Thermogravimetric Analysis of Biomass Pyrolysis under Different Atmospheres

Thermogravimetric analysis (TGA) was employed to study the effects of two different atmospheres (nitrogen and mixed biomass gasification gas) on the pyrolysis of rice husk, corn stalk and pine wood. Kinetic parameters were calculated based on the experiment data. The results indicated that TG and DTG curves moved to higher temperature range and the characteristic temperatures ascended as the increasing of the heating rate. Moreover, the three biomass materials exhibited similar pyrolysis behaviors under the two different atmospheres, but the activation energy values of the pyrolysis under mixed biomass gasification gas were higher than those under nitrogen.