Effects of non-ionic surfactants on the material exchange between crude oil and scCO2
| Autor: | Qingzhao Shi, Chenyu Liu, Jiecheng Cheng, Weihong Qiao, Yong Liu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Chromatography Non ionic Chemistry Extraction (chemistry) food and beverages 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Crude oil Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Oil drop experiment Guerbet reaction 020401 chemical engineering Oil droplet Oil content Materials Chemistry lipids (amino acids peptides and proteins) 0204 chemical engineering Physical and Theoretical Chemistry 0210 nano-technology Spectroscopy Alkyl |
| Zdroj: | Journal of Molecular Liquids. 269:23-28 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2018.08.018 |
| Popis: | The effects of some designed non-ionic surfactants (Guerbet alkyl polyoxyethylene ethers and linear alkyl polyoxyethylene ethers) on the exchange of materials between crude oil and scCO2 were investigated at 359 K. The efficiency of the surfactants was demonstrated by extraction tests, volume change rate tests and compositional analysis of the produced oil. Firstly, extraction tests have shown that the addition of these surfactants can help scCO2 extract more crude oil. Secondly, adding these surfactants significantly increased the volume change rate of the oil droplets. At 15 MPa, the addition of C16(3) increased the volume change rate from 15.862% to 20.165%, indicating more materials were extracted from the oil drop. Finally, by analyzing the recovered oil content, we found that surfactants can promote the exploitation of crude oil. C16(3) + CO2 can recover more short-chain alkanes (C5–C20) than CO2. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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