褐煤超临界醇解反应与产物组成分析  

Supercritical Methanolysis Reaction of Lignite and Compositional Aanalysis of Product

作　　者：彭耀丽[1] 李艳[1] 周肖[1] 谢瑞伦[1] 马玉苗[1] 位艳宾[1] 魏贤勇[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008

出　　处：《煤炭工程》2009年第2期88-90,共3页Coal Engineering

基　　金：国家863计划(2007AA06Z113);江苏省普通高校研究生科研创新计划资助项目(CX08B_116Z)

摘　　要：锡林浩特褐煤在300℃下以碱为催化剂进行超临界醇解反应,醇解产物经后处理,得到水溶性有机物和固体醇解产物。固体醇解产物以正己烷、乙醚、甲醇和THF为萃取剂进行分级萃取,分别得到各级可溶物,用GC/MS对水溶性有机物和各级可溶物进行了检测,通过分析检测到的化合物,认为在设计的超临界醇解反应中褐煤主要是醚桥的断裂,而使其溶解性大增。Xilinhaote lignite was subject to alkali - catalyzed supercritical methanolysis at 300℃. The water - soluble fraction and solid product were obtained through post - processing, solid product were extracted with n - hexane, ether, methanol and THF sequentially. Both the water - soluble fraction and the extracts were analyzed with GC/MS, The result shows that ester bridge can easily break under supercritical methanolysis, which increase solubility in organic solvent.

关 键 词：褐煤 超临界醇解 组成分析 醚桥 

分 类 号：X752[环境科学与工程—环境工程]