Double Freon Hydrates: Composition and Thermodynamic Properties

Journal of Engineering Thermophysics - Tập 32 - Trang 62-68 - 2023
Yu. Yu. Bozhko1,2, R. K. Zhdanov1,2, K. V. Gets1,2, O. S. Subbotin1,2, V. R. Belosludov1,2
1Novosibirsk State University, Novosibirsk, Russia
2Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

Tóm tắt

The paper presents the results of calculations of the P-T diagram of “ice phase (liquid phase)–gas phase–hydrate phase” equilibrium for freons R23 and R34a and 90%R23+10%R134a mixture. It is shown the freon R134a forms a stable CS-II hydrate phase in the temperature range of 260–280 K and pressure range of 0.0267–0.21 MPa and freon R23 creates a stable CS-I hydrate phase in the temperature range of 260–280 K and pressure range of 0.238–0.75 MPa. The calculation results are consistent with the known experimental data. It is shown that addition of 10% of R134a to the freon mixture results in the formation of CS-II hydrate phase in the temperature range of 260–280 K and pressure range of 0.0167–0.15 MPa.

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Journal of Engineering Thermophysics

Tập 32

62-68

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