Study on stability of heavy crude oil-in-water emulsions III. Oil-water surface tension for heavy crude components and water system

被引：0
|
作者：
Fan, Wei-Yu [1 ]
Chen, Shu-Kun [1 ]
Yang, Meng-Long [1 ]
Song, Yuan-Ming [1 ]
Zhao, Fu-Lin [1 ]
机构：
[1] Univ. of Petrol., Dongying 257062, China
来源：
Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2001年 / 17卷 / 05期
关键词：
Crude petroleum - pH - Stability - Surface tension;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The interface tensions (γ) of oil-water system containing Liaohe heavy crude functional fractions or polar components (acid, basic, amphoteric, neutral fractions, saturates, aromatics, resin and asphaltene) were measured. The effects of content of components, water pH value, salinity and temperature on γ were investigated. The results showed that γ between the aqueous phase and the toluene phase containing different polar fractions were sequenced as follows: γ (saturates)>γ (aromatics) > (resins) > γ (asphaltenes) while that of the functional fractions was: γ (neutral fractions) > (basic fractions) > (acid fractions) and γ (amphoteric fractions). The interficial tensions of acid fraction, amphoteric fraction and asphaltene fraction were low especially in basic conditions (pH=11-12), showing that they were the main interfacial active components in heavy crude oils. Basic conditions are favorite to maintain the stability of the O/W emulsions. By using the isolation method based on functional groups, the action essence of active components in heavy crude oils can be well revealed.
引用
收藏
页码：1 / 6
相关论文
共 50 条
  • [41] Rheological characteristics of unstable heavy crude oil-water dispersed mixtures
    Zhang, Jian
    Chen, Xiao-Ping
    Xu, Jing-yu
    JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2019, 182
  • [42] EMULSIFICATION AND DEMULSIFICATION STUDY OF CRUDE OIL-WATER SYSTEM
    SINGH, BP
    PANDEY, BP
    RESEARCH AND INDUSTRY, 1991, 36 (03): : 203 - 207
  • [43] Stability of oil-in-water emulsions in a low interfacial tension system
    Binks, BP
    Cho, WG
    Fletcher, PDI
    Petsev, DN
    LANGMUIR, 2000, 16 (03) : 1025 - 1034
  • [44] The effect of alkali on crude oil/water interfacial properties and the stability of crude oil emulsions
    Guo, JX
    Liu, Q
    Li, MY
    Wu, ZL
    Christy, AA
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2006, 273 (1-3) : 213 - 218
  • [45] Effect of pH on the Stability of Water in Heavy Crude Oil Emulsions Stabilized by Saponin and Rhamnolipid Biosurfactants
    Sattarpour, Farid
    Hajimohammad, Reza
    Amirkhani, Leila
    IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION, 2023, 42 (09): : 3068 - 3075
  • [46] The effect of HPAM on crude oil/water interfacial properties and the stability of crude oil emulsions
    Li, Mingyuan
    Xu, Mingjin
    Lin, Meiqin
    Wu, Zhaoliang
    JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY, 2007, 28 (01) : 189 - 192
  • [47] Study on demulsifier crude oil interactions at oil-water interface for crude oil dehydration
    Li, Zuoli
    Chakraborty, Anirban
    Fuentes, Jessica
    Zamora, Edgar
    Vazquez, Flavio
    Xu, Zhenghe
    Liu, Qingxia
    Flores, Cesar
    McCaffrey, William C.
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2021, 630
  • [48] Effect of Asphaltenes on the Stability of Water in Crude Oil Emulsions
    Peng, Yan
    Zhang, Xiangyu
    Cheng, Lihua
    Zhang, Hong
    Tang, Jieyun
    Chen, Hong
    Fan, Qinzhen
    Ouyang, Xinping
    MATERIALS, 2025, 18 (03)
  • [49] Morphology and Rheology of Heavy Crude Oil/Water Emulsions Stabilized by Microfibrillated Cellulose
    Gorbacheva, Svetlana N.
    Ilyin, Sergey O.
    ENERGY & FUELS, 2021, 35 (08) : 6527 - 6540
  • [50] The stability of water-in-crude and model oil emulsions
    Sullivan, Andrew P.
    Zaki, Nael N.
    Sjoblom, Johan
    Kilpatrick, Peter K.
    CANADIAN JOURNAL OF CHEMICAL ENGINEERING, 2007, 85 (06): : 793 - 807
12345