To study the pyrolysis characteristics of corn stalk and determine the reaction kinetic parameters

experiments were conducted on a thermogravimetric analyzer at four heating rates of 20℃/min

40℃/min

80℃/min and 100 ℃/min

respectively.Three methods of Popescu

FWO and KAS were applied to obtain the most probable mechanism function

activation energy and preexponential factor.The kinetic analysis shows that the anti-Jander equation is the best most probable mechanism function and the activation energy has an increasing trend with the heating rate. The experimental results show that

TG curves of the corn stalk move to high temperature zone with the increasing heating rate

meanwhile

the initial and final temperature of the pyrolysis process and the peak temperature of weightlessness also increases.