Abstract
The tertiary butylamine hydrate, 16(CH3)CNH2·156H2O, with type VI structure is a true clathrate (Jeffrey, 1984); there is no evidence of hydrogen-bonding between the amine molecule and the water framework. In this work, the mixed hydrate formation and structure were measured using spectroscopic methods such as NMR and XRD. These two spectroscopic measurements made it sure that P-T equilibrium results were show good agreement with hydrate structure. So these data can be very helpful to understand the basic phase behavior of gas hydrate. In results, it was confirmed that the tertiary butylamine molecules occupied the large cages when pure tertiary butylamine hydrate was formed and methane molecules were captured in the small cages of tertiary butylamine hydrate was formed, respectively from the NMR result. To confirm the hydrate structure formed, XRD data were obtained and calculated to get a structure parameter. The tertiary butylamine molecules act as a strong promoter in gas hydrate formation. Methane is main component in the natural gas, so these results also can be used to separation process by using natural gas hydrate.
