Formation and sedimentation of oil-mineral aggregates in the presence of chemical dispersant

被引:2
作者
Li, Wenxin [1 ]
Qi, Zhixin [1 ]
Xiong, Deqi [1 ]
Wu, Yifei [1 ]
Wang, Wei [1 ]
Qi, Yajing [1 ]
Guo, Jian [1 ]
机构
[1] Dalian Maritime Univ, Coll Environm Sci & Engn, Dalian 116026, Peoples R China
关键词
DILUTED BITUMEN; FATE; PARTICLES; SIZE; TRANSPORT; BREAKING; DROPLETS; BEHAVIOR;
D O I
10.1039/d3em00327b
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The formation and sedimentation of oil-mineral aggregates (OMAs) is the major method to transport spilled oil to the seafloor. In this study, the formation and sedimentation experiments of OMA using montmorillonite and four crude oils were performed in a wave tank in the presence of chemical dispersant. Most of the formed OMAs were droplet OMAs, and single droplet OMA would aggregate into multiple ones under the action of the dispersant. The size of the oil droplets trapped in the OMA increased with time and was larger for the oil with higher viscosity. The sinking velocities of OMAs formed in this study were between 100-1200 mu m s-1 and they were positively correlated with their diameter. The density of OMA was of the same order as that of the crude oil that formed them. An increase in the dispersant dosage could promote the formation of OMAs. The oil content in OMAs was higher for the denser oil in the presence of a dispersant. The maximum oil trapping efficiency of OMAs was 48.05%. This study provides fundamental data on the formation kinetics of OMAs. The formation and sedimentation of oil-mineral aggregates (OMAs) is the major method to transport spilled oil to the seafloor.
引用
收藏
页码:1937 / 1944
页数:9
相关论文
共 50 条
[41]   Chemical Affinity Modeling of Methane Hydrate Formation and Dissociation in the Presence of Surfactants [J].
Gudala, Manojkumar ;
Govindarajan, Suresh Kumar ;
Mandal, Ajay .
ENERGY & FUELS, 2020, 34 (01) :319-331
[42]   Oleic acid as a synergistic agent in the formation of kaolinite-mineral oil Pickering emulsions [J].
Sieben, Priscila Gritten ;
Wypych, Fernando ;
Freitas, Rilton Alves de .
APPLIED CLAY SCIENCE, 2022, 216
[43]   Chemical Elements Concentration, Variations in Mineral Composition, and Current Rate of Sedimentation in Sapropel Deposits of Small Lakes in the Taiga Zone of Southern Siberia [J].
Strakhovenko, V. D. ;
Ovdina, E. A. ;
Malov, V. I. ;
Malov, G. I. .
RUSSIAN GEOLOGY AND GEOPHYSICS, 2023, 64 (07) :824-838
[44]   Formation mechanism of polycyclic aromatic hydrocarbons during mineral oil pyrolysis: A ReaxFF molecular dynamics study [J].
Xu, Linlin ;
Wan, Gan ;
Sun, Lushi ;
Lin, Li .
FUEL, 2024, 365
[45]   Effect of Temperature, Pressure, and Type of Gas Injected on the Formation and Decay of Mineral Oil-Based Foams [J].
Tiuman, Erich T. ;
da Silva, Fabricio S. ;
Morales, Rigoberto E. M. ;
Neto, Moises A. Marcelino .
ACS OMEGA, 2023, 8 (43) :40321-40340
[46]   Reynolds-averaged Navier-Stokes simulation of nearshore Langmuir circulation and the formation of oil-particle aggregates [J].
Penaloza-Gutierrez, J. J. ;
Tejada-Martinez, A. E. ;
Boufadel, M. C. .
OCEAN MODELLING, 2024, 187
[47]   Simultaneous use of disulphide oil for chemical-enhanced oil recovery by emulsion formation and stability with asphaltene deposition control [J].
Jahani, Shahriar ;
Kazemzadeh, Yousef ;
Azin, Reza ;
Dehghani, Mohammad Rasool .
CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2025, 103 (06) :2624-2641
[48]   Analytical Electron Microscopy of Carbon-Rich Mineral Aggregates in Solvent-Diluted Bitumen Products from Mined Alberta Oil Sands [J].
Couillard, Martin ;
Mercier, Patrick H. J. .
ENERGY & FUELS, 2016, 30 (07) :5513-5524
[49]   Study of ethane hydrate formation kinetics using the chemical affinity model with and without presence of surfactants [J].
Karimi, Reza ;
Varaminian, Farshad ;
Izadpanah, Amir A. .
JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS, 2014, 39 (04) :219-229
[50]   A laboratory study on the kinetics of the formation of oil-suspended particulate matter aggregates using the NIST-1941b sediment [J].
Sun, Juan ;
Khelifa, Ali ;
Zheng, Xilai ;
Wang, Zhendi ;
So, Lily L. ;
Wong, Sharon ;
Yang, Chun ;
Fieldhouse, Benjamin .
MARINE POLLUTION BULLETIN, 2010, 60 (10) :1701-1707