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Updated: Sep 24, 2025

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
Published on: January 16, 2018
Petroleum hydrocarbon release behavior study in oil-sediment aggregates: turbulence intensity and chemical dispersion
Dong Yan1,2, Long Meng1,2, Haoshuai Li1,2
1Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education/Institute for Advanced Ocean Study, Ocean University of China Songling Road 238 Qingdao 266100 China mtbao@ouc.edu.cn +86-532-66782509 +86-532-66782509.
Abstract:
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 C15-C35 and 2-3 ring PAHs in residual oil. These results can help assess the fate and distribution of oil spills in marine environments.
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