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
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, such as carbon content, volatile content, O/C molar ratio, H/C molar ratio etc. in the raw coal, and the total content of seventeen PAHs.
出处
《热力发电》
CAS
北大核心
2003年第4期5-8,共4页
Thermal Power Generation
