摘要
应用阻抗测量技术测试了多孔介质中CO2 水合物的形成和分解过程。实验结果表明,阻抗测量可以反映水合物的形成特征。水合物在形成过程中的成核具有一定的随机性,说明相同温压条件下 CO2水合物的成核机会均等。分解过程的热量吸收,可能形成体系内外的温度梯度。阻抗测量技术可以应用于水合物形成过程中的热过程和热力学研究。
The course of formation and dissociation of CO_2 hydrate was understood via measurement of impedance in the porous medium, and the experiment result shows that the impedance can reflect the process of hydrate formation. Nucleation is random in the course of hydrate formation, indicating that CO_2 hydrate has the same chance of nucleation under the same temperature and pressure conditions. Temperature gradient inside or outside the system may be formed from heat absorbance in the process of dissociation. The technique of impedance measurement can be applied to the study of thermal process and kinetics in the formation of hydrate.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
2005年第1期137-142,共6页
Marine Geology & Quaternary Geology
基金
国家高科技研究开发计划(863)项目(2001AA6110 20)
关键词
多孔介质
模拟实验
阻抗测量
水合物
porous medium
simulated experiment
impedance measurement
hydrate
