A PRIMARY STUDY ON THE BEHAVIOR OF PAH CONTENT IN RAW COALS OF CHINA[J]. Thermal power generation, 2003, (4): 5-8. DOI: 10.19666/j.rlfd.2003.04.002.
原煤中多环芳烃含量特性的初步研究
摘要
为了掌握煤燃烧过程中多环芳烃的排放特性
针对我国具有代表性的 5个煤种 2 0个煤样
经过索氏抽提、浓缩、纯化等步骤
对 17种多环芳烃进行了气相色谱的分析测定。在干燥无灰基碳含量 4 5 %~ 90 %之间
于 80 %~ 85 %区域多环芳烃的总量最大。随煤化程度提高
高环芳烃含量呈增加趋势
且原煤中碳含量、挥发分含量、氧碳摩尔比、氢碳摩尔比等参数与 17种多环芳烃的总量存在一定关系
Abstract
In order to know well five coal sorts which have representativeness in China
twenty samples of them were pretreated through steps of Sohxlet extraction
rotate concentration
and column purification etc.
and gas chromatograph analysis and measurement were carried out for seventeen kinds of polycyclic aromatic hydrocarbon (PAH). Results show that the max. total content of PAH appeared in the region 80%~85% of dry and ash free carbon content. Along with upgrading the degree of coalification
the PAH content has tendency to be increased
and a certain relationship exists between coal parameters