Determination of CO2 Hydrate Interfacial Tension in the Solution

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jafar Towfighi¹  Mehrdad Mantegian¹  Alireza Azimi¹ 

[1] Faculty of Chemical Engineering, Tarbiat Modares University

关键词: Interfacial Tension;    CO2 Hydrate;    Crystallization;    Nucleation;   

DOI  :  10.1252/jcej.11we006

来源: Maruzen Company Ltd

【 摘 要 】

References(35)The Induction time in CO2 hydrate crystallization has been measured in a batch system under various experimental conditions. Correlation of the induction time with the solution supersaturation depicted by the Classical Nucleation Theory (CNT) led to determination of the interfacial tension between CO2 hydrate and water at various temperatures, pressures and solution concentrations. The experimental data have indicated that the induction time decreases with increasing solution concentration at any constant temperature, while the interfacial tension increases with rising temperature. The theory can satisfactorily predict the experimental data. Furthermore, an empirical correlation, based on the famous power law for the rate of nucleation, has been applied and the order of nucleation is thereby obtained. Calculated values for the interfacial tension have been compared with predictions obtained by two conventional models.

【 授权许可】

Unknown