Effect of Heating Rate on the Municipal Sewage Sludge Pyrolysis Character

AbstractIn this paper, the TG and DTG curve of sewage sludge from Xi’an Business Water Limited Corporation were derived from tests of thermogravimetric analyzer. Pyrolysis characteristics and kinetics of dried sludge were investigated using thermalanalysis. The result showed that there are three temperature ranges in which the sludge lost weight in the process of pyrogenation. Kinetic fitting equation of the second pyrolysis reaction stage were founded and the kinetic parameters of pyrolysis reaction were calculated respectively by Coats-Redfern integration method, and the effect of heating rate on the sludge pyrolysis characteristics was discussed