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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。
Short-term weathering experiment was conducted on a crude oil in the central Bohai Sea, and the distribution of five major PAHs components in crude oil and its weathering rule were discussed. The results show that after 22 days of weathering, the distribution of aromatics in PAHs of a crude oil in the central Bohai Sea has been greatly changed: the loss of naphthalene series compounds is the most serious, with the loss of relative concentration reaching 79.15%; the proportion of phenanthrene series increased; Benzothiophene, and fluorene series remained relatively stable. Among the new diagnostic ratios selected, phenanthrene and its series, alkyl-substituted dibenzothiophenes and alkyl-substituted fluorenes showed strong resistance to weathering.