The influence of the gasification temperature and Equivalence Ratio (ER) on the behavior of an industrial low-grade Solid Recovered Fuel (SRF) was investigated in an air bubbling fluidized bed. The studied SRF exhibits an intermediate composition between biomass-rich SRF and plastic-rich SRF. Its Lower Heating Value (14 MJ/kg) is low since its ash content is very high (35 wt%). But surprisingly, the Cold Gas Efficiency and the Carbon Conversion were relatively high with this type of low-grade SRF. As a result, the syngas produced is quite rich (LHV > 8 MJ/m³ STP) and it may be valorized in gas engines. H₂S, HCl, HCN and NH₃ in the syngas were analyzed. These results confirm that inorganic gases are an important issue for the valorization of SRF as fuel in gasification processes, even if significant parts of S, N and Cl are not converted into inorganic gases.

Graphic Abstract

中文翻译：

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鼓风流化床中低级SRF的气化：永久性和无机气体的表征

在鼓泡流化床中研究了气化温度和当量比（ER）对工业低品位固体回收燃料（SRF）行为的影响。研究的SRF表现出介于富含生物质的SRF和富含塑料的SRF之间的中间组成。它的较低的发热量（14 MJ / kg）低，因为其灰分含量很高（35 wt％）。但是令人惊讶的是，使用这种类型的低等级SRF的冷气效率和碳转化率相对较高。结果，产生的合成气非常丰富（LHV> 8 MJ / m ³ STP），可以在燃气发动机中使用。H ₂ S，HCl，HCN和NH ₃在合成气中进行了分析。这些结果证实，即使大部分S，N和Cl未被转化为无机气体，无机气体对于气化过程中作为燃料的SRF的增值也是重要的问题。

图形摘要