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Determination of dynamic interfacial tension in a pulsed column under mass transfer condition
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  • Bo Wang,
  • Han Zhou,
  • Xiong Yu,
  • Shan Jing,
  • Qiang Zheng,
  • Wenjie Lan,
  • Shaowei Li
Bo Wang
Tsinghua University
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Han Zhou
Tsinghua University
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Xiong Yu
Tsinghua University
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Shan Jing
Tsinghua University
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Qiang Zheng
Tsinghua University
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Wenjie Lan
China University of Petroleum (Beijing)
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Shaowei Li
Tsinghua University
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Abstract

Interfacial tension is an essential physical property in two phase flow and it changes due to the mass transfer. The measurement of dynamic interfacial tension (DIFT) in such condition is a difficult problem. In previous study (Zhou at al., Chem Eng Sci. 2019; 197:172-183), we presented the quantitative relation between the droplet breakup frequency function (DBFF) and interfacial tension. It is found that the DBFF is highly depends on interfacial tension. Therefore the DBFF is a suitable parameter to quantitatively characterize the interfacial tension. Based on this concept, the DIFT in the column is determined by regression method after the DBFF under mass transfer condition is measured. It is found that the DIFT is smaller than the static interfacial tension. This result indicates that interphase mass transfer leads to decreasing of the interfacial tension. The decreasing extent of the DIFT has a positive correlation with the mass transfer flux.

Peer review status:ACCEPTED

25 Jan 2020Submitted to AIChE Journal
31 Jan 2020Submission Checks Completed
31 Jan 2020Assigned to Editor
04 Feb 2020Reviewer(s) Assigned
24 Feb 2020Editorial Decision: Revise Major
12 Mar 20201st Revision Received
23 Mar 2020Submission Checks Completed
23 Mar 2020Assigned to Editor
25 Mar 2020Reviewer(s) Assigned
08 Apr 2020Editorial Decision: Revise Minor
11 Apr 20202nd Revision Received
15 Apr 2020Submission Checks Completed
15 Apr 2020Assigned to Editor
04 May 2020Editorial Decision: Accept