四浪费材料,报纸,木头,纺织品和厨房垃圾,在市政的固体,废物在一个固定的床反应堆与氧独立被气化。产品字符, tar 和气体,煤气的部件 H 2, 公司的作文,公司 2 和 CH 4, 和更低的加热值(LHV ) 的收益在在 700 和 900 之间的温度被检验; °C 和等价比率(嗯) 在 0.14 和 0.32 之间。煤气的进化的特征在气化期间被调查。当时,结果证明更高的温度改进 H 2 和公司的形成降低公司 2 和 CH 4 的收益。syngas 的 LHV 与温度增加并且在 6 –10 的范围变化;在 800 到达最大值的 MJ·m − 3, ; °C 以上。当嗯增加,当公司 2 的收益线性地升起时, syngas 的易燃的煤气的部件和 LHV 减少。适当嗯为获得高质量,气体在 0.18 –0.23 的范围。温度并且嗯在产品分发上有重要效果。更高的温度并且嗯在纺织品和厨房垃圾的气化为更高煤气的产量和字符和焦油的更低的产量是有利的。在 800 ; °C,煤气的进化可以被划分成二个区域。在第一个区域,气体的流动率增加然后很快减少,当在第二个区域流动率 monotonically 减少到底层时。
Four waste materials, paper, wood, textile and kitchen garbage, in municipal solid waste were gasified separately with oxygen in a fixed bed reactor. The yields of products char. tar and gas, the composition of gas components H2, CO, CO2 and CH4, and the lower heating value (LHV) were examined at temperatures between 700 and 900 ℃ and equivalence ratio (ER) between 0.14 and 0.32. Characteristics of gas evolution during gasification were inves- tigated. Results show that a higher temperature improves the formation of H2 and CO while lowers the yield of CO2 and CH4. The LHV of syngas increases with temperature and varies in the range of 6-10 MJ. m-3 reaching the maximum at 800 ℃ or above. As ER increases, both combustible gas component and LHV of syngas decrease while the yield of CO2 rises linearly. The appropriate ER for obtaining high quality gas is in the range of 0.18-0.23. Temperature and ER have significant effects on the product distribution. Higher temperature and ER are favorable for higher gas yield and lower yield of char and tar in the gasification of textile and kitchen garbage. At 800 ℃, the gas evolution may be divided into two regions. In the first region, the flow rate of gas increases and then de- creases ranidlv, while in the second reuion the flow rate decreases monotonically to lower level.