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Ironmaking & Steelmaking
Processes, Products and Applications
Volume 43, 2016 - Issue 2
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Research Article

Reduction characteristics and kinetics of iron oxide by carbon in biomass

R. WeiSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing100083, ChinaCorrespondence[email protected]
,
D. CangSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing100083, ChinaCorrespondence[email protected]
,
Y. BaiThe Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang110004, China
,
D. HuangSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing100083, China
&
X. LiuSchool of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing100083, China;State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing100083, China
Pages 144-152 | Received 16 Jun 2015, Accepted 09 Aug 2015, Published online: 18 Mar 2016
 
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Abstract

The characteristics and kinetics of iron oxide reduction by carbon in biomass composites were studied. Iron oxide can be reduced by biomass very rapidly, and the degree of metallisation and reduction increases with temperature. Iron oxide reduction by carbon in biomass can be divided into two stages: reduction by volatile carbon followed by reduction by non-volatile carbon. The reduction times of the two stages both decrease with increasing temperature. The first reduction is controlled by gas diffusion, whereas the second stage is dominated by carbon gasification.

Acknowledgement

This work was financially supported by National Natural Science Foundation of China (No. 51234008 and No. 51574024) and Fundamental Research Funds for the Central Universities (FRF-TP-14-111A2).

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