短期风化条件下渤海中部原油中PAHs风化规律研究  

Weathered regulation of polycyclic aromatic hydrocarbons(PAHs) in crude oil of central Bohai Sea in short-term

作　　者：曹磊[1,2] 韩彬[2] 郑立[2] 李培昌[2] 宋转玲[2] 杨东方[1] 王小如[2] 

机构地区：[1]上海海洋大学水产与生命学院,上海201306 [2]国家海洋局第一海洋研究所,山东青岛266061

出　　处：《海洋环境科学》2011年第3期349-354,共6页Marine Environmental Science

基　　金：海洋公益性行业科研专项项目(200705011);国家海洋局近岸海域生态环境重点实验室开放研究基金项目(200808;200908);国家海洋局第一海洋研究所基本科研业务费专项(2010G14);国家海洋局青年科学基金(2008601)

摘　　要：以渤海中部某原油作为研究对象进行短期风化实验,探讨了原油中五大类PAHs组分的分布情况及其风化规律。结果表明:经过22d风化,渤海中部某原油PAHs中芳烃的分布已经发生了较大的改变:萘系列化合物损失最为严重,相对浓度的损失达到79.15%;菲系列所占的比例有所提高,二苯并噻吩、、芴系列则保持相对稳定;所选取新诊断比值中,菲和系列、烷基取代二苯并噻吩类、烷基取代芴类抗风化能力较强。This paper presents the changes of the polycyclic aromatic hydrocarbons（PAHs） in the crude oil from the central Bohai Sea during simulated short-termweathering.The results showed that the distribution patterns of PAHs in crude oil had great change after 22 days weathering.Naphthalene （NAP） series compounds had the most serious loss and loss of the relative concentration reached 79.15%.While the proportion of phenanthrene （PHE） series compounds were increased in some extent,dibenzothiophene （DBT） series,chrysene （CHR） series and fluorene （FLU） series remained relatively stable.Among the selected diagnostic ratios,the phenanthrene series,chrysene series,alkyl dibenzothiophene series and alkyl fluorene series had strong weathering-resistant capabilities.

关 键 词：原油 多环芳烃 风化 诊断比值 

分 类 号：O65[理学—分析化学] X55[理学—化学]