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Competition of Oxygen Evolution and Desulfurization for Bauxite Electrolysis
Gong, Xuzhong1,2; Wang, Zhi1; Zhao, Lixin3; Zhang, Shu4; Wang, Dong1; Wang, Mingyong1
2017-05-31
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
ISSN0888-5885
Volume56Issue:21Pages:6136-6144
Abstract

To understand the relationship between oxygen evolution and desulfurization for bauxite electrolysis, the apparent activation energy of the anode reaction was examined by analyzing the polarization curves. The results showed that the apparent activation energy of the anode reaction for bauxite electrolysis with a low slurry concentration was lower than that of water electrolysis, indicating that the bauxite particles had some microcell disturbance effects on liquid diffusion. As expected, it was also lower than that of bauxite electrolysis with a high slurry concentration, indicating that the bauxite particles had some inhibition effects on oxygen evolution. Compared with adding bauxite, the increase in stirring speed did not change the concentration polarization of water electrolysis, indicating that the microcell disturbance effect of the bauxite particles was more important. Compared with the low slurry concentration electrolysis, the high slurry concentration electrolysis resulted in a low desulfurization ratio and high current efficiency during bauxite electrolysis.

SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/acsiecr.7b00069
Indexed BySCI
Language英语
WOS KeywordSlurry Bws Electrolysis ; Waste-water Treatment ; Catalytic-oxidation ; Sulfur Removal ; Hydrogen-production ; Pyrite Oxidation ; Organic Sulfur ; Ionic Liquid ; Coal ; Kinetics
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNatural Science Foundation of China(51474198 ; Youth Innovation Promotion Association ; Chinese Academy of Science(2015036) ; 51422405)
WOS IDWOS:000402690800005
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22646
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, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Tianjin Univ Technol, Dept Environm Sci & Safety Engn, Tianjin 300384, Peoples R China
4.Curtin Univ Technol, Fuels & Energy Technol Inst, GPO Box U1987, Perth, WA 6845, Australia
Recommended Citation
GB/T 7714
Gong, Xuzhong,Wang, Zhi,Zhao, Lixin,et al. Competition of Oxygen Evolution and Desulfurization for Bauxite Electrolysis[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2017,56(21):6136-6144.
APA Gong, Xuzhong,Wang, Zhi,Zhao, Lixin,Zhang, Shu,Wang, Dong,&Wang, Mingyong.(2017).Competition of Oxygen Evolution and Desulfurization for Bauxite Electrolysis.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,56(21),6136-6144.
MLA Gong, Xuzhong,et al."Competition of Oxygen Evolution and Desulfurization for Bauxite Electrolysis".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 56.21(2017):6136-6144.
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