文献类型：期刊文献

中文题名：兖州煤环己酮抽提物的组成、结构及性质研究

英文题名：COMPOSITION, STRUCTURE AND PYROLYSIS OF CYCLOHEXANONE EXTRACTS OF YANZHOU COAL

作者：陈茺[1];高晋生[1];颜捷[1]

机构：[1]华东理工大学能源化工系

年份：1997

卷号：25

期号：2

起止页码：135

中文期刊名：燃料化学学报

外文期刊名：Journal of Fuel Chemistry and Technology

收录：CSTPCD;;EI(收录号：1997123978811);Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：煤;溶剂抽提物;热解;环己酮;萃取;煤结构

外文关键词：coal, solvent extracts, FITR, 1HNMR, pyrolysis, cyclohexanone

摘要：前沥青烯及沥青烯是环己酮抽出物的主要级分，它们与原煤有相近的元素组成，并且分子量较大（１３２０～１５６０），因此抽出物的组成与结构较好地反映出原煤的组成与结构。本文通过红外光谱，核磁共振的研究讨论了抽出物中前沥青烯及沥青烯级分的结构特点，并由核磁共振氢谱数据计算抽出物的平均分子结构参数，前沥青烯及沥青烯级分的芳香度分别为０．７２及０．６３。抽出物的热解行为表明，热解反应集中在２００～６００℃，主要产物为焦油，占热解产物的５０．６％。
Cyclohexanone is a new effective solvent for coal extraction which we have found recently The extracts of high extraction yield (up to 40% for Yanzhou coal) and high molecular weight (1230 for asphaltenes and 1560 for preasphaltenes) are available for investigating the coal molecular structure Preasphaltenes and asphaltenes are the main components of the extracts The structural analysis by FTIR and 1 HNMR showed that preasphaltenes, compared with asphaltenes, had a higher aromaticity (0 72 for preasphaltene and 0 63 for asphaltene) and more bridge methylene but less side alkyl The pyrolysis reaction of the extracts occured at 200￣600℃ and the main pyrolysis product of the extracts was tar