After biopretreatment, the samples were dried at 60 ◦C for 3 days, and ground to disperse the corn stover. Thermogravimetric experiments were performed in a highly accurate thermobalance (PerkinElmer, Diamond) at a heating rate of 10 ◦Cmin−1 up to a final temperature of 1000 ◦C under a nitrogen flow rate of 30 ml/min. The determination of the kinetic parameters was based on the Arrhenius equation and Coats and Redfern’s integral equation [29].