期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 85, 期 6, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4884794
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资金
- Australian Research Council [FT0991892]
- CSIRO's Energy Flagship
- Australian Research Council [FT0991892] Funding Source: Australian Research Council
A High Pressure Automated Lag Time Apparatus (HP-ALTA) can measure gas hydrate formation probability distributions from water in a glass sample cell. In an HP-ALTA gas hydrate formation originates near the edges of the sample cell and gas hydrate films subsequently grow across the water-guest gas interface. It would ideally be desirable to be able to measure gas hydrate formation probability distributions of a single water droplet or mist that is freely levitating in a guest gas, but this is technically challenging. The next best option is to let a water droplet sit on top of a denser, immiscible, inert, and wall-wetting hydrophobic liquid to avoid contact of a water droplet with the solid walls. Here we report the development of a second generation HP-ALTA which can measure gas hydrate formation probability distributions of a water droplet which sits on a perfluorocarbon oil in a container that is coated with 1H, 1H, 2H, 2H-Perfluorodecyltriethoxysilane. It was found that the gas hydrate formation probability distributions of such a quasi-free water droplet were significantly lower than those of water in a glass sample cell. (C) 2014 AIP Publishing LLC.
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