期刊
ENVIRONMENTAL POLLUTION
卷 212, 期 -, 页码 1-8出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2016.01.041
关键词
PAHs; Oxy-PAHs; Emission factor; Residential coal; Coal stove
资金
- Fundamental Research Funds for the Central Universities
- National Natural Science Foundation of China [41473091, 41273135, 41173098, 41373131]
To evaluate the influence of coal property and stove efficiency on the emissions of parent polycyclic aromatic hydrocarbons (pPAHs) and oxygenated PAHs (oPAHs) during the combustion, fifteen coal/stove combinations were tested in this study, including five coals of different geological maturities in briquette and chunk forms burned in two residential stoves. The emission factors (EFs) of pPAHs and oPAHs were in the range of 0.129-16.7 mg/kg and 0.059-0.882 mg/kg, respectively. The geological maturity of coal significantly affected the emissions of pPAHs and oPAHs with the lower maturity coals yielding the higher emissions. The chunk-to-briquette transformation of coal dramatically increased the emissions of pPAHs and oPAHs during the combustion of anthracite, whereas this transformation only elevated the emissions of high molecular weight PAHs for bituminous coals. The influence of stove type on the emissions of pPAHs and oPAHs was also geological-maturity-dependent. High efficiency stove significantly reduced the emissions of PAHs from those relatively high-maturity coals, but its influences on low-maturity coals were inconstant. (C) 2016 Elsevier Ltd. All rights reserved.
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