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Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent
Li, Xin1; Hui, Helong1; Li, Songgeng1; He, Lu1; Cui, Lijie2
2016-06-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume24Issue:6Pages:811-817
AbstractAn integrated coal pyrolysis process with iron ore reduction is proposed in this article. As the first step, iron oxide reduction is studied in a fixed bed reactor using simulated coal pyrolysis gas with benzene as a model tar compound. Variables such as reduction temperature, reduction time and benzene concentration are studied. The carbon deposition of benzene results in the retarded iron reduction at low temperatures. At high temperatures over 800 degrees C, the presence of benzene in the gas can promote iron reduction. The metallization can reach up to 99% in 20 min at 900 degrees C in the presence of benzene. Significant increases of hydrogen and CO/CO2 ratio are observed in the gas. It is indicated that iron reduction is accompanied by the reforming and decomposition of benzene. The degree of metallization and reduction increases with the increasing benzene concentration. Iron oxide can nearly completely be converted into cementite with benzene present in the gas under the experimental conditions. No sintering is found in the reduced sample with benzene in the gas. (C) 2015 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
KeywordCoal Pyrolysis Iron Reduction Integration Tar Effect
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cjche.2015.12.020
Indexed BySCI
Language英语
WOS KeywordTAR DECOMPOSITION ; TEMPERATURE ; COMPOUND ; REACTOR ; BED
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science of Foundation of China ; Shenhua Group Cooperation Limited(51174284)
WOS IDWOS:000379565400015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21242
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
Li, Xin,Hui, Helong,Li, Songgeng,et al. Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2016,24(6):811-817.
APA Li, Xin,Hui, Helong,Li, Songgeng,He, Lu,&Cui, Lijie.(2016).Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent.CHINESE JOURNAL OF CHEMICAL ENGINEERING,24(6),811-817.
MLA Li, Xin,et al."Integration of coal pyrolysis process with iron ore reduction: Reduction behaviors of iron ore with benzene-containing coal pyrolysis gas as a reducing agent".CHINESE JOURNAL OF CHEMICAL ENGINEERING 24.6(2016):811-817.
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