Non-isothermal thermogravimetric analysis (TGA) at four heating rates of 10, 20, 30 and 40 K min⁻¹ under oxidative atmosphere was employed to investigate the characteristics of microalgae residue oxidative pyrolysis. The double distributed activation energy model (DAEM) was used to analyze the oxidative pyrolysis kinetics of microalgae residue and the simulated annealing method was employed for the estimation of the model parameters. The results showed that the double DAEM could describe the kinetic experimental data of microalgae residue oxidative pyrolysis very well whilst the simulated annealing method was effective for determining the kinetic parameters of the double DAEM. The kinetic process of microalgae residue oxidative pyrolysis could be considered as two partially overlapped pseudo-sub-processes. The mean values of activation energy distributions were 179 and 259 kJ mol⁻¹ for the first and second pseudo-sub-processes. The thermodynamic parameters of microalgae residue oxidative pyrolysis processes at the different heating rate were studied based on the obtained kinetic parameters.

非等温热重分析（TGA）在10、20、30和40 K min ^-1的四种加热速率下在氧化气氛下，研究了微藻残渣的氧化热解特性。采用双分布活化能模型（DAEM）分析微藻残渣的氧化热解动力学，并采用模拟退火法估算模型参数。结果表明，双DAEM可以很好地描述微藻残渣氧化热解的动力学实验数据，而模拟退火方法可以有效地确定双DAEM的动力学参数。微藻残渣氧化热解的动力学过程可以看作是两个部分重叠的伪子过程。活化能分布的平均值分别为179和259 kJ mol ^-1对于第一和第二伪子过程。基于得到的动力学参数，研究了微藻残渣氧化热解过程在不同升温速率下的热力学参数。