Kinetics Calculation of the Non-isothermal Reduction of Pellet
Abstract: The reduction tests of pellet were carried out from room temperature to 1,373 K in the condition of traditional blast furnace (TBF) and oxygen blast furnace (OBF) by thermogravimeter measurement. The apparent activation energy E, pre-exponential factor A and the controlling steps of reaction were determined by the non-isothermal method of Coats–Redfern. In the condition of TBF, the reduction is controlled by solid diffusion to interfacial chemical reaction at initial stage, and gas diffusion at final stage. In the condition of OBF, the controlling step switched from solid diffusion to gas diffusion + interfacial chemical reaction in the beginning and the interfacial chemical reaction at the late stage. Meanwhile, the transition temperature points of the controlling step were predicted. The transition temperatures are 750℃ and 900℃ in TBF and 630℃ (earlier 120℃ than in TBF) and 900℃ (after the insulation) in OBF.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Kinetics Calculation of the Non-isothermal Reduction of Pellet ; volume:35 ; number:5 ; year:2016 ; pages:507-514 ; extent:8
High temperature materials and processes ; 35, Heft 5 (2016), 507-514 (gesamt 8)
- Creator
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Yingli, Liu
Jingsong, Wang
Wentao, Guo
Zeshang, Dong
Qingguo, Xue
- DOI
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10.1515/htmp-2015-0034
- URN
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urn:nbn:de:101:1-2501280245159.104676885192
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:30 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Yingli, Liu
- Jingsong, Wang
- Wentao, Guo
- Zeshang, Dong
- Qingguo, Xue
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