Greenhouse Gas (CHF₃) Separation by Gas Hydrate Formation

In this study, the feasibility of gas hydrate-based greenhouse gas (CHF3) separation was investigated with a primary focus on thermodynamic, structural, and cage-filling characteristics of CHF3 + N2 hydrates. The three-phase (hydrate (H)–liquid water (LW)–vapor (V)) equilibria of CHF3 (10%, 20%, 40%, 60%, and 80%) + N2 + water systems provided the thermodynamic stability conditions of CHF3 + N2 hydrates. Powder X-ray diffraction revealed that...