DOI: 10.1016/j.atmosenv.2015.08.046
Scopus记录号: 2-s2.0-84941273881
论文题名: Effect of selective catalytic reduction (SCR) on fine particle emission from two coal-fired power plants in China
作者: Li Z ; , Jiang J ; , Ma Z ; , Wang S ; , Duan L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 227
结束页码: 233
语种: 英语
英文关键词: Ammonium sulfate
; Coal-fired power plant
; Emission factor
; PM2.5
; Selective catalytic reduction (SCR)
; Water-soluble inorganic ion
Scopus关键词: Aerosols
; Air pollution control
; Catalytic oxidation
; Coal
; Coal fueled furnaces
; Fire tube boilers
; Fossil fuel power plants
; Mining
; Nitrogen oxides
; Pollution control
; Reduction
; Ammonium Sulfate
; Coal-fired power plant
; Concentration reduction
; Emission abatement
; Emission factors
; Emission inventories
; Fine particulate matter
; Inorganic ions
; Selective catalytic reduction
; ammonia
; ammonium sulfate
; nitrate
; nitrogen oxide
; oxide
; sulfate
; sulfur dioxide
; sulfur oxide
; ammonium sulfate
; atmospheric pollution
; catalysis
; coal-fired power plant
; emission inventory
; nitrogen oxides
; oxidation
; particulate matter
; policy making
; pollution control
; reduction
; aerosol
; air pollution control
; Article
; atmosphere
; catalysis
; chemical composition
; China
; coal fired power plant
; concentration (parameters)
; electric power plant
; oxidation
; particle size
; particulate matter
; priority journal
; reduction
; selective catalytic reduction
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Nitrogen oxides (NOx) emission abatement of coal-fired power plants (CFPPs) requires large-scaled installation of selective catalytic reduction (SCR), which would reduce secondary fine particulate matter (PM2.5) (by reducing nitrate aerosol) in the atmosphere. However, our field measurement of two CFPPs equipped with SCR indicates a significant increase of SO4 2- and NH4 + emission in primary PM2.5, due to catalytic enhancement of SO2 oxidation to SO3 and introducing of NH3 as reducing agent. The subsequent formation of (NH4)2SO4 or NH4HSO4 aerosol is commonly concentrated in sub-micrometer particulate matter (PM1) with a bimodal pattern. The measurement at the inlet of stack also showed doubled primary PM2.5 emission by SCR operation. This effect should therefore be considered when updating emission inventory of CFPPs. By rough estimation, the enhanced primary PM2.5 emission from CFPPs by SCR operation would offset 12% of the ambient PM2.5 concentration reduction in cities as the benefit of national NOx emission abatement, which should draw attention of policy-makers for air pollution control. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81501
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China; State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex, Tsinghua University, Beijing, China; Air Environmental Modeling and Pollution Controlling Key Laboratory of Sichuan Education Institutes, College of Resources and Environment, Chengdu University of Information Technology, Chengdu, China; Collaborative Innovation Centre for Regional Environmental Quality, Tsinghua University, Beijing, China
Recommended Citation:
Li Z,, Jiang J,, Ma Z,et al. Effect of selective catalytic reduction (SCR) on fine particle emission from two coal-fired power plants in China[J]. Atmospheric Environment,2015-01-01,120