气候变化领域集成服务门户(CCPortal): Different formation mechanisms of PAH during wood and coal combustion under different temperatures

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DOI	10.1016/j.atmosenv.2019.117084
	Different formation mechanisms of PAH during wood and coal combustion under different temperatures
	Han Y.; Chen Y.; Feng Y.; Song W.; Cao F.; Zhang Y.; Li Q.; Yang X.; Chen J.
发表日期	2020
ISSN	1352-2310
卷号	222
英文摘要	Residential solid fuel combustion (RSFC) is a major contributor to polycyclic aromatic hydrocarbons (PAHs) in the atmosphere, which are strongly related to negative health impacts. During RSFC, the variations of PAH emission factors (EFs) and size-resolved profiles are known to be highly affected by fuel type and combustion temperature. In this study, to investigate the behavior of emitted PAH, combustion experiments were performed using three wood and three coal types under different temperatures (500 °C and 800 °C) in a quartz tube furnace. The results show that the average EFs of PAH (17-EPA-PAHs) from low temperature coal combustion were nearly three times higher than those from low temperature wood combustion. However, with high temperature, PAH emissions from wood combustion increased two-fold and that from coal combustion decreased by two orders. Furthermore, And the proportion of high-molecular-weight PAHs (HPAHs) increased with increasing temperature in wood combustion, but decreased in coal combustion. This indicates that PAH synthesis was the dominant process during wood combustion, while pyrolysis of coal supramolecular structure was the main formation pathway of PAH during coal combustion. In addition, more low-molecular-weight PAHs (LPAHs) were emitted, with 0.006 μm–0.050 μm and 0.223 μm–1 μm particles in the early burning stage, while more HPAHs were emitted in the later burning stage, with larger particles in the size range of 0.050 μm–0.223 μm. This means that the PAH formations were different during each burning stage. © 2019 Elsevier Ltd
关键词	Formation mechanism Fuel type PAH Residential solid fuel combustion Size distribution Temperature
语种	英语
scopus关键词	Coal; Fuels; Housing; Molecular weight; Polycyclic aromatic hydrocarbons; Size distribution; Temperature; Wood; Combustion experiments; Combustion temperatures; Formation mechanism; Fuel types; Increasing temperatures; Polycyclic aromatic hydrocarbons (PAHS); Solid fuel combustion; Supramolecular structure; Coal combustion; acenaphthene; acenaphthylene; chrysene; coal; naphthalene; perylene; phenanthrene; polycyclic aromatic hydrocarbon derivative; silicon dioxide; coal combustion; emission; experimental study; formation mechanism; low temperature; PAH; temperature effect; temperature gradient; wood; chemical structure; combustion; Cystinosis indica; fire and fire related phenomena; furnace; high temperature; low temperature; Melia azedarach; molecular weight; nonhuman; particle size; pine; Pinus sekiya; priority journal; pyrolysis; supramolecular chemistry; synthesis; temperature; wood
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249473
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200438, China; State Key Laboratory of Pollution Control and Resources Reuse, Shanghai, 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China; Institute of Environmental Pollution and Health, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China; Yale–NUIST Center on Atmospheric Environment, International Joint Laboratory on Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China; Jiangsu Provincial Key Laboratory of Agricultural Meteorology, College of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China
推荐引用方式 GB/T 7714	Han Y.,Chen Y.,Feng Y.,et al. Different formation mechanisms of PAH during wood and coal combustion under different temperatures[J],2020,222.
APA	Han Y..,Chen Y..,Feng Y..,Song W..,Cao F..,...&Chen J..(2020).Different formation mechanisms of PAH during wood and coal combustion under different temperatures.ATMOSPHERIC ENVIRONMENT,222.
MLA	Han Y.,et al."Different formation mechanisms of PAH during wood and coal combustion under different temperatures".ATMOSPHERIC ENVIRONMENT 222(2020).