Systematic investigation of the effects of mixed cationic/anionic surfactants on the interfacial tension of a water/model oil system and their application to enhance crude oil recovery
| Autor: | Xu Leng, Hongtao Zhou, Yanguang Zhu, Yipu Liang, Peng Lian, Jingping Liu, Han Jia, Mei Hu, Yilei Song, Hongyan Wu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Chromatography Cationic polymerization 02 engineering and technology Polymer Decane 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Toluene 0104 chemical sciences Surface tension chemistry.chemical_compound Colloid and Surface Chemistry Chemical engineering chemistry Ionic liquid Water model Sodium dodecyl sulfate 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 529:621-627 |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2017.06.055 |
| Popis: | A mixed cationic surface-active ionic liquid/anionic surfactant system consisting of N -dodecyl- N -methylpyrrolidinium bromide (L12) and sodium dodecyl sulfate (SDS) was used for chemical enhanced oil recovery (EOR). The mixed L12/SDS surfactant system could cause remarkable effects on the interfacial tension (IFT) between water and a model oil (toluene and n -decane, v:v = 1:1), and the strength of the effect depended on the L12/SDS molar ratio. The effects of temperature and salinity on the IFT were systematically investigated to verify the mechanism of the mixed surfactants at the interface. Moreover, the mixed L12/SDS surfactant system showed the desired ability to reduce the IFT of water/crude oil, greatly improving oil recovery with the assistance of a polymer in core flooding tests. |
| Databáze: | OpenAIRE |
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