Influence of Screening and Drying on Low‐Quality Wood Chips for Application in Small‐Scale Gasification Plants,Chemical Engineering & Technology

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Influence of Screening and Drying on Low‐Quality Wood Chips for Application in Small‐Scale Gasification Plants
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-06-02 , DOI: 10.1002/ceat.202000034
Annett Pollex ₁ , Simon Lesche ₂ , Daniel Kuptz ₂ , Thomas Zeng ₁ , Georg Kuffer ₃ , Jana Mühlenberg ₁ , Hans Hartmann ₂ , Volker Lenz ₁

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Before using low‐quality wood chips for gasification on the small and medium scale (30–500 kW_el), mechanical fuel pretreatment has to be employed to ensure the required fuel characteristics concerning particle size distribution and moisture. Two different low‐quality wood assortments (calamity wood and roadside maintenance wood) were subjected to three different mechanical fuel pretreatment strategies and a detailed analysis was realized along the supply chains. The results reveal the enrichment in elements characteristic of soil contamination in the removed fine fraction. Gasification tests were successfully performed with the upgraded low‐quality fuels in field trials and indicated comparable electrical efficiencies but higher supervision effort during plant operation.

中文翻译：

筛选和干燥对用于小型气化厂的劣质木片的影响

在中小规模（30–500 kW _el）上使用劣质木屑进行气化之前，必须先进行机械燃料预处理，以确保所需的与粒度分布和湿度有关的燃料特性。对两种不同的低质量木材分类（回火木材和路边维护木材）进行了三种不同的机械燃料预处理策略，并沿供应链进行了详细分析。结果表明，在去除的细颗粒中富集了土壤污染的特征元素。在现场试验中，使用升级后的劣质燃料成功进行了气化测试，结果表明可比的电气效率，但在工厂运营期间需要更多的监督工作。

更新日期：2020-06-02

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