摘要
实验观测了静止气液界面气体水合物的形成,通过分析讨论在不同的气相压力和反应釜温度下界面处形成气体水合物的生长形态、诱导时间、生长时间以及生长速率的变化,揭示了气液界面水合物的成核以及生长规律。随着压力的增大和温度的降低,水合物膜的成核时间和生长时间都随之减小,水合物膜平均生长率呈现增长趋势;在一定的压力和温度下,当水合物膜生长到一定程度时生长形态基本无变化。
The formation of natural gas hydrate at gas-liquid interface was investigated experimentally, and through analyzing the growth characteristics, nucleation time, growth time and average growth rate of gas hydrate formation under different pressure and temperature, the nucleation and growth rules of gas hydrate at gas-liquid interface were revealed. The times needed in hydrate crystallization, nucleation and growth decreased and the average growth rate of hydrate membrane increased with increase in pressure or decrease in temperature. When the hydrate membrane grew to a certain extent under certain pressure and temperature, the hydrate growth habit substantially unchanged.
出处
《天然气化工—C1化学与化工》
CAS
CSCD
北大核心
2014年第6期34-38,共5页
Natural Gas Chemical Industry
基金
上海市重点学科建设项目(S30503)
关键词
气体水合物
气液界面
成核时间
生长时间
生长率
gas hydrate
gas-liquid interface
nucleation time
growth time
growth rate
