| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 |
21권 1호, p.746 |
| 발표분야 |
이동현상 |
| 제목 |
Viscosity and Stability Measurement of CO2-in-Water Foam with Anionic Polypropoxylate Surfactants |
| 초록 |
For CO2EOR (enhanced oil recovery utilizing CO2) application, a series of polypropoxylated sulfate surfactants was synthesized from dodecanol, and CO2-in-Water foams prepared with the surfactants were characterized by a set of high-pressure recirculation apparatus. Stability and apparent viscosity of CO2-in-water foam were measured for experimental conditions from 35 to 55 oC up to the pressure of 3,600 psi. The effects of temperature and pressure were systematically analyzed for foams consisting of 1 wt.% of the anionic surfactant, water and CO2 with 50:50 weight ratio. Stability of the foam was measured by observing the foam layer thickness over time as seen in a 8 cm-long macroscopic view tube. The apparent viscosity was calculated from the pressure drop measured in a length of capillary tubes with known inner diameters by using Hagen-Poiseuille equation. With varying shear rate, the CO2-in-water foams exhibited a pseudoplastic (shear-thinning) behavior of decreasing apparent viscosities with increasing flow rate. The foam also showed an increasing stability with increases in the pressure and the temperature, as the solvent quality of CO2 increased with increasing pressure and temperature. |
| 저자 |
Ria Ayu Pramudita, 김연지, 류원선
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| 소속 |
홍익대 |
| 키워드 |
enhanced oil recovery; CO2-in-water foam; surfactant; viscosity; stability
|
| E-Mail |
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| 원문파일 |
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