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Mercury emission from sintering process in the iron and steel industry of China
Xu, Wenqing1,2; Shao, Mingpan1; Yang, Yang1,3; Liu, Ruihui1; Wu, Yinghong1,3; Zhu, Tingyu1,2

Iron and steel production is one of the most significant anthropogenic sources of atmospheric mercury emission. However, there is little information about this source in China. In this study, we focused on three typical Chinese sintering furnace processes. Mercury in flue gas was sampled using the EPA Method 30B and Ontario Hydro Method, and solid samples were also analyzed. We found that 1.12-4.66% of mercury input in sintering furnace processes was emitted into the atmosphere. The total mercury concentrations in the sintering furnace flue gas were 17.773, 31.765 and 18.275 mu g/m(3); the major mercury species was oxidized form, which accounted for 73.4-94.7% of the total mercury. The mercury concentrations in the stack flue gas were 0.373, 0.533 and 0.465 mu g/m(3), while its removal efficiencies by air pollution control devices (APCDs) were 97.5%, 81.1% and 96.8%, and its emission factors were 2.49, 2.71 and 1.28 mg/t sinter. The main mercury inputs were iron ore, coal, coke and lime, where the iron ore input was 74.84-92.22% of the total mercury quantity. Moreover, mercury was distributed in fly ash (19.22-81.54%), gypsum (13.29-46.00%), iron ore sinter (0-11.45%), and flue gas (1.12-4.66%). An approximate mercury mass balance could be obtained from various samples in this study. (C) 2017 Elsevier B.V. All rights reserved.

KeywordHg Emission Speciation Removal Efficiency Distribution
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS KeywordFired Power-plants ; Calcium-based Sorbents ; Flue-gas ; Anthropogenic Sources ; Coal Combustion ; Fly-ash ; Speciation ; Behavior ; Atmosphere ; Pollution
WOS Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Energy & Fuels ; Engineering, Chemical
Funding OrganizationPublic Benefit Industries from the National Basic Research Program (973) of China(2013CB430005) ; National Ministry of Environmental Protection(201309018)
WOS IDWOS:000397353800036
Citation statistics
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Res Ctr Proc Pollut Control, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xu, Wenqing,Shao, Mingpan,Yang, Yang,et al. Mercury emission from sintering process in the iron and steel industry of China[J]. FUEL PROCESSING TECHNOLOGY,2017,159:340-344.
APA Xu, Wenqing,Shao, Mingpan,Yang, Yang,Liu, Ruihui,Wu, Yinghong,&Zhu, Tingyu.(2017).Mercury emission from sintering process in the iron and steel industry of China.FUEL PROCESSING TECHNOLOGY,159,340-344.
MLA Xu, Wenqing,et al."Mercury emission from sintering process in the iron and steel industry of China".FUEL PROCESSING TECHNOLOGY 159(2017):340-344.
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