| Nowadays the method of incineration is in use for the treatment of Municipal solid waste (MSW) in a big scale. During using this method, some problems come out, especially the poisonous gases like dioxin-pollution etc. However, the pyrolysis can solve the problems which are brought by the incineration treatment of MSW. And there are many different relative aspects which can affect the progress of pyrolysis treatment of MSW, like the heat, hesitation time and so on, but the particle size is seldom mentioned or studied by people. Actually, the particle size may have a great affection on in the progress of pyrolysis treatment of MSW.This article is studying about the relative aspects of pyrolysis treatment of MSW, especially the particle size and relative items (temperature and hesitation time) by doing some experiments in a small-scale fixed bed reactor to analysis the affections to the progress and result of the pyrolysis treatment of MSW.In compare with the some different kinds of treatment of MSW(sanitary landfill, compost, incineration and pyrolysis ), we know that pyrolysis is a promising method to deal with the MSW problem in the future. We discuss about the reaction mechanism and the relative aspects and we keep eyes on the particle size, temperature and hesitation time which can affect on the progress of pyrolysis treatment of MSW.In order to study the impact of the particle size to the treatment of MSW, the experiments are operated in a small-scale fixed bed reactor. We analyze the effect and product under different situation of mixed-waste and single waste. From the results, we know that as the particle-size goes down, the product goes higher and the char and tar yield goes down. When the temperature reach to a certain value, the effect of the particle-size to the MSW become weaker.In order to be similar with the real production, we make the large-scale reactor to study the factors. We make use of the out-heat and continue-feeding to improve the effect and the results. |
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