Pyrolysis Properties of Potential Biomass Fuels in Southwestern China

The pyrolysis behavior of two biomass fuels (E. adenophorum and tobacco stem) and their production were analyzed in this paper using Thermo gravimetric analyzer (TGA) combined with a Fourier transform infrared spectrometer (FTIR). The gaseous phase components derived from the samples decomposing were qualitatively evaluated, and a correlation between the yield of acetic acid and carbon dioxide with heating rate was observed. The global pyrolysis kinetic was determined by DAE method where Miura method was used for obtaining \( f(E) \), and a fixed pre-exponential factor of 2.2e13 was used to fit DTG curves. CO₂ yield was found increased with the accretion of heating rate, while the other gaseous phase production and acetic acid were decreased simultaneously. The maximum of \( f(E) \) was found around 170–180 kJ/mol.