Increase in polycyclic aromatic hydrocarbon (PAH) emissions due to briquetting: A challenge to the coal briquetting policy
Increase in polycyclic aromatic hydrocarbon (PAH) emissions due to briquetting: A challenge to the coal briquetting policy
复制标题
压块导致多环芳烃（PAH）排放量增加：对煤炭压块政策的挑战
DOI：
10.1016/j.envpol.2015.04.012
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发表时间：
2015-09-01
影响因子：
8.9
通讯作者：
Zhang, Gan
中科院分区：
文献类型：
--
作者：
Chen, Yingjun;Zhi, Guorui;Zhang, Gan
中国和联合国环境规划署都建议在家庭领域用型煤替代原煤作为清洁煤技术（CCT），颗粒物和黑碳排放量的减少也证实了这一点。然而，清洁效果从未被多环芳烃（PAH）等其他污染物系统地检验过。在本研究中，将 5 种不同地质成熟度的煤炭加工成块状和煤块，并在 3 个典型煤炉中燃烧，以测量颗粒结合多环芳烃的排放因子 (EF)。结果发现，型煤中 16 种母体 PAH、26 种硝化 PAH、6 种氧化 PAH 和 8 种烷基化 PAH 的 EF 分别为 6.90 +/- 7.89、0.04 +/- 0.03、0.65 +/- 0.40 和 72.78 +/- 18.23 mg/kg，约为3.1、3.7、1.9 和 171 倍 分别用于煤块。 PAH 排放量的大幅增加增加了人类健康风险，并对 CCT 政策提出了挑战。 (C) 2015 Elsevier Ltd. 保留所有权利。
Both China and UNEP recommend replacing raw coal chunks with coal briquettes in household sector as clean coal technology (CCT), which has been confirmed by the decreased emissions of particulate matter and black carbon. However, the clean effect has never been systematically checked by other pollutants like polycyclic aromatic hydrocarbons (PAHs). In this study, 5 coals with different geological maturities were processed as both chunks and briquettes and burned in 3 typical coal stoves for the measurement of emission factors (EFs) of particle-bound PAHs. It was found that the EFs of 16 parent PAHs, 26 nitrated PAHs, 6 oxygenated PAHs, and 8 alkylated PAHs for coal briquettes were 6.90 +/- 7.89, 0.04 +/- 0.03, 0.65 +/- 0.40, and 72.78 +/- 18.23 mg/kg, respectively, which were approximately 3.1, 3.7, 1.9, and 171 times those for coal chunks, respectively. Such significant increases in PAH emissions increased human health risk and challenged the policy of CCT. (C) 2015 Elsevier Ltd. All rights reserved.