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Kinetics of Oxidation Reaction for Magnetite Pellets
Alternative TitleKinetics of Oxidation Reaction for Magnetite Pellets
Liang Ruquan; Yang Shuo; Yan Fusheng; He Jicheng
2013
Source PublicationJOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
ISSN1006-706X
Volume20Issue:9Pages:16-20
AbstractAn experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the chemical reaction of surface is the controlling step of the overall reaction when the temperature is up to about 750 K, while the mass transfer through the gaseous boundary layer dominates the reaction rate when the temperature is above 750 K. As the reaction developing within the pellet, the mass transfer through the produced layer becomes the controlling step. In addition, the effects of reaction conditions (such as oxygen concentration, temperature) on the fractional oxidation of magnetite pellet were determined.
Other AbstractAn experiment for the oxidation process of single magnetite pellet and theoretical analysis based on modified unreacted core shrinking (MUCS) model were carried out, and the controlling mechanisms of the initial and developing reactions were examined, respectively. From the study of the initial reaction, it was found that the chemical reaction of surface is the controlling step of the overall reaction when the temperature is up to about 750 K, while the mass transfer through the gaseous boundary layer dominates the reaction rate when the temperature is above 750 K. As the reaction developing within the pellet, the mass transfer through the produced layer becomes the controlling step. In addition, the effects of reaction conditions (such as oxygen concentration, temperature) on the fractional oxidation of magnetite pellet were determined.
Keywordmagnetite pellet shaft furnace kinetics oxidation reaction controlling step
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China]
CSCD IDCSCD:4941339
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/153998
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Liang Ruquan,Yang Shuo,Yan Fusheng,et al. Kinetics of Oxidation Reaction for Magnetite Pellets[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2013,20(9):16-20.
APA Liang Ruquan,Yang Shuo,Yan Fusheng,&He Jicheng.(2013).Kinetics of Oxidation Reaction for Magnetite Pellets.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,20(9),16-20.
MLA Liang Ruquan,et al."Kinetics of Oxidation Reaction for Magnetite Pellets".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL 20.9(2013):16-20.
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