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Reduction Kinetics ...
Reduction Kinetics of Cold-Bonded Briquette Prepared from Return Fines of Sinter with Carbon Monoxide and Coke
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- Li, Ying (author)
- State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, 99 Shangda Rd, Shanghai, 200444, China
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- Ren, Jie (author)
- State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, 99 Shangda Rd, Shanghai, 200444, China
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- Wei, Han (author)
- State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, 99 Shangda Rd, Shanghai, 200444, China
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- Khan, Inam Ullah (author)
- State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, 99 Shangda Rd, Shanghai, 200444, China
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- Omran, Mamdouh (author)
- Process Metallurgy Research Group, Faculty of Technology, University of Oulu, 90014, Oulu, Finland
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- Fabritius, Timo (author)
- Process Metallurgy Research Group, Faculty of Technology, University of Oulu, 90014, Oulu, Finland
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- Shu, Qifeng (author)
- Process Metallurgy Research Group, Faculty of Technology, University of Oulu, 90014, Oulu, Finland
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- Wang, Chuan (author)
- KTH,Materialvetenskap,Department of Process Metallurgy, Swerim AB, SE-971 25, Luleå, Sweden
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- Zang, Yonggang (author)
- School of Materials and Metallurgy, Guizhou University, Guiyang, 550025, China; Guizhou Province Key Laboratory of Metallurgical Engineering and Energy Process Saving, Guiyang, 550025, China
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- Yu, Yaowei (author)
- State Key Laboratory of Advanced Special Steel, Shanghai Key Laboratory of Advanced Ferrometallurgy, School of Materials Science and Engineering, Shanghai University, 99 Shangda Rd, Shanghai, 200444, China, 99 Shangda Rd
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(creator_code:org_t)
- Wiley, 2023
- 2023
- English.
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In: Steel Research International. - : Wiley. - 1611-3683 .- 1869-344X. ; 94:8
- Related links:
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https://doi.org/10.1...
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Abstract
Subject headings
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- The reduction kinetics of cold-bonded briquette prepared from return fines of sinter is studied. The results reveal that cold-bonded briquettes with coke (CBBC) have a higher reduction velocity index (RVI) value than cold-bonded briquettes without coke (CBB). Interfacial chemical reaction controls the early stages of the CBB reduction process at 900 and 950 °C, followed by both interfacial chemical reaction and internal diffusion. At 1000, 1050, and 1100 °C, the early and final stages of the CBB reduction process are controlled by interfacial chemical reaction and internal diffusion, respectively, while both interfacial chemical reaction and internal diffusion control middle stage. The apparent activation energies of the different stages are 46.20, 56.74, 38.24, and 40.74 kJ mol−1, respectively. The gasification of carbon reaction controls the reduction process of CBBC, and the apparent activation energy is 32.42 kJ mol−1. According to the Friedman method, the apparent activation energy of CBB and CBBC is reasonable. Coke promotes the phase transformation in CBBC. Scanning electron microscopy results show that the CBBC sample is more fully reduced than the CBB sample and that it has smoother corners and edges of the iron-bearing phase or the metallic iron phase than the CBB sample.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Keyword
- cold-bonded briquettes
- kinetic analyses
- phase transformations
- reduction behaviors
- return fines of sinter
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Li, Ying
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Ren, Jie
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Wei, Han
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Khan, Inam Ullah
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Omran, Mamdouh
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Fabritius, Timo
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show more...
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Shu, Qifeng
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Wang, Chuan
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Zang, Yonggang
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Yu, Yaowei
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Materials Engine ...
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and Metallurgy and M ...
- Articles in the publication
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Steel Research I ...
- By the university
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Royal Institute of Technology