CAS OpenIR  > 研究所(批量导入)
Prevention of agglomeration/defluidization in fluidized bed reduction of Fe2O3 by CO: The role of magnesium and calcium oxide
Zhong, Yiwei1,2; Wang, Zhi1; Guo, Zhancheng3; Tang, Qing1
2013-06-01
Source PublicationPOWDER TECHNOLOGY
Volume241Issue:0Pages:142-148
AbstractInfluence of magnesium and calcium oxide on control of agglomeration and defluidization during Fe2O3 reduction was investigated in a visual fluidized bed reactor. Added MgO and CaO extended the defluidization time and thus inhibited agglomeration significantly. According to the controlled defluidization tests, the particle cohesiveness and agglomeration tendency of bed materials were reduced by adding MgO and CaO. And the inhibition of MgO was more effective. However, the inhibition effect was reduced with increasing the operating temperature. The coating layers of bed particles were examined by the scanning electron microscope/energy-dispersive spectroscopy (SEM/EDS), coupled with X-ray diffraction (XRD). Results showed that a coating layer on the surface was composed of magnesio-wustite (MgO center dot FeO) and calcio-wustite (CaO center dot FeO) generated by the reactions between Mg/Ca oxides and Fe2O3/FeO. During reduction process this coating layer was difficult to reduce and thus suppressed the connection of precipitated iron. Consequently, the bed particles became less sticky and avoided the surfaces of bed particles to adhere. (C) 2013 Elsevier B.V. All rights reserved.
KeywordFluidized-bed Reduction Fe2o3 Prevention Defluidization Magnesium/calcium Oxide
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
Language英语
WOS KeywordIRON-OXIDE ; PARTICLE AGGLOMERATION/DEFLUIDIZATION ; GAS FLUIDIZATION ; DEFLUIDIZATION ; TEMPERATURE ; STICKING ; AGGLOMERATION ; BEHAVIOR ; INCINERATION ; COMBUSTION
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000319370500017
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13653
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Univ Sci & Technol Beijing, Key Lab Ecol & Recycle Met, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Zhong, Yiwei,Wang, Zhi,Guo, Zhancheng,et al. Prevention of agglomeration/defluidization in fluidized bed reduction of Fe2O3 by CO: The role of magnesium and calcium oxide[J]. POWDER TECHNOLOGY,2013,241(0):142-148.
APA Zhong, Yiwei,Wang, Zhi,Guo, Zhancheng,&Tang, Qing.(2013).Prevention of agglomeration/defluidization in fluidized bed reduction of Fe2O3 by CO: The role of magnesium and calcium oxide.POWDER TECHNOLOGY,241(0),142-148.
MLA Zhong, Yiwei,et al."Prevention of agglomeration/defluidization in fluidized bed reduction of Fe2O3 by CO: The role of magnesium and calcium oxide".POWDER TECHNOLOGY 241.0(2013):142-148.
Files in This Item:
File Name/Size DocType Version Access License
Prevention of agglom(998KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhong, Yiwei]'s Articles
[Wang, Zhi]'s Articles
[Guo, Zhancheng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhong, Yiwei]'s Articles
[Wang, Zhi]'s Articles
[Guo, Zhancheng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhong, Yiwei]'s Articles
[Wang, Zhi]'s Articles
[Guo, Zhancheng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.