摘要
研究气体水合物成核过程是水合物动力学研究的重要内容之一,有助于人们更好地认识气体水合物生成过程,掌握其动力学规律,进而有效地进行气体水合物的开发利用。本研究通过在实验室内模拟实验合成CO2水合物,利用电学探测技术研究其成核过程,建立了水合物成核速率与阻抗关系的模型,并结合具体实验条件对模型进行拟合求解,得到水合物成核速率变化趋势。同时发现水合物生成诱导时间受水分子记忆效应的影响。
The study of gas hydrate nucleation process is one of the most important areas of hydrate kinetics research, which is helpful for people to well know the formation process and the kinetics rule of gas hydrate, and further to make good use of it. In laboratory the CO2 hydrate was synthesized by simulation experiment and its nucleation process was analyzed by electrical resistance variation, based on which a primarily theoretical nucleation model was set up. Combined with the experimental parameters, the nucleation speed could be calculated and the relationship between nucleation speed and reaction time was found. It is also found that the induction time could be changed by the memory effect of water molecules.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2008年第3期345-349,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
中国海域天然气水合物资源调查评价专项项目(G2H200200202)资助
关键词
水合物成核
多孔介质
诱导时间
电学探测
hydrate nucleation
porous media
induction time
electrical resistance
