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Petroleum hydrocarbon release behavior study in oil-sediment aggregates: turbulence intensity and chemical dispersion effect

机译：油沉积物聚集体的石油烃释放行为研究：湍流强度和化学分散效应

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摘要

This study investigated the effects of turbulence and oil dispersants on release of petroleum hydrocarbons in oil-sediment aggregates. A kinetic study showed that the static oil release process could be fitted to the first-order kinetics model. The oil concentration increased with increasing temperature and salinity, while remaining independent of pH. The dispersant desorption ability of petroleum hydrocarbons followed the sequence of: Tween 80 > Tween 85 > Span 80 > DOSS. In the presence of turbulence, the maximum release ratio was 40.28%. However, the combination of dispersants and turbulence had a smaller effect than turbulence alone. Furthermore, residual n-alkanes and PAHs in the sediments were analyzed. The results showed higher proportions of C-15-C-35 and 2-3 ring PAHs in residual oil. These results can help assess the fate and distribution of oil spills in marine environments.
机译：本研究研究了湍流和油分散剂对油沉积物聚集体释放石油烃的影响。 动力学研究表明，静电释放过程可以安装到一阶动力学模型。 随着温度和盐度的增加而增加，油浓度增加，同时仍然独立于pH。 石油烃的分散解吸能力跟随序列：吐温80>吐温85>跨度80>铜。 在存在湍流的情况下，最大释放比为40.28％。 然而，分散剂和湍流的组合效果小于单独的湍流。 此外，分析了沉积物中的残留的N-烷烃和PAHs。 结果表明，残留油中的C-15-C-35和2-3个环PAH的比例较高。 这些结果可以帮助评估海洋环境中的漏油的命运和分布。

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  • 来源
    《RSC Advances》 |2019年第14期|共10页
  • 作者

    Yan Dong; Meng Long; Li Haoshuai; Song Tianwen; Su Peiyan; Bao Mutai; Li Ximing;

  • 作者单位

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Minist Educ Inst Adv Ocean Study Songling Rd 238 Qingdao 266100 Shandong Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Minist Educ Inst Adv Ocean Study Songling Rd 238 Qingdao 266100 Shandong Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Minist Educ Inst Adv Ocean Study Songling Rd 238 Qingdao 266100 Shandong Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Minist Educ Inst Adv Ocean Study Songling Rd 238 Qingdao 266100 Shandong Peoples R China;

    State Ocean Adm Key Lab Marine Spill Oil Identificat &

    Damage Ass North China Sea Environm Monitoring Ctr Qingdao 266033 Shandong Peoples R China;

    Ocean Univ China Key Lab Marine Chem Theory &

    Technol Minist Educ Inst Adv Ocean Study Songling Rd 238 Qingdao 266100 Shandong Peoples R China;

    Shengli Oilfield Co Petr Engn Technol Res Inst Sinopec Dongying 257000 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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