Phase Equilibrium for Hydrofluorocarbon R134a Hydrate. Hydrate-Based Desalination of NaCl Salt Solution

Phase Equilibrium for Hydrofluorocarbon R134a Hydrate. Hydrate-Based Desalination of NaCl Salt Solution Full article

Journal

Journal of Engineering Thermophysics
ISSN: 1810-2328 , E-ISSN: 1990-5432

Output data

Year: 2024, Volume: 33, Number: 3, Pages: 652-662 Pages count : 11 DOI: 10.1134/s1810232824030172

Authors

Meleshkin A.V. ¹ , Sagidullin A.K. ^1,2 , Misyura S.Y. ¹ , Morozov V.S. ¹ , Marasanov N.V. ¹ , Glezer V.V. ¹ , Madygulov M.Sh. ³ , Mito M.T. ⁴

Affiliations

1	Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
2	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
3	Institute of the Earth Cryosphere, Tyumen Scientific Center, Siberian Branch, Russian Academy of Sciences, Tyumen, Russia
4	College of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, Abu-Qir, Alexandria, Egypt

Experimental dependences (pressure-temperature) of phase equilibrium of hydrofluorocarbon R134a hydrate have been obtained in aqueous solution of the NaCl salt. The measurements were carried out at a salt concentration in water of 3.25 wt. % in the pressure range from 0.5 to 2.5 bar at temperatures varying from −3 to 10°C. In contrast with the pure water system, the presence of salt in the solution had an inhibitory effect. The equilibrium temperature on the equilibrium curve of R134a hydrate at a set pressure decreased by 12–25%, unlike the temperature for the system with pure water. Combined washing process followed by centrifugation decreased the mass concentration of the salt in the solution by 92% compared to the initial salt concentration.

Meleshkin A.V. , Sagidullin A.K. , Misyura S.Y. , Morozov V.S. , Marasanov N.V. , Glezer V.V. , Madygulov M.S. , Mito M.T.
Phase Equilibrium for Hydrofluorocarbon R134a Hydrate. Hydrate-Based Desalination of NaCl Salt Solution
Journal of Engineering Thermophysics. 2024. V.33. N3. P.652-662. DOI: 10.1134/s1810232824030172 WOS Scopus РИНЦ OpenAlex

Submitted:	Apr 24, 2024
Accepted:	Jul 13, 2024
Published print:	Sep 18, 2024

Web of science:	WOS:001315857400009
Scopus:	2-s2.0-85204309397
Elibrary:	69200922
OpenAlex:	W4402640544

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