shows that even if the mass transfer resistance in the gas film is negligible , Heat transfer resistance is still great.