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Influence of different types of coals and stoves on the emissions of parent and oxygenated PAHs from residential coal combustion in China

机译：不同类型的煤和火炉对中国居民燃煤中母体和含氧多环芳烃排放的影响

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摘要

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.
机译：为了评估煤的性质和炉灶效率对燃烧过程中母体多环芳烃（pPAHs）和含氧PAHs（oPAHs）排放的影响，本研究测试了15种煤/炉组合，包括5种不同地质成熟度的煤。在两个住宅炉灶中燃烧的煤饼和块状形式。 pPAHs和oPAHs的排放因子（EFs）分别在0.129-16.7 mg / kg和0.059-0.882 mg / kg的范围内。煤的地质成熟度显着影响了pPAHs和oPAHs的排放，成熟度越低的煤排放就越高。煤的块状转化为无烟煤燃烧过程中，pPAHs和oPAHs的排放量显着增加，而这种转化仅增加了烟煤的高分子量PAHs的排放量。炉子类型对pPAHs和oPAHs排放的影响也取决于地质成熟度。高效炉灶显着减少了那些相对高饱和度煤的PAHs排放，但对低饱和度煤的影响却不大。 （C）2016 Elsevier Ltd.保留所有权利。

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