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Mechanistic study on the dynamic interfacial tension of crude oil + water systems: Experimental and modeling approaches

Lashkarbolooki, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.jiec.2016.01.025
  3. Publisher: Korean Society of Industrial Engineering Chemistry
  4. Abstract:
  5. This study investigates dynamic interfacial tension (DIFT) of acidic crude oil (ACO) and non acidic/basic crude oils (BCO) + deionized water (DW) as a function of pressure from 500 to 4000 psi, and temperature from 30 to 80 °C using an axisymmetric drop shape analysis (ADSA) technique. DIFTs are also modeled using dynamic adsorption model, mono-exponential decay model, and empirical equations. The results showed that if a reduction in the surface excess concentration due to increasing temperature overlooks the total entropy of the molecules in the system, an increase in IFT would be expected
  6. Keywords:
  7. Adsorption ; Crude oil ; Dynamic IFT ; Model ; Natural surface active material ; Adsorption ; Deionized water ; Models ; Axisymmetric drop shape analysis ; Dynamic interfacial tension ; Exponential decay models ; Function of pressure ; Increasing temperatures ; Mechanistic studies ; Natural surface ; Surface excess concentration ; Crude oil
  8. Source: Journal of Industrial and Engineering Chemistry ; Volume 35 , 2016 , Pages 408-416 ; 1226086X (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1226086X16000307