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Molecular dynamics simulation of the synergistic effect of a compound surfactant on the stability of CO2 oil-based foam
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  • Zhoujie Wang,
  • Songyan Li,
  • Shaopeng Li,
  • Jianzhong Zhu,
  • Heng Yang
Zhoujie Wang
China University of Petroleum Huadong - Qingdao Campus
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Songyan Li
China University of Petroleum Huadong - Qingdao Campus

Corresponding Author:[email protected]

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Shaopeng Li
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Jianzhong Zhu
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It is of great significance to study the stability of foams in the petroleum industry. Therefore, the stability mechanism of Span 20, the fluorinated surfactant FCO-80 and their compound system FS in a CO2 oil-based foam system was studied by molecular simulation. The sandwich model of CO2 oil-based foam was constructed to reveal the stability of the foam system from the microscopic perspective. The result shows that the oil-CO2 distance of the FS foam system is 16.087 Å, and the coordination number of oil molecules is 2.65. The diffusion coefficient of CO2 in the FS foam system is 3.94×10-6 cm2/s. This shows that under the synergistic effect of Span 20 and FCO-80, the diffusion coefficients of CO2 molecules are small, and the surface tension is reduced, which can improve the stability of foam. The results can supplement previous experimental results on the stability of oil-based foam.
05 Dec 2022Submitted to AIChE Journal
07 Dec 2022Review(s) Completed, Editorial Evaluation Pending
07 Dec 2022Submission Checks Completed
07 Dec 2022Assigned to Editor
07 Jan 2023Reviewer(s) Assigned
05 Feb 2023Editorial Decision: Revise Major
20 Feb 20231st Revision Received
02 Mar 2023Submission Checks Completed
02 Mar 2023Assigned to Editor
02 Mar 2023Review(s) Completed, Editorial Evaluation Pending
11 Mar 2023Reviewer(s) Assigned
08 Apr 2023Editorial Decision: Revise Minor
09 Apr 20232nd Revision Received
09 Apr 2023Submission Checks Completed
09 Apr 2023Assigned to Editor
09 Apr 2023Review(s) Completed, Editorial Evaluation Pending
27 May 2023Editorial Decision: Accept