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Removal of sulfur in coke oven gas by mixing ZnO-based additive into coal
Alternative TitleTrans. Nonferrous Met. Soc. China
Guo, ZC; Tang, HQ; Ye, SF
2001-12-01
Source PublicationTRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN1003-6326
Volume11Issue:6Pages:931-936
AbstractA new technology for recycling EAF dust and removal of sulfur from coking oven gas was investigated. The new technology does not need to set up special equipment to treat COG (coke oven gas), and it is only acquired by mixing the Zno-base additive into the coke coal. In the stage of pyrolysis of the coal volatile, ZnO of the additive combines with H2S, CS2, COS and C2H2SH of coal gas, forming ZnS in coal char. In the stage of coking of the coal char, Zn is gasified with S, then the gas Zn react with H2S, CS2, COS and C2H2SH, forming ZnS in coal gas and depositing as dust. After the collected ZnS dust was regenerated, it can be recycling as the additive again. The sulfur in coal gas can be completely removed if the mole ratio of the added Zn to the volatilized S is more than 1, and the sulfur in coke is also slightly decreased comparing with the coke without the additive. The EAF dust containing ZnO and Fe2O3 can be the base material of the desulfurizing additive.; A new technology for recycling EAF dust and removal of sulfur from coking oven gas was investigated. The new technology does not need to set up special equipment to treat COG (coke oven gas), and it is only acquired by mixing the Zno-base additive into the coke coal. In the stage of pyrolysis of the coal volatile, ZnO of the additive combines with H2S, CS2, COS and C2H2SH of coal gas, forming ZnS in coal char. In the stage of coking of the coal char, Zn is gasified with S, then the gas Zn react with H2S, CS2, COS and C2H2SH, forming ZnS in coal gas and depositing as dust. After the collected ZnS dust was regenerated, it can be recycling as the additive again. The sulfur in coal gas can be completely removed if the mole ratio of the added Zn to the volatilized S is more than 1, and the sulfur in coke is also slightly decreased comparing with the coke without the additive. The EAF dust containing ZnO and Fe2O3 can be the base material of the desulfurizing additive.
KeywordSulfur Removal Coal Gas Coking Sulfur Sorbent Eaf Dust
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000172554300030
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5784
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Guo, ZC,Tang, HQ,Ye, SF. Removal of sulfur in coke oven gas by mixing ZnO-based additive into coal[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2001,11(6):931-936.
APA Guo, ZC,Tang, HQ,&Ye, SF.(2001).Removal of sulfur in coke oven gas by mixing ZnO-based additive into coal.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,11(6),931-936.
MLA Guo, ZC,et al."Removal of sulfur in coke oven gas by mixing ZnO-based additive into coal".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 11.6(2001):931-936.
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