原煤中可抽提噻吩硫的研究  

STUDY ON THE THIOPHENES ORGANOSULFURS IN THE RAW COAL EXTRACTS

作　　者：邢孟文[1] 李凡[1] 

机构地区：[1]太原理工大学煤科学与技术教育部和山西省重点实验室,太原研究生030024

出　　处：《煤炭转化》2011年第4期1-4,49,共5页Coal Conversion

基　　金：国家自然科学基金资助项目(20876103)

摘　　要：为探寻煤结构中小分子噻吩类有机硫的特性以及其与煤性质的关系,以苯并噻吩和二苯并噻吩为研究对象,采用热抽提及GC-MS(色质联用仪)研究不同变质程度煤中可抽提的噻吩类有机硫含量和种类,从而得到原煤中噻吩类有机硫与煤中各性质参数的关系.研究得出,不同煤种中抽提出来的二苯并噻吩的量要高于苯并噻吩的量;原煤中可抽提噻吩硫的量随着碳含量的增加呈现降低的趋势;随着挥发分产率和O/C摩尔比的升高而升高,而与煤中全硫含量没有关系.In order to get the relationship between character of micromolecular thiophenes organosulfurs and coal properties,benzothiophene and dibenzothiophene were investigated as target compounds,and thiophenes organosulfurs were extracted from the raw coal by Gerhardt Soxtherm and analyzed by GC-MS.The relationship between thiophenes organosulfurs extracted and coal property were discussed.The results showed that the amount of dibenzothiophene was higher than benzothiophene which extracted from same raw coal;the amount of thiophenes organosulfurs extracted from the raw coal decreased with the increase of carbon content and in coal.And the amount of thiophenes organosulfurs extracted increased with the increase of both volatile yields and the O/C ratio.But the total sulfur content in the coal has no immediate with the amount of thiophenes organosulfurs.

关 键 词：苯并噻吩 二苯并噻吩 原煤 抽提物 GC-MS联用仪 

分 类 号：TQ531.5[化学工程—煤化学工程]