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Title

Interfacial tension between CO2 and brine (NaCl + CaCl2) at elevated pressures and temperatures: The additive effect of different salts

Publication Year

2011

Author(s)
  • Aggelopoulos, C. A.
  • Robin, M.
  • Vizika, O.
Source
ADVANCES IN WATER RESOURCES Volume: 34 Issue: 4 Pages: 505-511 Published: 2011
ISSN
0309-1708
Abstract

An extensive laboratory study was conducted to measure the interfacial tension (IFT) between CO2 and brine consisting in equal molal concentrations of NaCl and CaCl2. The experiments were repeated at various pressures, temperatures and salinities that are representative of conditions prevailing during CO2 storage in deep saline aquifers. The dependence of CO2/brine IFT on pressure and temperature is similar to that previously reported for the systems: CO2/NaCl solution and CO2/CaCl2 solution. CO2/brine IFT increases linearly with water salinity and the magnitude of this increase was found equal to the sum of the individual CO2/NaCl solution and CO2/CaCl2 solution IFT increments, indicating a strong additive effect on IFT when the brine is composed of various salts. (C) 2011 Elsevier Ltd. All rights reserved.

Author Keyword(s)
  • CO2 storage
  • Interfacial tension
  • Brine
  • Cations
  • Saline aquifers
KeyWord(s) Plus
  • CARBON-DIOXIDE
  • SALINE AQUIFERS
  • SURFACE-TENSION
  • ELEVATED PRESSURES
  • GEOLOGICAL STORAGE
  • AQUEOUS-SOLUTIONS
  • GAS-RESERVOIRS
  • ION HYDRATION
  • WATER
  • SEQUESTRATION
ESI Discipline(s)
  • Engineering
  • Environment/Ecology
Web of Science Category(ies)
  • Water Resources
Adress(es)

[Aggelopoulos, C. A.; Robin, M.; Vizika, O.] IFP Energies Nouvelles, F-92852 Rueil Malmaison, France

Reprint Adress

Aggelopoulos, CA (reprint author), IFP Energies Nouvelles, 1&4 Ave Bois Preau, F-92852 Rueil Malmaison, France.

Country(ies)
  • France
CNRS - Adress(es)
    Accession Number
    WOS:000289185500007
    uid:/X1W3J7RJ
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