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Experimental and theoretical study on the fluidization behaviors of iron powder at high temperature

文献类型：期刊论文

作者Lei, Chao1,2; Zhu, Qingshan1; Li, Hongzhong1
刊名CHEMICAL ENGINEERING SCIENCE
出版日期2014-10-18
卷号118期号:OCT.页码:50-59
关键词Fluidized bed Iron powder Defluidization Agglomerates Modeling
ISSN号0009-2509
其他题名Chem. Eng. Sci.
中文摘要Fluidization behavior of iron powder in N-2 was investigated in detail under the fluidization gas velocity of 2-10 u(mfo) at 600-800 degrees C. Four types of fluidization behaviors, i.e., stable fluidization, agglomerating fluidization, gradual defluidization and fast defluidization, were expressly described and distinguished, instead of only two types (i.e., fluidization and defluidization) reported in the literature. Further investigation revealed that the occurrence of different types of fluidization behaviors was caused by the differences in the formation and growth of agglomerates under different fluidization conditions. Particularly, gradual or fast defluidization was caused by the continuous formation and growth of agglomerates in the whole process. However, if formation and growth of agglomerates could Finally reach equilibrium, agglomerating fluidization would occur without defluidization. Moreover, a theoretical model was proposed based on the force balance analyses between the collision force and the cohesive force. Through the analyses of the formation and growth of agglomerates, the occurrence of four fluidization behaviors was well explained, especially for the agglomerating fluidization and gradual defluidization. (C) 2014 Elsevier Ltd. All rights reserved.
英文摘要Fluidization behavior of iron powder in N-2 was investigated in detail under the fluidization gas velocity of 2-10 u(mfo) at 600-800 degrees C. Four types of fluidization behaviors, i.e., stable fluidization, agglomerating fluidization, gradual defluidization and fast defluidization, were expressly described and distinguished, instead of only two types (i.e., fluidization and defluidization) reported in the literature. Further investigation revealed that the occurrence of different types of fluidization behaviors was caused by the differences in the formation and growth of agglomerates under different fluidization conditions. Particularly, gradual or fast defluidization was caused by the continuous formation and growth of agglomerates in the whole process. However, if formation and growth of agglomerates could Finally reach equilibrium, agglomerating fluidization would occur without defluidization. Moreover, a theoretical model was proposed based on the force balance analyses between the collision force and the cohesive force. Through the analyses of the formation and growth of agglomerates, the occurrence of four fluidization behaviors was well explained, especially for the agglomerating fluidization and gradual defluidization. (C) 2014 Elsevier Ltd. All rights reserved.
WOS标题词Science & Technology ; Technology
类目[WOS]Engineering, Chemical
研究领域[WOS]Engineering
关键词[WOS]EXPERIMENTAL-VERIFICATION ; DEFLUIDIZATION BEHAVIOR ; AGGLOMERATION ; BED ; PARTICLES ; DESTABILIZATION ; MODEL ; COAL ; GAS
收录类别SCI
原文出处://WOS:000341412000006
语种英语
WOS记录号WOS:000341412000006
公开日期2014-11-02
版本出版稿
源URL[http://ir.ipe.ac.cn/handle/122111/11646]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Lei, Chao,Zhu, Qingshan,Li, Hongzhong. Experimental and theoretical study on the fluidization behaviors of iron powder at high temperature[J]. CHEMICAL ENGINEERING SCIENCE,2014,118(OCT.):50-59.
APA Lei, Chao,Zhu, Qingshan,&Li, Hongzhong.(2014).Experimental and theoretical study on the fluidization behaviors of iron powder at high temperature.CHEMICAL ENGINEERING SCIENCE,118(OCT.),50-59.
MLA Lei, Chao,et al."Experimental and theoretical study on the fluidization behaviors of iron powder at high temperature".CHEMICAL ENGINEERING SCIENCE 118.OCT.(2014):50-59.

入库方式： OAI收割

来源：过程工程研究所

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