陕北中低温煤焦油常压重油馏分GC-MS分析  

Vacuum distillation and GC-MS analysis of coal tar in low temperature from Northern Shaanxi

作　　者：杜鹏鹏[1] 孙鸣[1] 陈静[1] 陈繁荣[1] 马晓迅[1] 

机构地区：[1]西北大学化工学院陕北能源先进化工利用技术教育部工程研究中心陕西省洁净煤转化工程技术研究中心,陕西西安710069

出　　处：《化学工程》2014年第3期59-63,共5页Chemical Engineering(China)

基　　金：国家高技术研究863发展计划(2011AA05A2021);国家自然科学基金资助项目(51174281);国家自然科学青年基金资助项目(NSFC21006078);陕西省重大科技创新项目(2009ZKC04-06);陕西省科学技术研究发展计划项目(2010K01-082);陕西省自然科学基金资助项目(2011JY006)

摘　　要：以陕北中低温煤焦油的重油为原料,在常压蒸馏装置中切取<100℃,100—200℃,200—240℃,240—270℃,270—300℃,300—340℃和340—390℃七段馏分,利用GC-MS分析馏分中化合物的组成情况。结果表明:200—240℃、270—300℃、300—340℃馏分的馏出质量最大,质量分数分别为12.62%,15.59%和17.73%;馏分中含有脂肪烃、芳香烃和酚类化合物及少量杂环化合物;酚类化合物主要富集在100—200℃、200—240℃、240—270℃3段馏分中,分别占各馏分质量的63.34%,59.65%和23.81%,所含酚类化合物主要为低级酚、C3—C4烷基苯酚、茚酚、苯二酚、萘酚和烷基萘酚等。Presenting the preparation of vacuum distillation with H-tar （heavy coal tar）in a low temperature coal tar from Northern Shaanxi.Seven fractions were isolated from H-tar by vacuum distillation in ＆lt;100 ℃,100-200 ℃, 200-240 ℃,240-270 ℃,270-300 ℃,300-340 ℃ and 340-390 ℃ respectively,and their compositions and distributions were characterized by gas chromatography/mass spectrometry （GC-MS）.The results show that the most distillate quality of fractions is in a range of 200-240 ℃,270-300 ℃ and 300-340 ℃,with their mass fractions of 12.62%,15.59% and 17.73% respectively;the fraction contains aliphatic hydrocarbons,aromatic hydrocarbons,heterocyclic compounds and a small amount of phenolic compounds;phenols mainly enrich in the fractions of 100-200 ℃,200-240 ℃ and 240-270 ℃,with their mass fractions of 63.34%,59.65% and 23.81%respectively.The main phenolic compounds in H-tar were low-rank phenols,C3-C4 alkyl-phenols,indenols, hydroquinones,naphthols and alkyl-naphthols.

关 键 词：中低温煤焦油 常压蒸馏 酚类化合物 

分 类 号：TQ524[化学工程—煤化学工程]