Pyrolysis on Screen Residue of Municipal Household Waste

Laboratory-made batch biomass pyrolysis apparatus was used to study the pyrolysis behavior of screen residue of municipal household waste. Three experimental schemes were applied to making out how different temperatures of 550 ℃ and 700 ℃ influenced the pyrolysis product, and whether the existence of pyrolysis residue would change experimental results. The results indicate that, at 700 ℃, both gas yield and instantaneous rate of gas yield are higher than those at 550 ℃. The instantaneous rate curve of gas yield has a good agreement with the instantaneous power consumption curve, but has a time lag of 5—10 min. Whether pyrolysis residue exists or not hardly influences solid, liquid and gas yield, gas characteristics and energy consumption etc.