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Systematic investigation of the synergistic effects of novel biosurfactant ethoxylated phytosterol-alcohol systems on the interfacial tension of a water/model oil system.
- Source :
-
Colloids & Surfaces A: Physicochemical & Engineering Aspects . Jan2017, Vol. 513, p292-296. 5p. - Publication Year :
- 2017
-
Abstract
- Increasing attention has been paid to the potential applications of biodegradable or natural surfactants in various fields, including chemical enhanced oil recovery (EOR), since the use of eco-friendly chemical processes was first proposed. The novel nonionic biosurfactant, ethoxylated phytosterols (BPS-n), was introduced to chemical EOR for the first time. The BPS-n showed a satisfactory ability to reduce the interfacial tension (IFT) between water and a model oil ( n -octane) when the effects of BPS-n concentration, salinity and temperature were investigated. Several typical alcohols have been used as cosurfactants to further reduce the IFT through synergistic effects with BPS-30. Interestingly, there may be a close relationship between the ability to reduce the IFT and the hydrophobic chain length of the alcohol. Based on the adsorption and stereo-hindrance effect, we proposed a reasonable explanation for this relationship. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09277757
- Volume :
- 513
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces A: Physicochemical & Engineering Aspects
- Publication Type :
- Academic Journal
- Accession number :
- 120047394
- Full Text :
- https://doi.org/10.1016/j.colsurfa.2016.10.057