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Study on the Mechanism of Asphaltenes Reducing Oil-Water Interfacial Tension
Y. W. Wang; T. X. Cheng and G. D. Zhou
2021
发表期刊Chemical Research in Chinese Universities
ISSN1005-9040
页码6
摘要As high polar components of crude oil, asphaltenes play a significant role in reducing oil-water interfacial tension(IFT). In this paper, the effects of asphaltenes on reducing IFT in the presence of surfactant were compared, and the mechanism of asphaltenes reducing the IFT was studied by the dynamic interfacial tension(DIFT) equation. Whether asphaltenes were added to the oil or 2,5-dimethyl-4-(4-dodecyl) benzene sodium sulfonate(p-S14-4) was added to the water phase, either of all results in the IFT reducing and the IFT is related to the coverage and the mass of asphaltenes adsorption at the interface. In the presence of asphaltenes, the adsorption of the active substances to the interface is not entirely dependent on diffusion, and the process can be divided into three regions. Region I: the IFT rapidly reducing, this process is controlled by diffusion of surfactant; Region II: the IFT reducing slowly, resulted from the lower diffusion rate that is limited due to the aggregates formed by the interaction of asphaltene-asphaltene; Region III: the interaction of asphaltene-asphaltene is broken by the interaction of surfactant-asphaltene. The asphaltene aggregates are reduced and adsorbed rapidly at the interface. Furthermore, the results reveal that the asphaltenes concentration affects the coverage rate and adsorption at the interface.
DOI10.1007/s40242-021-1178-3
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收录类别SCI
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ciomp.ac.cn/handle/181722/65949
专题中国科学院长春光学精密机械与物理研究所
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Y. W. Wang,T. X. Cheng and G. D. Zhou. Study on the Mechanism of Asphaltenes Reducing Oil-Water Interfacial Tension[J]. Chemical Research in Chinese Universities,2021:6.
APA Y. W. Wang,&T. X. Cheng and G. D. Zhou.(2021).Study on the Mechanism of Asphaltenes Reducing Oil-Water Interfacial Tension.Chemical Research in Chinese Universities,6.
MLA Y. W. Wang,et al."Study on the Mechanism of Asphaltenes Reducing Oil-Water Interfacial Tension".Chemical Research in Chinese Universities (2021):6.
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