| 초록 |
In this study, we introduce a new hydrate formers, Isopropylamine, Dimethylamine, and Trimethylamine. And we identify the structure and guest distributions through spectroscopic tools including High-Resolution Powder Diffraction (HRPD), 13C solid-state NMR and Raman spectroscopy. Isopropylamine has sII structure. But other hydrate structures are unexpected one because Dimethylamine is too small to make sH hydrate and Trimethylamine hydrate has no 512cage for CH4. And here, the (L + H + V) phase equilibrium data of (X + CH4) hydrates (X = Isopropylamine, Dimethylamine, and Trimethylamine) were also measured at pressures from (5 to 11) MPa. And we change the concentration of host amine(5.56mol%, 4mol%, 2mol%,), then we get more phase equilibrium data. |
