Variations in concentrations and compositions of polycyclic aromatic hydrocarbons (PAHs) in coals related to the coal rank and origin
Variations in concentrations and compositions of polycyclic aromatic hydrocarbons (PAHs) in coals related to the coal rank and origin
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DOI：
10.1016/j.envpol.2011.05.032
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发表时间：
2011-10-01
影响因子：
8.9
通讯作者：
Hofmann, T.
中科院分区：
文献类型：
--
作者：
Laumann, S.;Micic, V.;Hofmann, T.
未燃烧的煤颗粒和相关的多环芳烃（PAHs）的释放可能会对环境造成不利影响。本研究评估了来自全球11个煤盆地的50个煤样中多环芳烃的浓度和组成的变化。在高挥发性沥青等级的最大PAH浓度记录在一个单一的盆地的样品。考虑到整个样本集，最高的PAH浓度实际上是在这个等级范围之外发现的，这表明煤的显微组分组成，从而煤的起源也影响PAH浓度。多环芳烃组成的检查表明，烷基化的2-3环多环芳烃仍然占主导地位的化合物，无论煤阶或起源。多变量分析的基础上PAH和显微组分含量，散装和成熟度参数允许识别7组不同级别和原产地的煤样集内。(C)2011爱思唯尔有限公司保留所有权利。
The release of unburnt coal particles and associated polycyclic aromatic hydrocarbons (PAHs) may cause adverse impacts on the environment. This study assessed variations in the concentration and composition of PAHs in a set of fifty coal samples from eleven coal basins worldwide. The maximum PAH concentrations at high volatile bituminous rank were recorded in samples from a single basin. Considering the entire sample set, the highest PAH concentrations were in fact found outside of this rank range, suggesting that the maceral composition and thus the coal's origin also influenced PAH concentrations. The examination of the PAH compositions revealed that alkylated 2-3 ring PAHs remain dominant compounds irrespective of coal rank or origin. Multivariate analysis based on PAH and maceral content, bulk and maturity parameters allowed the recognition of seven groups with different rank and origin within the coal sample set. (C) 2011 Elsevier Ltd. All rights reserved.