DOI: 10.1016/j.atmosenv.2017.06.033
Scopus记录号: 2-s2.0-85021637622
论文题名: Time-resolved analysis of particle emissions from residential biomass combustion – Emissions of refractory black carbon, PAHs and organic tracers
作者: Nielsen I ; E ; , Eriksson A ; C ; , Lindgren R ; , Martinsson J ; , Nyström R ; , Nordin E ; Z ; , Sadiktsis I ; , Boman C ; , Nøjgaard J ; K ; , Pagels J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 165 起始页码: 179
结束页码: 190
语种: 英语
英文关键词: Black carbon
; Levoglucosan
; PAHs
; Residential biomass combustion
; SP-AMS
Scopus关键词: Aerosols
; Aromatic compounds
; Aromatic hydrocarbons
; Aromatization
; Climate models
; Combustion
; Housing
; Hydrocarbons
; Mass spectrometry
; Organic carbon
; Particulate emissions
; Refractory materials
; Sugars
; Absorption enhancement
; Aerosol mass spectrometry
; Biomass combustion
; Black carbon
; Combustion temperatures
; Levoglucosan
; Low-temperature pyrolysis
; Time-resolved analysis
; Polycyclic aromatic hydrocarbons
; black carbon
; levoglucosan
; organic compound
; polycyclic aromatic hydrocarbon
; tracer
; absorption
; aerosol
; black carbon
; climate effect
; combustion
; low temperature
; organic compound
; PAH
; particle size
; particulate matter
; pyrolysis
; source apportionment
; spectrometer
; tracer
; aerosol
; Article
; biomass
; carbon footprint
; chemical composition
; combustion
; heat
; low temperature
; mass spectrometry
; particle size
; particulate matter
; priority journal
; pyrolysis
; temperature
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: Time-resolved particle emissions from a conventional wood stove were investigated with aerosol mass spectrometry to provide links between combustion conditions, emission factors, mixing state of refractory black carbon and implications for organic tracer methods. The addition of a new batch of fuel results in low temperature pyrolysis as the fuel heats up, resulting in strong, short-lived, variable emission peaks of organic aerosol-containing markers of anhydrous sugars, such as levoglucosan (fragment at m/z 60). Flaming combustion results in emissions dominated by refractory black carbon co-emitted with minor fractions of organic aerosol and markers of anhydrous sugars. Full cycle emissions are an external mixture of larger organic aerosol-dominated and smaller thinly coated refractory black carbon particles. A very high burn rate results in increased full cycle mass emission factors of 66, 2.7, 2.8 and 1.3 for particulate polycyclic aromatic hydrocarbons, refractory black carbon, total organic aerosol and m/z 60, respectively, compared to nominal burn rate. Polycyclic aromatic hydrocarbons are primarily associated with refractory black carbon-containing particles. We hypothesize that at very high burn rates, the central parts of the combustion zone become air starved, leading to a locally reduced combustion temperature that reduces the conversion rates from polycyclic aromatic hydrocarbons to refractory black carbon. This facilitates a strong increase of polycyclic aromatic hydrocarbons emissions. At nominal burn rates, full cycle emissions based on m/z 60 correlate well with organic aerosol, refractory black carbon and particulate matter. However, at higher burn rates, m/z 60 does not correlate with increased emissions of polycyclic aromatic hydrocarbons, refractory black carbon and organic aerosol in the flaming phase. The new knowledge can be used to advance source apportionment studies, reduce emissions of genotoxic compounds and model the climate impacts of refractory black carbon, such as absorption enhancement by lensing. © 2017 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82536
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Science, Aarhus University, Box 358, Roskilde, Denmark; Arctic Research Centre, Aarhus University, Aarhus, Denmark; Division of Ergonomics and Aerosol Technology, Lund University, Box 118, Lund, Sweden; Division of Nuclear Physics, Lund University, Box 118, Lund, Sweden; Thermochemical Energy Conversion Laboratory, Umeå University, Umeå, Sweden; Centre for Environmental and Climate Research, Ecology Building, Lund University, Lund, Sweden; Department of Environmental Science and Analytical Chemistry, Stockholm University, Sweden
Recommended Citation:
Nielsen I,E,, Eriksson A,et al. Time-resolved analysis of particle emissions from residential biomass combustion – Emissions of refractory black carbon, PAHs and organic tracers[J]. Atmospheric Environment,2017-01-01,165