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Evaluation of interfacial mass transfer coefficient as a function of temperature and pressure in carbon dioxide/normal alkane systems

Nikkhou, F ; Sharif University of Technology | 2015

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  1. Type of Document: Article
  2. DOI: 10.1007/s00231-014-1429-7
  3. Publisher: Springer Verlag , 2015
  4. Abstract:
  5. CO2 gas injection is known as one of the most popular enhanced oil recovery techniques for light and medium oil reservoirs, therefore providing an acceptable mass transfer mechanism for CO2–oil systems seems necessary. In this study, interfacial mass transfer coefficient has been evaluated for CO2–normal heptane and CO2–normal hexadecane systems using equilibrium and dynamic interfacial tension data, which have been measured using the pendant drop method. Interface mass transfer coefficient has been calculated as a function of temperature and pressure in the range of 313–393 K and 1.7–8.6 MPa, respectively. The results showed that the interfacial resistance is a parameter that can control the mass transfer process for some CO2–normal alkane systems, and cannot be neglected. Additionally, it was found that interface mass transfer coefficient increased with pressure. However, the variation of this parameter with temperature did not show a clear trend and it was strongly dependent on the variation of diffusivity and solubility of CO2 in the liquid phase
  6. Keywords:
  7. Carbon dioxide ; Enhanced recovery ; Oil shale ; Oil well flooding ; Paraffins ; Petroleum reservoir engineering ; Petroleum reservoirs ; Well flooding ; Dynamic interfacial tension ; Enhanced oil recovery ; Interfacial mass transfer ; Interfacial resistances ; Mass transfer mechanism ; Mass transfer process ; Temperature and pressures ; Mass transfer
  8. Source: Heat and Mass Transfer/Waerme- und Stoffuebertragung ; Volume 51, Issue 4 , April , 2015 , Pages 477-485 ; 09477411 (ISSN)
  9. URL: http://link.springer.com/article/10.1007%2Fs00231-014-1429-7