Interfacial tension of tri-ethylene glycol-water mixtures in carbon dioxide at elevated pressures
نویسندگان
چکیده
Abstract The study of interfacial tension (IFT) fluid/liquid systems is vital to optimize the design and operation liquid-fluid contactors, in this case, performance carbon dioxide (CO 2 ) dehydration by absorption using tri-ethylene glycol (TEG). Several studies on improving CO with an column containing TEG focused system simulation modeling but so far neglect impact TEG–CO overall performance. This analyzes tension, fluid mixture densities drop volumes + water medium. pendant oscillating u-tube methods a high-pressure densitometer were used measure IFT water–CO , respectively, at temperatures ranging from 10 °C 50 pressures up 250 bars. saturated evaluate recorded profiles. static shows strongly decreasing trend above 40 mN/m less than 5 as pressure increases bars constant temperature (30 °C) factor nearly 6 raised fixed 70 same observed for TEG–water–CO although slight increase $$(\sim$$ ( ∼ mN/m) due content wt% which would have negative effect mass transfer efficiency. Conversely, lower higher favors formation larger interface advantageous transfer. Dynamic attains after around min while volume leveling off corresponding volumetric expansion 14% corresponds solubility 14%. hardly depends superposed counteracting effects slightly increasing buoyancy dropping IFT. For process design, values can be applied reasonable precision, e.g., We-correlations estimate sizes.
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ژورنال
عنوان ژورنال: Journal of Petroleum Exploration and Production Technology
سال: 2023
ISSN: ['2190-0566', '2190-0558']
DOI: https://doi.org/10.1007/s13202-023-01615-4