【摘要】 本文对七种多环芳烃在五种不同煤中的分布进行了初步研究。结果表明,影响煤中多环芳烃分布的主要因素是煤的变质程度;煤中多环芳烃的种类和含量随煤的变质程度加深而减少。直接影响煤中多环芳烃分布的因素还有煤的化学结构,煤的挥发份含量和煤的C/H比值。更多还原

【Abstract】 The distribution of seven kinds of PAHs in different kinds of China’s coal was studied.From the results obtained, it was found that the main factor affecting the distribution of PAHs in coal is the metamorphic grade of coal: the deeper the metamorphic grade of coal, the lower is the content of PAHs in coal.Besides, the chemical structure, C/H value, and volatile matters of the coal all have direct effect on the distribution of PAHs.更多还原