Study on pyrolysis of Organosolv lignin impregnated with alkali and alkaline earth metals: Kinetics, thermodynamics, and product characterization

•Global kinetic parameters were determined using isoconventional, generalized master plot, model based, and Frazer-Suzuki deconvolution methods.•Lumped kinetic model applied to Organosolv lignin pyrolysis, and calculated kinetic parameters showed lignin to liquid was predominant pathway.•Effect of AAEMs on kinetic, and product characterization on Organosolv lignin pyrolysis analyzed systematically.•2.0 wt% Mg loading was the strongest effect on Organosolv lignin pyrolysis.