Systematic investigation of the synergistic effects of novel biosurfactant ethoxylated phytosterol-alcohol systems on the interfacial tension of a water/model oil system
| Autor: | Xu Leng, Dan Jiang, Lijie Xing, Cunqi Jia, Andi Dong, Han Jia, Jibin An, Yilei Song, Hongtao Zhou, Yanguang Zhu |
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| Rok vydání: | 2017 |
| Předmět: |
Chemical process
Chemistry Phytosterol Alcohol 02 engineering and technology urologic and male genital diseases 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surface tension chemistry.chemical_compound Colloid and Surface Chemistry Adsorption Close relationship Water model Organic chemistry sense organs Chemical eor 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 513:292-296 |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2016.10.057 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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