抚顺镜煤和树脂煤CS_2可溶物的族组成和萃取  

Group Compositions of CS_2-Soluble Fractions from Vitrinite and Resinite of Fushun Coal and Extraction

作　　者：张玉贵[1] 王宝俊[1] 田亚峻[1] 谢克昌[1] 魏贤勇[2] 

机构地区：[1]太原理工大学一碳化学与化工国家重点实验室,山西太原030024 [2]中国矿业大学化学工程学院,江苏徐州221008

出　　处：《中国矿业大学学报》2003年第3期267-269,273,共4页Journal of China University of Mining & Technology

基　　金：国家重点基础研究专项经费资助项目 ( G19990 2 2 10 1)

摘　　要：用 CS2 对抚顺镜煤和树脂煤进行了索氏萃取 ,并用柱层析法对萃取物进行了族组分分离 ,研究了萃取物的族组成和萃取动力学特征。实验结果表明 :树脂煤的萃取率远高于镜煤 ,萃取物中烷烃和芳烃含量较高 ,而镜煤萃取物主要为非烃 ;其萃取过程可分为两个阶段 ,第一阶段速率比第二阶段速率大一个数量级 ;煤中低分子化合物有游离态、吸附态和共溶态三种赋存形式。Soxhlet extractions of vitrinite and resinite of Fushun coal were conducted using CS 2 as a solvent. The resulting extracts were separated into different group compositions by column chromatography. The group compositions and extraction kinetics of vitrinite and resinite were investigated. The experimental results show that the extraction yield of resinite is much higher than that of vitrinite, the extracted products of resinite mainly consists of alkyl and aromatic hydrocarbon while that of vitrinite mainly consists of non hydrocarbons. The extraction process can be described by two first order stages, the rate of first stage is one order greater in magnitude than that of the second stage. The low molecular weight substance contained in coal has three modes of presence, including free, absorbent, and co soluble, which might lead to different kinetic stages.

关 键 词：抚顺镜煤 树脂煤 索氏萃取 柱层析法 族组成 萃取动力学 赋存形式 溶剂萃取 

分 类 号：TQ531.5[化学工程—煤化学工程]