Migration of a single gas bubble in water during the formation of stable gas-hydrate crust on its surface

被引：0
作者：
V. Sh. Shagapov
A. S. Chiglintseva
A. A. Rusinov
B. I. Tazetdinov
机构：
[1] Russian Academy of Sciences,Institute of Mechanics and Engineering, Kazan Science Center
[2] Russian Academy of Sciences,Institute of Mechanics, Ufa Branch
[3] Birsk Branch of Bashkir State University,undefined
来源：
Theoretical Foundations of Chemical Engineering | 2017年 / 51卷
关键词：
gas-hydrate particle; hydrate-forming component; methane bubble; hydrate crust; intensity; heat removal; diffusive resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A theoretical model of gas-hydrate formation during the migration of the methane bubble in water under thermobaric conditions of hydrate stability has been considered. Numeric solutions were obtained and analyzed for two limiting cases when the rate of formation of the hydrate crust on bubble surface is constrained by the intensity of heat removal, which is released during hydrate-formation process by the surrounding water or the diffusive resistance of gas hydrate crust against the transfer of hydrate-forming components. A comparative analysis of the numeric results with the experimental data showed that the diffusive transfer of hydrate-forming components through the crust most adequately described the process of hydrate-particle growth that was observed in experiments during the ascent of methane particles in seawater. The conditions of the best agreement between the theoretical and experimental data on changing of radius of gas-hydrate particle allowed numeric estimates to be obtained for values of the reduced coefficient of gas and water diffusion through the hydrate crust.
引用
收藏
页码：216 / 223
页数：7
相关论文
共 58 条
[1]  
Sauter E.J.(2006)Methane discharge from a deep-sea submarine mud volcano into the upper water column by gas hydrate-coated methane bubbles Earth Planet. Sci. Lett. 243 354-undefined
[2]  
Muyakshin S.I.(2004)Rising methane gas bubbles form massive hydrate layers at the seafloor Geochim. Cosmochim. Acta 68 4335-undefined
[3]  
Charlouc J.-L.(2006)1300-m-high rising bubbles from mud volcanoes at 2080 m in the Black Sea: hydroacoustic characteristics and temporal variability Earth Planet. Sci. Lett. 244 1-undefined
[4]  
Schlütera M.(2012)Geological control and magnitude of methane ebullition from a high-flux seep area in the Black Sea—the Kerch seep area Mar. Geol. 319–322 57-undefined
[5]  
Boetius A.(2014)Widespread methane leakage from the sea floor on the northern US Atlantic margin Nat. Geosci. 7 657-undefined
[6]  
Jerosch K.(2014)A water column study of methane around gas flares located at the West Spitsbergen continental margin Cont. Shelf Res. 72 107-undefined
[7]  
Damm E.(2002)Enhanced lifetime of methane bubble streams within the deep ocean Geophys. Res. Lett. 29 21-undefined
[8]  
Foucher J.P.(2014)Thermogenic methane injection via bubble transport into the upper Arctic Ocean from the hydrate-charged Vestnesa Ridge, Svalbard Geochem. Geophys. Geosyst. 15 1945-undefined
[9]  
Klages M.(2012)Phenomenological diffusion theory of formation of gas hydrate from ice powder Theor. Found. Chem. Eng. 46 576-undefined
[10]  
Haeckel M.(1992)Dynamics of bubbles in conditions of gas hydrate formation Fluid Dyn. 27 664-undefined
123456