Results 1 to 10 of about 18,626 (208)
Methane gas hydrates of the Black Sea – environmental problem or energy source?
Journal of Innovations and Sustainability, 2022 Purpose. The purpose of this paper is to substantiate the technological solution of equilibrium conditions in the system “methane – water phase – hydrate – R-2M”; to reveal existing ecological problems of methane gas hydrate extraction from the Black Sea
Oleksandr Nalyvaiko +3 more
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Transformations in methane hydrates [PDF]
Proceedings of the National Academy of Sciences, 2000 Detailed study of pure methane hydrate in a diamond cell within situoptical, Raman, and x-ray microprobe techniques reveals two previously unknown structures, structure II and structure H, at high pressures. The structure II methane hydrate at 250 MPa has a cubic unit cell ofa= 17.158(2) Å and volumeV= 5051.3(13) Å3; structure H at 600 MPa has a ...
I M, Chou +8 more
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Physical Experiment Research on Dielectric Properties of Hydrate-bearing Sediment in Sandstone Reservoir [PDF]
E3S Web of Conferences, 2019 Dielectric constants can be used to detect hydrates in permafrost regions. Therefore, this study investigated the relationships between the dielectric constant characteristics of sandstone reservoir hydrate and the hydrate saturation degree through ...
Du Bing-rui +4 more
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Effect of ethanol concentration on methane hydrate decomposition: MD simulation insights
Journal of Materials Research and Technology, 2021 The controllability of mining is a key factor affecting the commercial application of methane hydrates, and the addition of chemical additives can significantly accelerate the mining process.
Xiaoliang Sun +9 more
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Influence of Selected Parameters on the Rate Nucleation of Methane Hydrates [PDF]
MATEC Web of Conferences, 2020 The demand for energy is growing in the world, and therefore attention has been focused on the use of possible alternative energy sources. For countries with limited access to common hydrocarbon gases, methane hydrates appear to be a potential source of ...
Hečko Dávid +3 more
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Experimental analysis of the CO2/CH4 Replacement Efficiency due to Sodium Chloride Presence in Natural Gas Hydrates Reservoirs [PDF]
E3S Web of Conferences, 2020 Nowadays natural gas hydrates represent a promising opportunity for counteracting several crucial issues of the 21th century. They are a valid answer to the continuously increasing energy demand, moved by the global population growth; moreover ...
Gambelli Alberto Maria +4 more
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Mining of methane from deposits subaquatic gas hydrates using OTEС [PDF]
E3S Web of Conferences, 2021 The article proposes to using Ocean Thermal Energy Conversion (OTEC) to increase the energy efficiency mining of methane from deposits subaquatic gas hydrates on the gas hydrate cycle (GHET), that will allow not to spend 10-15% of the extracted methane ...
Klymenko Vasyl +4 more
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Methane Hydrates – Australian perspective [PDF]
Mining of Mineral Deposits, 2016 We wish to thank Dr. Edward Rravets, Technical Consultant, Rainbow Pty. Ltd., China for his support and encouragement for the work presented here. We also thank Mr. Oleg Pogreb, Technident Pty. Ltd. for his willingness to share his knowledge, information and data on unconventional gas production in Australia.
Koltun, P, Klymenko, V
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Open questions on methane hydrate nucleation [PDF]
Communications Chemistry, 2021 The commercial use of natural methane hydrate is hampered by several open questions that remain regarding hydrate formation. Here the authors comment on past interpretations and aim to provide a roadmap for developing a predictive theory of methane hydrate nucleation.
Guang-Jun Guo, Zhengcai Zhang
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Intensifying the process of methane gas hydrates crystallization in the presence of surface-activated substances [PDF]
E3S Web of Conferences, 2021 The crystallization process of gas hydrates during their formation in the presence of surface-active substances (SAS) is studied. The research is conducted in two directions – theoretical and experimental. Experimental data on the crystallization rate of
Svietkina Olena +3 more
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