Abstract
The formation of methane hydrate films at the surface of suspended water droplets has been experimentally investigated using a novel experimental apparatus. Experiments were performed at a temperature between 273.35 and 275.15 K and a pressure between 4.01 and 6.65 MPa. The observed morphology of hydrate films showed that the growth rate of methane hydrate formed at the droplet surface is significantly increased as the supersaturation (Δ μ/ kT) is increased and the droplet size is reduced. The induction time of hydrate nucleation is influenced by the degree of supersaturation. A longer induction time was obtained at a lower supersaturation. The measured induction times were correlated to an induction time model developed based on the nucleation theory. A high value of kinetic constant and a low value of effective surface energy were obtained. The results indicated that heterogeneous nucleation of methane hydrate was occurring at the suspended water droplets. The diffusion resistance in the hydrate film was increased as the temperature was decreased and the hydrate film thickened.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
