煤基液体产物中酚类化合物的组成研究

以5种不同煤加工转化过程得到的液体产物煤衍生油为原料,研究了其中酚类化合物的组成与分布特征。首先将不同煤衍生油蒸馏切取富含酚170-210℃酚油馏分,采用酸碱抽提法提取其富集酚类组分,其次对富集酚类组分进行硅醚衍生化预处理,最后利用GC/MS详细分析了酚油馏分中酚类化合物的组成与分布。结果表明:不同煤衍生油的酚油馏分中酚类化合物主要由烷基苯酚、茚满醇、苯二酚3种类型组成,其中烷基苯酚均占90%以上。4号CDO其酚类类型包括烷基苯酚、茚满醇、苯二酚3部分,其中烷基苯酚占92.4%。低级酚占全部酚类的86.1%,高级酚占13.9%;2号CDO其酚类类型由烷基苯酚、苯二酚2部分组成,其中烷基苯酚占9...

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Bibliographic Details
Published in煤炭学报 Vol. 43; no. 1; pp. 265 - 271
Main Author 毛学锋
Format Journal Article
LanguageChinese
Published 煤炭科学技术研究院有限公司 煤化工分院,北京 100013 2018
煤炭资源开采与洁净利用国家重点实验室,北京 100013
国家能源煤炭高效利用与节能减排技术装备重点实验室,北京 100013
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ISSN0253-9993
DOI10.13225/j.cnki.jccs.2017.0707

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Summary:以5种不同煤加工转化过程得到的液体产物煤衍生油为原料,研究了其中酚类化合物的组成与分布特征。首先将不同煤衍生油蒸馏切取富含酚170-210℃酚油馏分,采用酸碱抽提法提取其富集酚类组分,其次对富集酚类组分进行硅醚衍生化预处理,最后利用GC/MS详细分析了酚油馏分中酚类化合物的组成与分布。结果表明:不同煤衍生油的酚油馏分中酚类化合物主要由烷基苯酚、茚满醇、苯二酚3种类型组成,其中烷基苯酚均占90%以上。4号CDO其酚类类型包括烷基苯酚、茚满醇、苯二酚3部分,其中烷基苯酚占92.4%。低级酚占全部酚类的86.1%,高级酚占13.9%;2号CDO其酚类类型由烷基苯酚、苯二酚2部分组成,其中烷基苯酚占99.89%。低级酚占全部酚类的99.5%,高级酚仅占0.5%;1号CDO和3号CDO其酚类类型只包含烷基苯酚类,高温炼焦产生的1号CDO全部以低级酚为主。3号CDO低级酚占全部酚类的98.4%,高级酚占1.6%;5号CDO其酚类类型包括烷基苯酚、茚满醇2部分,其中烷基苯酚占94.8%。低级酚占全部酚类的91.6%,高级酚含量占8.4%。因此,应足够重视不同煤衍生油中低级酚的提取利用。
Bibliography:The composition and distribution of phenolic compounds in five kinds of coal derived oils in coal-based liquid production from the different process of coal chemical industry were investigated.Firstly,the fractions were isolated from different coal derived oils by distillation in 170-210 ℃,which is rich in phenols.The method of acid and alkali was used to extract the phenolic compounds in 170-210 ℃ fractions.Secondly,the rich phenolic compounds were pretreated by silicon ether derivatization,and the characterization of phenols was analyzed by GC/MS.It was found that three types of phenolic compounds,such as alkyl phenols,hydroquinones and indanol,were in each phenol-rich oil fractions from different coal derived oils,in which alkyl phenols is above 90%.There were three types of phenolic compounds,such as alkyl phenols,hydroquinones and indanol in the No.4 CDO,in which alkylphenol contributed the 92.4% of the total phenols.The lower-rank phenols accounted for 86.1% of the total phenols,while the higher-rank ph
ISSN:0253-9993
DOI:10.13225/j.cnki.jccs.2017.0707