城市生活垃圾低温热解产气特性的实验研究

The low-temperature pyrolysis of the mixture of nine typical components from municipal household garbage has been studied from 300 ℃ to 700 ℃ using an externally heated fixed-bed reactor with 200 mm diameter. The results indicate that with increasing pyrolysis temperature, the duration of pyrolysis reaction reduces, however, the total yield of pyrolysis gas and the maximum instantaneous yield increases. At the same time, the proportion of each gas component presents different variations with increasing temperature. At 600 ℃ the calorific value of the pyrolysis gas reaches the maximum, 15.13 MJ/m3, which meets the combustion standard for civil gas.