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- Title
Thermodynamic and Kinetic Analysis of CH<sub>4</sub>/C<sub>3</sub>H<sub>8</sub> Hydrates for Hydrate-based Gas Separation.
- Authors
Hai Son Truong-Lam; Ju Dong Lee
- Abstract
Gas hydrates have recently attracted attention due to their potential applications in important not only gas separation/recovery but also the related transportation/storage technologies. In this study, hydrate-based gas separation from CH4/C3H8 gas mixture investigated and evaluated. The phase equilibrium condition of which was predicted using the CSMGem software. Hydrate formation from CH4/C3H8 gas mixture 9.5 % C3H8 at 3.7 MPa and 275.15 K was also investigated to determine the separation efficiency of CH4. During hydrate formation, the vapor phase was analyzed by in situ Raman spectroscopy and double-checked by gas chromatography. The Raman data also revealed the structure of the gas hydrate and the time-dependent encapsulation of guest molecules. The experimental results demonstrated that highly concentrated CH4 can be effectively separated from natural gas hydrates; they will be very useful for methane separation/recovery from natural gas.
- Subjects
HYDRATES; THERMODYNAMICS; SEPARATION of gases; NATURAL gas; GAS chromatography
- Publication
CET Journal - Chemical Engineering Transactions, 2022, Vol 97, p13
- ISSN
1974-9791
- Publication type
Article
- DOI
10.3303/CET2297003