Azira, Hakima and Tazerouti, Amel
and Canselier, Jean-Paul
Phase behavior of pseudoternary brine/alkane/alcohol-secondary alkanesulfonates systems.Surfactant ratio effects of salinity and alcohol.
(2008)
Journal of Thermal Analysis and Calorimetry, 92 (3). 759-763 . ISSN 1388-6150
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 258kB |
Official URL: http://dx.doi.org/10.1007/s10973-007-8388-x
Abstract
Dodecanesulfonates (isomer mixtures) have been synthesized by the process developed in our laboratory. First, pseudoternary phase diagrams of the water or (brine) decane/ dodecanesulfonates-butan-1-ol systems were drawn and compared with those of a commercial sample (Hostapur 60). In the presence of NaCl, a three-phase region (Winsor III) appears for the two systems, and is larger with the home-made surfactants. This region is interesting in enhanced oil recovery because it leads to very low interfacial tensions. Then, the behavior of the Winsor III region was investigated as a function of the alcohol/surfactant mass ratio (C/T). At a constant salinity (2.5 wt. % NaCl) a value of 2 for C/T gives the best compromise for a larger W III region with both systems. For this ratio, optimal salinity values of 1.55 and 1.65 mass % for our sample and Hostapur 60, were found, respectively
| Item Type: | Article |
|---|---|
| Additional Information: | Thanks to Springer Verlag. The definitive version is available at https://link.springer.com/article/10.1007%2Fs10973-007-8388-x |
| HAL Id: | hal-03577195 |
| Audience (journal): | International peer-reviewed journal |
| Uncontrolled Keywords: | |
| Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
| Laboratory name: | Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS) |
| Statistics: | download |
| Deposited On: | 22 Jul 2009 14:58 |
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