Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution

Mostafa Lashkarbolooki; Roohollah Parvizi; Shahab Ayatollahi; Ebrahim Ghaseminejad Raeeni

doi:10.1016/j.cjche.2019.04.008

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Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution
- Chinese Journal of Chemical Engineering Vol. 28, Issue 1, Pages: 224-235(2020)
- Affiliations：
  
  1. School of Chemical Engineering, Babol Noshirvani University of Technology, Babol,Iran
  2. Department of Chemical Engineering, Islamic Azad University,Iran
  3. School of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran,Iran
  4. National Iranian South Oil Company,Iran
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.04.008
  CLC：
- Published：2020
- Accepted：
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Mostafa Lashkarbolooki, Roohollah Parvizi, Shahab Ayatollahi, Ebrahim Ghaseminejad Raeeni. Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 224-235.
DOI：

Mostafa Lashkarbolooki, Roohollah Parvizi, Shahab Ayatollahi, Ebrahim Ghaseminejad Raeeni. Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution[J]. Chinese Journal of Chemical Engineering, 2020, 28(1): 224-235. DOI： 10.1016/j.cjche.2019.04.008.

摘要

Abstract

Understanding the roles of asphaltene and resin as natural surfactants existed in crude oil can enlighten contradicting reported results regarding interfacial tension (IFT) of crude oil/aqueous solution as a function of salinity and ion type. In this way

this study is aimed to investigate the effect of these natural surface active agents on IFT of with special focus on SO

anion and Mg

cation. Two different synthetic oil solutions of 8 wt% of the extracted asphaltene and resin dissolved in toluene are prepared

and then IFT values are measured. After that

the obtained results are compared with the IFT of intact crude oil in contact with the same saline solutions examined in the previous stage. The obtained results showed a synergistic effect of Na

+MgCl

solution unlike the MgSO

+MgCl

and CaSO

+MgCl

solutions on IFT reduction of resin at MgCl

concentration of 15000 mg·kg

-1

. In summary

it is found that the affinity of asphaltene molecules towards the interface of oleic phase/ionic solution leads to higher IFT variation.

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