The Pyrolysis Kinetics Analysis Of Living Gabbage And The Design Of Pyrolysis Device

With the development of our country, the garbage processing problem is increasing.The pyrolysis disposal technology has obvious advantages in reduction and pollutionreducing among the disposal technologies, which has a better prospect for development.First of all, based on the advantages and disadvantages of all kinds of garbage disposaltechnologies in this paper, a integration process including the pyrolysis of living garbageunder a flue gas atmosphere and the combustion of low calorific value pyrolysis gas isproposed. The TG-FTIR analysis,dynamics analysis,tube furnace experimental analysiswere carried out.In the TG-FTIR analysis of the living garbage, the biomass pyrolysis gas from thesimilar pyrolysis process include CO2、CO、H2、H2O、CxHyetc and the plastic wastepyrolysis gas is mainly the hydrocarbons. Because the effects of the carrier gas compositionon pyrolysis mechanism is little, the second area of biomass waste weightlessness processcould described by F1the First order Chemical Reaction and the third area could describedby D3the Three-way transport Diffusion Mechanism. The pyrolysis rate and activationenergy under the flu gas is higher than those under the N2atmosphere.The higher heating rate could enhance the intensity of the reaction, make short of thereaction time, but it has less influence on the trend and the gas composition. There aredifferent activation energy and the frequency factor under different heating rates, or underdifferent components.The pyrolysis trend of living garbage in tube furnace which is the same with theTG-FTIR experiment, the gas is concentrated as the higher heating rates. Under theexperimental conditions of the tube furnace, the heating value of biomass pyrolysis gas isabout2MJ-3.5MJ, belonging to the gas of low calorific.Based on the study of the rational machine of waste thermal weight loss and gasproduced process, the description of the integration cycle process of living garbagepyrolysis and the low calorific value pyrolysis gas combustion under the flue gasatmosphere is carried out, providing the theoretical basis for the next step research.