Phase Diagram and High-Pressure Boundary of Hydrate Formation in the Carbon Dioxide−Water System

2009 ◽  
Vol 113 (20) ◽  
pp. 7257-7262 ◽  
Author(s):  
Andrej Yu. Manakov ◽  
Yuriy A. Dyadin ◽  
Andrey G. Ogienko ◽  
Alexander V. Kurnosov ◽  
Eugeny Ya. Aladko ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Phase Diagram ◽  
High Pressure ◽  
Water System ◽  
Hydrate Formation

Phase Diagram and High-Pressure Boundary of Hydrate Formation in the Ethane−Water System

2006 ◽  
Vol 110 (43) ◽  
pp. 21788-21792 ◽  
Author(s):  
Alexander V. Kurnosov ◽  
Andrey G. Ogienko ◽  
Sergei V. Goryainov ◽  
Eduard G. Larionov ◽  
Andrey Y. Manakov ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Water System ◽  
Hydrate Formation

High-pressure / High-temperature Behavior of the Methane-Ammonia- Water System up to 3 GPa

2006 ◽  
Vol 61 (12) ◽  
pp. 1573-1576 ◽  
Author(s):  
Alexander Kurnosov ◽  
Leonid Dubrovinsky ◽  
Alexei Kuznetsov ◽  
Vladimir Dmitriev
Keyword(s):  
High Pressure ◽  
Melting Temperature ◽  
Water System ◽  
Hydrate Formation ◽  
Clathrate Hydrates ◽  
Ammonia Water ◽  
High Pressure High Temperature ◽  
In Situ Experiments ◽  
Diamond Anvil ◽  
Methane Clathrate

Melting phase relations in the methane-ammonia-water system up to 3 GPa have been obtained in a series of in situ experiments in externally heated diamond anvil cells. The melting temperature of methane clathrate hydrates increases rapidly above pressures of ~ 1.5 GPa, and does not appear to be significantly affected by the presence of ammonia. The reaction of the hydrate formation at pressures 2 - 3 GPa is kinetically impeded. Our data show that the high-pressure methane hydrate has the maximum melting temperature among the clathrate hydrates studied so far.

Clathrate Nature of the High-Pressure Tetrahydrofuran Hydrate Phase and Some New Data on the Phase Diagram of the Tetrahydrofuran−Water System at Pressures up to 3 GPa

2003 ◽  
Vol 107 (31) ◽  
pp. 7861-7866 ◽  
Author(s):  
Andrej Yu. Manakov ◽  
Sergey V. Goryainov ◽  
Alexandr V. Kurnosov ◽  
Anna Yu. Likhacheva ◽  
Yuri A. Dyadin ◽  
...  
Keyword(s):  
Phase Diagram ◽  
High Pressure ◽  
Water System ◽  
Hydrate Phase

scholarly journals Gas hydrates at high pressure

2014 ◽  
Vol 70 (a1) ◽  
pp. C900-C900
Author(s):  
J. Loveday ◽  
C. Bull ◽  
A. Frantzana ◽  
C. Wilson ◽  
D. Amos ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Gas Hydrates ◽  
Water System ◽  
X Ray Diffraction ◽  
Ammonia Water ◽  
Fundamental Insight ◽  
Gas Interactions ◽  
Water Gas ◽  
And Storage

The behaviour of gas hydrates at high pressure is of wide interest and importance. Gas hydrates are stablised by water-gas repulsive interactions. Information on the effect of changing density on these water-gas interactions provides fundamental insight into the nature of the water potential. Gas hydrates are also widely found in nature and systems like the ammonia-water and methane-water systems form the basis of 'mineralogy' of planetary bodies like Saturn's moon Titan. Finally, gas hydrates offer the possibility of cheap environmentally inert transportation and storage for gases like carbon dioxide and hydrogen. We have been carrying out investigations of a range of gas hydrates at high pressure using neutron and x-ray diffraction as well as other techniques. Results from these studies including; the phase diagram of the ammonia water system, the occupancies of hexgonal clathrate structures, and new structures in the carbon dioxide water system, will be presented.

scholarly journals Study on the blockage mechanism of carbon dioxide hydrate slurry and its microscopic particle characteristics

RSC Advances ◽  
2018 ◽  
Vol 8 (64) ◽  
pp. 36959-36969 ◽  
Author(s):  
Xiaofang Lv ◽  
Wenqing Li ◽  
Bohui Shi ◽  
Shidong Zhou
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Hydrate Formation ◽  
Microscopic Particle ◽  
Particle Characteristics ◽  
Carbon Dioxide Hydrate ◽  
Series Of Experiments

In order to better understand the process of carbon dioxide hydrate formation and blockage, a series of experiments were performed in a high pressure hydrate experimental loop which has been constructed.

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