淮南煤焦CS_2-丙酮萃取物的GC/MS分析  

GC/MS Analysis of Extract from Huainan Coal Chars with Disulfide-acetone Mixed Solvent

作　　者：谢瑞伦[1] 宗志敏[1] 吕洁 严慧龙[1] 王万里[1] 魏贤勇[1] 

机构地区：[1]中国矿业大学煤炭加工与高效洁净利用教育部重点实验室,江苏徐州221116 [2]上海河图工程股份有限公司,上海201203

出　　处：《河南师范大学学报（自然科学版）》2014年第5期86-91,共6页Journal of Henan Normal University(Natural Science Edition)

基　　金：国家自然科学基金煤炭联合基金重点项目(51134021);国家自然科学基金面上项目(21276268)

摘　　要：用等体积的CS2-丙酮混合溶剂萃取了不同热解温度和时间得到的淮南煤焦,用GC/MS法分析了煤焦的萃取物的组成.结果表明:在较高热解温度和用较长热解时间得到的煤焦在CS2-丙酮混合溶剂中的萃取率较低;萃取物主要由长链烷烃、芳烃和含杂原子化合物组成;热解速率对煤焦中芳烃的缩合度有重要影响,在相同热解温度下,慢速煤焦中芳环的缩合程度高于快速煤焦.Huainan coal chars obtained at different pyrolysis temperatures and for different periods of nme were extracted with isometric carbon disulfideacetone mixed solvent to afford extracts. The extracts were analyzed with gas chromatography/ mass spectrometer. The results show that the coal chars obtained at higher pyrolysis temperatures and for longer pyrolysis periods of time have lower extraet yields The extracts mainly consist of long-chain alkanes, arches and heteroatom-containing compounds.＇ Pyrolysis rates have important influence on condensation degree of aromatics in coal chars. At t, he same pyrolysis temperature, the condensation degree of aromatics obtained from slowly pyrolysis coal chars are highly than rapidly pyrolysis coal chars.

关 键 词：煤焦 热解温度 热解速率 萃取 GC MS分析 

分 类 号：TQ536[化学工程—煤化学工程] O657[理学—分析化学]