This study proposes a model of syngas production from municipal solid waste (MSW) gasification with air in fixed bed reactors. The model (using aspen plus simulator) is used to predict the results of MSW gasification and to provide some process fundamentals concerning syngas production from MSW gasification. The effects of gasification temperature, air equivalence ratio and moisture concentration on the composition of syngas, lower heating value (LHV) of syngas, heat conversion efficiency, and carbon conversion are discussed. The results indicate that higher temperature improves gasification, and higher air equivalence ratio increases the carbon conversion while decreasing syngas LHV. Heat conversion efficiency increases and reaches the maximum and then decreases with the increase of air equivalence ratio. Higher moisture concentration increases the carbon conversion and increases the heat conversion efficiency at lower ratios. Higher temperature and a lower equivalence ratio are favorable for obtaining a higher LHV of syngas at the same moisture concentration.
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机译:本研究提出了从固定床反应器中的空气中的城市固体废物(MSW)气化的合成气生产模型。该模型(使用Aspen Plus Simulator)用于预测MSW气化的结果,并提供来自MSW气化的合成气生产的一些过程基础。讨论了气化温度,空气等效比和水分浓度对合成气组成,合成气,热转换效率和碳转化率的较低加热值(LHV)的影响。结果表明,较高的温度改善气化,并且较高的空气当量比在减少合成气LHV时增加碳转化。热转换效率增加并达到最大值,然后随着空气等效比的增加而降低。较高的水分浓度增加了碳转化率,并增加了较低比率的热转换效率。更高的温度和较低的等效比对于在相同的水分浓度下获得更高的合成气LHV。
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