Kinetics and thermodynamics of microalgae residue oxidative pyrolysis based on double distributed activation energy model with simulated annealing method

•Double DAEM described microalgae residue oxidative pyrolysis kinetics well.•Simulated annealing method was effective for model parameter estimation.•Microalgae residue oxidative pyrolysis can be considered as two pseudo-sub-processes.•Thermodynamic parameters were calculated based on kinetic results.