DOI: 10.1016/j.atmosenv.2015.06.013
Scopus记录号: 2-s2.0-84936803619
论文题名: NO<inf>x</inf> and SO<inf>2</inf> emissions of coals, biomass and their blends under different oxy-fuel atmospheres
作者: Moroń W ; , Rybak W
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 116 起始页码: 65
结束页码: 71
语种: 英语
英文关键词: Biomass
; Blends
; Coal
; Combustion
; Emission
; Oxy-fuel
Scopus关键词: Biomass
; Blending
; Coal
; Combustion
; Exhaust gases
; Fog
; Fuels
; Gases
; Mixing
; Neutron emission
; Nitrogen
; Patient monitoring
; Sulfur
; Waste incineration
; Combustion condition
; Combustion technique
; Entrained Flow Reactor
; Gaseous pollutants
; Oxy-fuels
; Oxyfuel combustion
; Oxygen enriched atmosphere
; Set-point temperatures
; Coal combustion
; carbon dioxide
; coal
; fuel
; nitric oxide
; nitrogen
; sulfur
; sulfur dioxide
; atmospheric pollution
; biomass
; carbon dioxide
; carbon emission
; coal-fired power plant
; combustion
; emission control
; fossil fuel
; nitrous oxide
; oxic conditions
; pollution monitoring
; sulfur dioxide
; air pollutant
; air pollution
; Article
; atmosphere
; biomass
; combustion
; priority journal
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: Co-firing biomass and coal under oxy-fuel combustion holds the potential for negative CO2 emission into the atmosphere and is a promising technology to realized atmospheric CO2 reduction and NOx and SO2 emission. NOx and SO2 emission and control is a relevant element of combustion of fossil fuels and subject to strict supervision and monitoring. The implementation of combustion techniques in the oxygen-enriched atmosphere makes it necessary to get to know the oxy atmosphere, its impact and changes of combustion conditions onto the process of emissions of gaseous pollutants. NOx and SO2 emissions have been investigated for different atmosphere in Entrained Flow Reactor. Experiments co-firing hard and brown coals, wood and straw pellets, and selected mixtures of these under three different atmospheres: air, oxy with recirculation of dry and wet exhaust gases. The reactor set point temperature was held constant at 1000°C, NOx and SO2 emission levels were measured as a function of air excess ratio. The effect of fuel mixing, fuel nitrogen and fuel sulphur content on the conversion of fuel nitrogen to NOx and fuel sulphur to SO2 is also reported and discussed. The results obtained under oxy-fuel atmospheres were compared with those attained in air. The replacement of CO2 by 10% of steam in the oxy-fuel combustion atmospheres was also evaluated in order to study the wet recirculation of flue gas. The emissions of NOx and SO2 during oxy-fuel combustion were lower than under air-firing. Fuel mixing has a positive influence on the NOx and SO2 emission level. Emissions of NOx and SO2 were significantly reduced by the addition of biomass to the coal, but the addition of biomass can also increase the NO emissions, it depends on the fuels nitrogen content. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81579
Appears in Collections: 气候变化事实与影响
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作者单位: Wrocław University of Technology, Faculty of Mechanical and Power Engineering, Wrocław, Poland
Recommended Citation:
Moroń W,, Rybak W. NO<inf>x</inf> and SO<inf>2</inf> emissions of coals, biomass and their blends under different oxy-fuel atmospheres[J]. Atmospheric Environment,2015-01-01,116