Thermodynamic properties of methane and propane hydrates doped by potassium hydroxide

K. V. Gets, R. K. Zhdanov, Yu Yu Bozhko, O. S. Subbotin, V. R. Belosludov

Research output: Contribution to journalConference articlepeer-review

Abstract

Using conjugate gradient and lattice dynamics methods the theoretical study of thermodynamics properties of methane sI and propane sII hydrates doped with small amount of potassium hydroxide was conducted. Potassium hydroxide was partially embedded in the host framework lattice of hydrate. The vibration densities of states were found and the stability of the doped hydrate was confirmed. For a wide range of temperatures the free energy curves were built and compared to results for non-doped hydrate structures. Based on this data the thermal expansion coefficient dependence on the temperature was calculated and the possibility of methane and propane hydrate self-preservation was studied.

Original languageEnglish
Article number012048
JournalJournal of Physics: Conference Series
Volume1675
Issue number1
DOIs
Publication statusPublished - 15 Dec 2020
Event5th All-Russian Scientific Conference Thermophysics and Physical Hydrodynamics with the School for Young Scientists, TPH 2020 - Yalta, Crimea, Ukraine
Duration: 13 Sep 202020 Sep 2020

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