Characteristics of Natural Gas Hydrate Growth on the Pendant Water Droplet
ZHOGN Dong-liang LIU Dao-ping WU Zhi-min ZHANG Liang WU De-hu
Institute of Refrigeration Technology, University of Shanghai for Science and Technology Power Engineering College, University of Shanghai for Science and Technology Institute of Refrigeration Technology, University of Shanghai for Science and Technology Power Engineering College, University of Shanghai for Science and Technology
Abstract：Aiming at the water spray formation of natural gas hydrate, a set of experimental apparatus was designed and built to study the natural gas hydrate formation on the pendant water droplet, the growth morphology of gas hydrate on the pendant water droplet under different pressures and temperatures was observed. The growth model of hydrate film on the surface of water droplet was established, and the effects of driving force, subcooling, hydration reaction rate, gas diffusivity and sodium dodecyl sulfate (SDS) concentration on the hydrate film growth were investigated. The results showed that the growth rate of hydrate film increased with the increase of subcooling degree, the measured growth rate was between 0.24 and 0.39 mm/s. The hydrate growth was inside diffusion control, the activation energy of natural gas hydrate was 13.01 kJ/mol. The reaction rate constant on the reaction interface had the maximum value of 0.0027 m/s with SDS concentration in 550 mg/L.
钟栋梁 刘道平 邬志敏 张亮 伍德虎. 悬垂水滴表面天然气水合物的生长特性[J]. , 2008, 8(4): 746-750.
ZHOGN Dong-liang LIU Dao-ping WU Zhi-min ZHANG Liang WU De-hu. Characteristics of Natural Gas Hydrate Growth on the Pendant Water Droplet. , 2008, 8(4): 746-750.
2008, Vol. 8 
