| DOI: | 10.1016/j.atmosenv.2017.05.015
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| Scopus记录号: | 2-s2.0-85019404866
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| 论文题名: | Atmospheric emission of mercury due to combustion of steam coal and domestic coal in China |
| 作者: | Wang S; , Luo K
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| 刊名: | Atmospheric Environment
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| ISSN: | 0168-2563
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| EISSN: | 1573-515X
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| 出版年: | 2017
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| 卷: | 162 | | 起始页码: | 45
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| 结束页码: | 54
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| 语种: | 英语
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| 英文关键词: | Atmospheric emission
; Domestic coal-stove
; Mercury
; Spontaneous combustion of coal gangue
; Steam coal
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| Scopus关键词: | Ash handling
; Ashes
; Atmospheric spectra
; Boilers
; Coal
; Coal ash
; Coal tailings
; Desulfurization
; Electrostatic precipitators
; Energy utilization
; Engines
; Flue gases
; Fly ash
; Fossil fuel power plants
; Gas plants
; Industrial emissions
; Industrial plants
; Industrial stoves
; Mercury (metal)
; Particulate emissions
; Spontaneous combustion
; Steam
; Steam power plants
; Stoves
; Thermoelectric power plants
; Atmospheric emission
; Flue gas desulphurisation
; Industrial boilers
; Mass distribution
; Spontaneous combustion of coals
; Steam coal
; Thermal power plants
; Wet flue gas desulfurization
; Coal combustion
; coal
; mercury
; bottom ash
; coal combustion
; domestic waste
; fly ash
; gangue
; heating
; mercury (element)
; power generation
; thermal power
; Article
; atmosphere
; boiler
; bottom ash
; China
; combustion
; desulfurization
; electric power plant
; fly ash
; heating
; mine tailings
; priority journal
; water vapor
; China
; Shaanxi
; Shandong
; Shanxi
; Yunnan
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| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
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| 英文摘要: | To study the mercury emission due to the combustion of steam coal and domestic coal in China, we analyzed the mercury contents of coal, fly ash, bottom ash and sluicing water in thermal power plants, steam boilers as well as domestic coal-stoves, in Shaanxi, Shanxi, Shandong and Yunnan Provinces. This study conduct an estimate of the Hg emission rates from steam coal and domestic coal combustion based on the method of mass distribution ratio of fly ash and bottom ash. The results show that the Hg emission rate of coal combustion in thermal power plants is about 50.21% (electrostatic precipitators + wet flue gas desulfurization), and that in heating boilers is about 67.23%, and 92.28% in industrial boilers without flue gas desulphurisation equipment. Furthermore, Hg emission rate is 83.61% due to domestic coal combustion in coal-stoves. The Hg emission amount into the atmosphere from power and heat generation, industrial boilers, domestic coal-stoves and spontaneous combustion of coal gangue is roughly estimated to be 133 ± 4, 100 ± 17, 11 ± 0.1 and 47 ± 26 tons in China in 2014, respectively, and the total Hg emission amount from this paper is estimated at 292 tons. The trends of Hg emission in China from 1991 to 2014 show an accelerating growth after 2002. The proportion of mercury emission due to thermal power, heating generation and industrial energy utilization continuously increased. The atmospheric emission of mercury due to combustion of steam coal, domestic coal and coal gangue accounts nearly 50% in total anthropogenic Hg emissions in China, indicating one of the largest sources of Hg emission in China which should draw more public and scientific attention in the future. © 2017 Elsevier Ltd |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/82771
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| Appears in Collections: | 气候变化事实与影响
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作者单位: | Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
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| Recommended Citation: | |
Wang S,, Luo K. Atmospheric emission of mercury due to combustion of steam coal and domestic coal in China[J]. Atmospheric Environment,2017-01-01,162
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