期刊
JOURNAL OF ENERGY CHEMISTRY
卷 24, 期 3, 页码 309-314出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S2095-4956(15)60316-3
关键词
gas hydrates; dry water; supercooled liquid water; ice; hydrate dissociation
资金
- Council for Grants of the President of the Russian Federation [NSh 3929.2014.5]
- RAS [8]
- Siberian branch of the RAS [144]
The results on a dissociation behavior of propane hydrates prepared from dry water and contained unreacted residual water in the form of ice inclusions or supercooled liquid water (water solution of gas) were presented for temperatures below 273 K. The temperature ramping or pressure release method was used for the dissociation of propane hydrate samples. It was found that the mechanism of gas hydrate dissociation at temperatures below 273 K depended on the phase state of unreacted water in the hydrate sample. Gas hydrates dissociated into ice and gas if the ice inclusions were in the hydrate sample. The samples of propane hydrates with inclusions of unreacted supercooled water only (without ice inclusions) dissociated into supercooled water and gas below the pressure of the supercooled water-hydrate-gas metastable equilibrium.
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