气液界面形成气体水合物的实验研究  

Experimental research of gas hydrate formation at gas-liquid interface

作　　者：陆引哲[1] 刘道平[1] 徐煌栋 郑晓倩[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《天然气化工—C1化学与化工》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)

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.

关 键 词：气体水合物 气液界面 成核时间 生长时间 生长率 

分 类 号：TQ02[化学工程] TE8[石油与天然气工程—油气储运工程]