Influence of the crystallization rate on the mixed hydrate: experimental and modelling work

The determination of the volume and precise composition of clathrate hydrates is raising importance with respect to the possible industrial applications of the gas separation and storage and due to lack of data in literature. Therefore, in this work, the volume and composition of hydrate phase during the crystallization and final state, regarding to the rate of crystallization have been investigated. A thermodynamic model, implementing classic van der Waals and Platteuw model, was also used. The results show that from the same initial conditions, the final pressure, hydrate composition and water conversion are slightly different for two different crystallization processes.