CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Exploration of Straw Fiber as Reducing Agent Utilization in Rotary Hearth Furnace Process for Direct Reduced Iron Production
Han, Hongliang1; Duan, Dongping1; Yuan, Peng2
2015-11-01
Source PublicationSTEEL RESEARCH INTERNATIONAL
ISSN1611-3683
Volume86Issue:11Pages:1361-1369
AbstractStraw fiber is a waste obtained by jet milling after extracting valuable substances form corn straw through steam explosion-washing-mechanical carding process. At the same time, it is also a clean and renewable reducing agent. In this study, physical and chemical characteristics of straw fiber were investigated firstly. The usage of straw fiber in rotary hearth furnace process for direct reduced iron production was then discussed. The results show that on one hand, fixed carbon content in straw fiber is low, which is unfavorable for the productivity of direct reduced iron; on the other hand, ash and sulfur content is also low, which improves the quality of direct reduced iron. Besides, the fibrous structure is conducive to improving the pelletizing performance of carbon-containing pellets, thus reducing an additional amount of binder. Compared with common reducing agents, straw fiber provides better reduction effect, and straw fiber carbon-containing pellets possess higher compressive strength and larger volumetric shrinkage, which is beneficial to increase the thickness of the whole material layer in rotary hearth furnace. In addition, these carbon-containing pellets also have advantages of lowering C/O ratio and shortening reduction time. The appropriate C/O and reduction time are 0.8 and 15 min, respectively, and the particle size of straw fiber below 0.15 mm has better reduction effect. This study aims to provide theoretical and technical basis for the utilization of straw fiber in rotary hearth furnace process.
KeywordStraw Fiber Carbon-containing Pellet Reducing Agent Rotary Hearth Furnace Direct Reduced Iron
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1002/srin.201400382
Indexed BySCI
Language英语
WOS KeywordCOMPOSITE PELLETS ; REDUCTION ; OXIDE ; BIOMASS ; COKE
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000363679600014
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19754
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Hebei United Univ, Coll Met & Energy Resources, Tangshan 063009, Hebei, Peoples R China
Recommended Citation
GB/T 7714
Han, Hongliang,Duan, Dongping,Yuan, Peng. Exploration of Straw Fiber as Reducing Agent Utilization in Rotary Hearth Furnace Process for Direct Reduced Iron Production[J]. STEEL RESEARCH INTERNATIONAL,2015,86(11):1361-1369.
APA Han, Hongliang,Duan, Dongping,&Yuan, Peng.(2015).Exploration of Straw Fiber as Reducing Agent Utilization in Rotary Hearth Furnace Process for Direct Reduced Iron Production.STEEL RESEARCH INTERNATIONAL,86(11),1361-1369.
MLA Han, Hongliang,et al."Exploration of Straw Fiber as Reducing Agent Utilization in Rotary Hearth Furnace Process for Direct Reduced Iron Production".STEEL RESEARCH INTERNATIONAL 86.11(2015):1361-1369.
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