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Dissociation of double hydrate and methane hydrate
AIP Conference Proceedings, 2019A comparison of the dissociation of n-propanol double hydrate and methane hydrate at external air temperature 22 °C and at air pressure of 1 bar was carried out experimentally. The particles of the double hydrate showed a significantly higher growth rate in the reactor than particles of gas methane hydrate. Thus, alcohol is a promoter in the generation
Yu. Yu. Bozhko, O. S. Yashutina
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Combustion of methane hydrates
Journal of Engineering Thermophysics, 2013Gas hydrates of methane were obtained under the laboratory conditions, and their structural characteristics were determined there. Kinetics of methane hydrate dissociation in the air atmosphere was studied experimentally. The combined effect of high temperature and pressure gradients was studied and it was shown that in practice it is necessary to take
V. E. Nakoryakov +4 more
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Hydrophobic hydration of methane
Molecular Physics, 1997The method of neutron diffraction and isotopic substitution (NDIS) with H/D substitution on both the solute and the solvent was used to determine the hydration structure of a methane molecule (CM4, M = H or D) in terms of partial pair correlation functions g HM(r) and g OM(r).
De Jong, PHK +3 more
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Mechanisms for Thermal Conduction in Methane Hydrate
Physical Review Letters, 2009Crystalline clathrate hydrates exhibit an unusual thermal transport with glasslike thermal conductivity close to the Debye temperature but a crystal-like temperature dependence at low temperature. Molecular dynamics calculations on structure I methane clathrate hydrate reproduced the qualitative trend in the thermal conductivity.
English N.J., Tse J.S.
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HYDRATES OF METHANE AND HYDROGEN
2019Gas hydrates are icelike solids composed of guest molecules or atoms of gases trapped inside the cages formed within a crystalline host framework (clathrate) of hydrogenbonded water molecules. The report will mainly be devoted to various aspects of the formation and decomposition of methane hydrates, large deposits of which are found in permafrost and ...
Antonov, V.E. +4 more
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Phase Diagram of Methane Hydrates and Discovery of MH-VI Hydrate
The Journal of Physical Chemistry A, 2018Methane hydrate is not only the predominant natural deposits of permafrost and continental margins of Earth but also the dominant methane-containing phase in the nebula and major moons of gas giants. Depending on the surrounding environment (mainly pressure), seven methane hydrate phases have been discovered by experiment or predicted by computer ...
Yingying Huang +5 more
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Numerical Simulation of Methane Production from a Methane Hydrate Formation
Industrial & Engineering Chemistry Research, 2008This paper describes a one-dimensional model for hydrate dissociation in porous media by the depressurization method. A moving boundary, which separates the total simulation zone into two zones, is used. The governing equations consider the convective-conductive heat transfer and mass transfer in the gas and hydrate zones together with the energy ...
LIU Y, STRUMENDO, MATTEO, ARASTOOPOUR H.
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Recovering Methane from Solid Methane Hydrate with Carbon Dioxide
Angewandte Chemie, 2003CO2 in, CH4 out! From NMR spectroscopic measurements of composition and kinetics, it can be shown that the recovery of methane from methane hydrate is possible through its reaction with CO2 (see diagram), even though the yield is less than that expected from kinetic and thermodynamic arguments.
Lee H +4 more
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