SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2017, Vol. 25 ›› Issue (12): 1820-1830.DOI: 10.1016/j.cjche.2017.02.004

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Experimental and modeling investigation of dynamic interfacial tension of asphaltenic-acidic crude oil/aqueous phase containing different ions

Mostafa Lashkarbolooki1, Shahab Ayatollahi2   

  1. 1. School of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran;
    2. School of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
  • Received:2016-09-25 Revised:2017-01-14 Online:2018-01-18 Published:2017-12-28
  • Contact: Mostafa Lashkarbolooki,E-mail address:m.lashkarbolooki@nit.ac.ir.

Experimental and modeling investigation of dynamic interfacial tension of asphaltenic-acidic crude oil/aqueous phase containing different ions

Mostafa Lashkarbolooki1, Shahab Ayatollahi2   

  1. 1. School of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran;
    2. School of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
  • 通讯作者: Mostafa Lashkarbolooki,E-mail address:m.lashkarbolooki@nit.ac.ir.

Abstract: In this way, after experimentalmeasurement of interfacial tension, different models includingmono-exponential decay, dynamic adsorptionmodels and empirical equation are used to correlate this time-dependent behavior of interfacial tension (IFT). During the modeling approach, the induction, adsorption, equilibrium, and mesoequilibrium times as well as diffusivity of surface active components known as natural surfactant including asphaltene and resin from crude oil to the interface are obtained. In addition, the surface excess concentration of surface active components at the interface and Gibbs adsorption isothermare utilized to analyze the measured dynamic IFTs. Finally, the mechanisms of crude oil/aqueous solution IFT including (a) the activity of surfaceactive components and (b) surface excess concentration of them at fluid/fluid interface are proposed and discussed in details.

Key words: Dynamic IFT, Adsorption, Ion, Crude oil, EOR

摘要: In this way, after experimentalmeasurement of interfacial tension, different models includingmono-exponential decay, dynamic adsorptionmodels and empirical equation are used to correlate this time-dependent behavior of interfacial tension (IFT). During the modeling approach, the induction, adsorption, equilibrium, and mesoequilibrium times as well as diffusivity of surface active components known as natural surfactant including asphaltene and resin from crude oil to the interface are obtained. In addition, the surface excess concentration of surface active components at the interface and Gibbs adsorption isothermare utilized to analyze the measured dynamic IFTs. Finally, the mechanisms of crude oil/aqueous solution IFT including (a) the activity of surfaceactive components and (b) surface excess concentration of them at fluid/fluid interface are proposed and discussed in details.

关键词: Dynamic IFT, Adsorption, Ion, Crude oil, EOR