三种不同中国煤中多环芳烃的分布特征研究  

Study on Distribution of Polycyclic Aromatic Hydrocarbons in Three Different Raw Coals in China

作　　者：金保升[1] 周宏仓[1] 仲兆平[1] 肖睿[1] 党小剑[1] 

机构地区：[1]东南大学洁净煤发电与燃烧技术教育部重点实验室,热能工程研究所江苏南京210096

出　　处：《锅炉技术》2004年第1期1-4,共4页Boiler Technology

基　　金：国家重点基础研究发展规划项目子课题(G19990 2 2 10 53) ;教育部跨世纪优秀人才基金资助项目 (K980 0 2 6)

摘　　要：对 3种不同原煤用二氯甲烷作萃取剂经索氏提取和K -D浓缩 ,采用硅胶柱层析纯化 ,利用高效液相色谱法 (HPLC)分别对上述提取液中的 16种多环芳烃 (PAHs)进行了定性、定量测定 ,研究了不同煤种多环芳烃的分布。结果表明 ,3种原煤中的PAHs以三环、四环和五环PAHs为主 ,并且煤级越高 ,PAHs的总量越少 ;另外 。After samples were extracted by the Soxhlet extrac t or with methylene chloride, concentrated by the K-D concentrator, and then puri fied by silica gel technique, the 16 US EPA specified polycyclic aromatic hydroc arbons(PAHs) in 3 Chinese raw coals were analyzed by high performance liquid chr omatographic(HPLC). The distribution characteristics of 16 PAHs in 3 coals were also investigated. Experimental results show that there are mainly 3-to 5-ring ed PAHs in 3 raw coals, the higher coal rank, the lower the concentration of PAH s. In addition, there have some correlations between the concentration of PAHs a nd carbon content, H/C mole ratio, O/C mole ratio, and volatile content.

关 键 词：原煤 多环芳烃 分布特征 高效液相色谱 

分 类 号：TQ531[化学工程—煤化学工程]