Study on the formation of direct reduced iron by using biomass as reductants of carbon containing pellets in RHF process | |
Yuan, Peng1; Shen, Boxiong1; Duan, Dongping2; Adwek, George1; Mei, Xue1; Lu, Fengju1 | |
刊名 | ENERGY |
2017-12-15 | |
卷号 | 141页码:472-482 |
关键词 | Biomass Reductants Direct Reduced Iron Shrinkage Strength Metallization |
ISSN号 | 0360-5442 |
DOI | 10.1016/j.energy.2017.09.058 |
文献子类 | Article |
英文摘要 | To investigate the possibility of using biomass reductants instead of fossil fuels in the formation of direct reduced iron (DRI) in rotary hearth furnace (RHF), three kinds of cheap biomass such as bamboo char, straw fiber and charcoal were selected as reductants to compare with anthracite and graphite. The effect of reductants, temperature, dwelling time, C/O ratio and particle sizes on the shrinkage, strength and metallization of the biomass/ore pellets was investigated and discussed. The optimized reduction conditions were obtained as 1200 degrees C, 20min, C/O = 0.7 and the particle size range of <0.15 mm, 1-2 mm and 015-0.3 mm for straw fiber, bamboo char and charcoal respectively. The results showed that straw fiber was considered as an optimal reductant in the formation of direct reduced iron instead of fossil fuels. By the techniques of scanning electron microscope (SEM), thermogravimetric analysis (TGA), and X-ray diffraction (XRD), the mechanism of biomass as reductants was revealed. Volatile matter was confirmed to play an important role in the formation of DRI when biomass used as reductants. (C) 2017 Elsevier Ltd. All rights reserved. |
WOS关键词 | Residual Volatile Matter ; Steel-industry ; Ore Reduction ; Ironmaking Process ; Composite Pellets ; Co2 Emissions ; Coal-char ; Part i ; Steelmaking ; Kinetics |
WOS研究方向 | Thermodynamics ; Energy & Fuels |
语种 | 英语 |
WOS记录号 | WOS:000426335600041 |
资助机构 | Natural Science Foundation of Hebei Province(E2016202361) ; National Key Research and Development Plan(2016YFCO209202) ; Research Fund of International Young Scientists(51550110237) ; Science and technology project from Hebei Province(16273709D) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/24055] |
专题 | 过程工程研究所_研究所(批量导入) |
作者单位 | 1.Hebei Univ Technol, Sch Energy & Environm Engn, Tianjin 300401, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
推荐引用方式 GB/T 7714 | Yuan, Peng,Shen, Boxiong,Duan, Dongping,et al. Study on the formation of direct reduced iron by using biomass as reductants of carbon containing pellets in RHF process[J]. ENERGY,2017,141:472-482. |
APA | Yuan, Peng,Shen, Boxiong,Duan, Dongping,Adwek, George,Mei, Xue,&Lu, Fengju.(2017).Study on the formation of direct reduced iron by using biomass as reductants of carbon containing pellets in RHF process.ENERGY,141,472-482. |
MLA | Yuan, Peng,et al."Study on the formation of direct reduced iron by using biomass as reductants of carbon containing pellets in RHF process".ENERGY 141(2017):472-482. |
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