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Mobilization of n-hexadecane in porous media using food grade amphiphiles.
- Source :
-
Colloids & Surfaces A: Physicochemical & Engineering Aspects . Dec2018, Vol. 558, p123-129. 7p. - Publication Year :
- 2018
-
Abstract
- Graphical abstract Abstract A model liquid hydrocarbon (n-hexadecane) was used to gain insight on the mobilization of non-aqueous phase liquids (NAPLs) trapped in porous formations, important for both enhanced oil recovery (EOR) and oil spill remediation in porous media. Food-grade surfactants lecithin from soy and tween 80 were compared to commercial dispersant Corexit 9500A, for their ability to mobilize the hydrocarbon originally trapped in a water-filled cryolite porous medium. Red dye was added to the n-Hexadecane to improve visualization, and the aqueous phase incorporated different ratios of the surfactants Lecithin and Tween 80 to seek synergistic benefits when the two surfactants are combined. Visual-microscopic flooding experiments carried on a miniature packed bed produced images which were then analyzed using grayscale image analysis. It was determined that a ratio 40:60 by weight of Lecithin to Tween 80 has the best performance in the mobilization of n-hexadecane from the porous media. Furthermore, any (non-optimal) mixture of lecithin and tween 80 exhibited a better (synergistic) performance in n-Hexadecane recovery from the porous media than when applying either surfactant separately. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POROUS materials
*AMPHIPHILES
*OIL spills
*ENHANCED oil recovery
*DISPERSING agents
Subjects
Details
- Language :
- English
- ISSN :
- 09277757
- Volume :
- 558
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces A: Physicochemical & Engineering Aspects
- Publication Type :
- Academic Journal
- Accession number :
- 132487144
- Full Text :
- https://doi.org/10.1016/j.colsurfa.2018.08.061