利用棕榈仁壳未碳化生物质碳热还原钛铁矿

Q1 Environmental Science Case Studies in Chemical and Environmental Engineering Pub Date : 2025-06-01 Epub Date: 2025-01-25 DOI:10.1016/j.cscee.2025.101119

Boy Attaurrazaq , Sri Harjanto , Reza M. Ulum , Agung Setiawan , Adji Kawigraha

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摘要

本研究旨在利用未碳化棕榈核壳生物质（PKS-B）作为还原剂碳热还原钛铁矿（FeTiO3），并将其与活化生物质（PKS-BA）的还原剂进行对比。热力学评价预测了加入PKS-B后，在700℃时铁（Fe）的生成。实验结果表明，PKS-B在1000℃时可将钛铁矿还原为Fe、Fe2TiO5和TiO2，金属化度（MD）为70.9±0.7%。然而，PKS-B发现钛铁矿相在1000°C时仍然存在。1200℃时钛铁矿完全还原，PKS-B和PKS-BA的MD分别为98.6±0.7%和96.6±0.7%。

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Carbothermic reduction of ilmenite using non-carbonized biomass from palm kernel shell

This study aims to utilize non-carbonized palm kernel shell biomass (PKS–B) as reductor in carbothermic reduction of ilmenite (FeTiO₃), comparing its effectiveness to that of activated biomass (PKS-BA). The thermodynamic assessment predicted the iron (Fe) formation with addition of PKS-B at 700 °C. The experimental results indicated that PKS-B could reduce ilmenite to Fe, Fe₂TiO₅, and TiO₂ at 1000 °C, achieving a metallization degree (MD) was 70.9 ± 0.7 %. However, the ilmenite phase remained at 1000 °C by PKS-B. Complete reduction of ilmenite was observed at 1200 °C, resulting in MD was 98.6 ± 0.7 % and 96.6 ± 0.7 % for PKS-B and PKS-BA, respectively.

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