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松木生物炭作为铁矿石减少中的环保降解剂的潜力

Ajcharapa Chuanchai¹, Keng-Tung Wu¹

¹Department of Forestry, National Chung Hsing University, Taichung 402, Taiwan.

|April 1, 2024

概括

松木生物炭在与焦炭结合时有效地增强铁矿石碳热减热. 在最佳条件下,在1300°C使用80%的松木焦炭和20%的焦炭,为传统的还原剂提供了可持续的替代品.

科学领域:

材料科学材料科学材料科学
金工程金工程金工程
可持续化学可持续化学

背景情况:

传统上,铁矿石的碳热还原主要依赖焦炭.
对于可持续实践的日益增长的需求需要探索替代性减少剂.
生物质衍生材料生物炭是一种潜在的环保替代品.

研究的目的:

调查松木生物炭 (PW) 和焦炭作为铁矿石碳热减少中的降解剂的最佳比例.
为了评估生物炭作为部分或完全取代焦炭的效率.
为了确定使用生物炭最大限度地实现金属化的理想条件.

主要方法:

使用TGA,元素分析,XRF和SEM进行原材料 (松木生物炭,焦炭,铁矿石) 的表征.
在高温下进行碳热还原实验,以评估金属化效率.
化学分析金属化颗粒的总铁 (T.Fe),金属铁 (M.Fe) 和残留氧化物 (Fe2O3,FeO).

主要成果:

添加松木生物炭显著提高了碳热减热效率.
在1300°C以20分钟的保持时间实现了最佳的减温,使用20%的焦炭和80%的松木炭的混合物.
松木生物炭证明了其作为一种减少剂的有效性,增加了金属化.

结论:

松木生物炭是铁矿石碳热减少中可用的可替代可剂.
使用生物炭可以减少铁生产中的整体焦炭消耗,从而有助于碳减排.
来自生物质的材料为钢铁行业提供了一个可持续的途径.

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