Journal
AICHE JOURNAL
Volume 61, Issue 8, Pages 2611-2617Publisher
WILEY
DOI: 10.1002/aic.14898
Keywords
nucleation; hydrates; nucleation curve; nucleation rate; gas hydrate; natural gas
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Funding
- Australian Research Council [FT0991892]
- CSIRO's Energy Flagship
- Australian Research Council [FT0991892] Funding Source: Australian Research Council
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Heterogeneous nucleation probability distributions of gas hydrates on a water droplet that was supported by inert and immiscible perfluorocarbon oil, perfluorodecalin is studied. The guest gas used was a mixture of 90 mol % methane and 10 mol % propane. The probability distribution was measured using a high pressure automated lag time apparatus under the guest gas pressure range of 6.7-12.5 MPa and the cooling rate range of 0.002-0.02 K/s. Nucleation curves were derived for unit area of water surface. The nucleation rate per unit area of water surface that was contained in a glass sample cell, which differed significantly from that on a quasi-free water droplet, is also derived. It is concluded that the nucleation curves in the presence of a solid wall should be normalized to the unit length of the three-phase line at which water, guest gas, and the solid wall meet. (c) 2015 American Institute of Chemical Engineers AIChE J, 61: 2611-2617, 2015
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