抚顺油页岩热解动力学模型的对比研究

利用热重分析（TG）研究了抚顺油页岩在氩气氛围中不同升温速率的热失重行为，对比分析了DAEM模型、Coats?Redfern法、FWO法和Doyle法4种热动力学模型。结果表明，不同的动力学模型分析结果不同，Coats?Redfern法的活化能（E）变化不大，且E属于某一温度范围内的平均值，其整体上随着升温速率的增加而增大，当升温速率为20 ℃/min时，E为109.40 kJ/mol；DAEM模型、Doyle法和FWO法的E都随着转化率的增加而增大。此外，DAEM模型和FWO法得到的E较为接近，且DAEM 模型的决定系数最高。因此，DAEM 模型在4种热动力学分析方法中更适合抚顺油页岩热解的动力学分析。

Comparative Study on Pyrolysis Kinetic Model of Fushun Oil Shale

TG was used to study the thermogravimetric behavior of Fushun oil shale at different heating rates in argon atmosphere. Four thermal kinetic models, DAEM model, Coats?Redfern method, FWO method and Doyle method, were compared and analyzed. The results show that the results of different dynamic model analysis are different: Coats?Redfern method, activation energy (E) has little change, and E belongs to the average value in a certain temperature range, which increases with the increase of heating rates as a whole. E is 109.40 kJ/mol when the heating rate is 20 ℃/min. The E of the DAEM model, the Doyle method, and the FWO method all increase with the increase of conversion rate. In addition, the E obtained by the DAEM model and the FWO method are relatively close, the DAEM model has the highest coefficient of determination. Therefore, the DAEM model is the most suitable for the kinetic analysis of Fushun oil shale pyrolysis among four thermodynamic analysis methods.