摘要
用柱色谱分离、ＧＣ／ＭＳ分析云南先锋和金所褐煤甲苯（或二甲苯）超临界流体抽提（ＳＣＦＥ）产物油段分中芳烃馏分的组成结构，鉴定出联苯、联苄型结构及它们的烷基衍生物为主要组成部分，菲、芴、芘、荧蒽、苯并芘等多环缩合芳烃的量较少，有较丰富的芳构化五环萜类，包括从三环至五环芳构化的化合物。这些结果反映了多环芳烃成煤过程中的演变情况，可为煤化学研究提供重要的信息。
The aromatic fractions of supercritical fluid(SCF)extracts of Xianfen Ligniteand Jinsuo Lignite from Yunnan Province were characterized by chromatographic separationcombined with GC/MS technique. The results showed that biphenyl, bibenzyl and theiralkvl substitued derivatives were the main components of these aromatic fractions; Polynu-clear aromatic hydrocarbons (PAHs)such as phenanthrene , fluorene,pyrene, flurantheneand benzopyrene were presented in small amount. In addition, a large number of aromaticpentacyclic triterpenoids which contained 3 to 5 rings aromatized compounds were also de-tected. This fact indicated the geochemical mechanism for the conversion of natural triter-penoids into PAHs,it could provide some important informations on coal science.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
1994年第4期418-426,共9页
Journal of Fuel Chemistry and Technology
基金
中国科学院有机地球化学国家重点实验室和煤转化国家重点实验室的资助
关键词
褐煤
超临界流体
多环芳烃
结构表征
萃取
Lignite, supercritical fluid extraction, polynuclear aromatic hydrocarbon,GC/MS
