Thermodynamic Stability of H2+ Tetrahydrofuran Mixed Gas Hydrate in Nonstoichiometric Aqueous Solutions

2007 ◽  
Vol 52 (2) ◽  
pp. 517-520 ◽  
Author(s):  
Shunsuke Hashimoto ◽  
Takeshi Sugahara ◽  
Hiroshi Sato ◽  
Kazunari Ohgaki
Keyword(s):  
Aqueous Solutions ◽  
Thermodynamic Stability ◽  
Gas Hydrate ◽  
Mixed Gas

Thermodynamic stability of hydrogen + tetra-n-butyl ammonium bromide mixed gas hydrate in nonstoichiometric aqueous solutions

2008 ◽  
Vol 63 (4) ◽  
pp. 1092-1097 ◽  
Author(s):  
Shunsuke Hashimoto ◽  
Takeshi Sugahara ◽  
Masato Moritoki ◽  
Hiroshi Sato ◽  
Kazunari Ohgaki
Keyword(s):  
Aqueous Solutions ◽  
Thermodynamic Stability ◽  
Gas Hydrate ◽  
Ammonium Bromide ◽  
Mixed Gas

Dissociation Behavior of Methane−Ethane Mixed Gas Hydrate Coexisting Structures I and II

2010 ◽  
Vol 114 (35) ◽  
pp. 9456-9461 ◽  
Author(s):  
Masato Kida ◽  
Yusuke Jin ◽  
Nobuo Takahashi ◽  
Jiro Nagao ◽  
Hideo Narita
Keyword(s):  
Gas Hydrate ◽  
Mixed Gas

Bromine chloride clathrate gas hydrate

1969 ◽  
Vol 47 (24) ◽  
pp. 4651-4654 ◽  
Author(s):  
D. N. Glew ◽  
D. A. Hames
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Gas Hydrate ◽  
Enthalpy Of Fusion ◽  
Bromine Chloride ◽  
Chloride Hydrate

Bromine chloride hydrate, prepared free of excess halogen, has been analyzed directly to give the formula BrCl•7.77 ± 1.58 H2O. The halogen is found to be bromine-rich in the hydrate and bromine-deficient in the aqueous solution at 5 °C. Aqueous solutions in equilibrium with the hydrate between 1 and 15 °C have been analyzed and yield the bromine chloride hydrate enthalpy of fusion 10 450 ± 860 cal/mole which leads to the formula BrCl•7.28 ± 0.60 H2O. It is concluded that bromine chloride forms a normal clathrate-type gas hydrate of formula BrCl•7.34 H2O, and that the frequently quoted formula BrCl•4 H2O is wrong.

Mixed gas hydrate structures at the Chapopote Knoll, southern Gulf of Mexico

2010 ◽  
Vol 299 (1-2) ◽  
pp. 207-217 ◽  
Author(s):  
Stephan A. Klapp ◽  
M. Mangir Murshed ◽  
Thomas Pape ◽  
Helmut Klein ◽  
Gerhard Bohrmann ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Gas Hydrate ◽  
Mixed Gas ◽  
Southern Gulf Of Mexico

Dissociation behavior of pellet shaped mixed gas hydrate samples that contain propane as a guest

2006 ◽  
Vol 47 (15-16) ◽  
pp. 2491-2498 ◽  
Author(s):  
Taro Kawamura ◽  
Yasuhide Sakamoto ◽  
Michika Ohtake ◽  
Yoshitaka Yamamoto ◽  
Takeshi Komai ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Mixed Gas

scholarly journals Gas Hydrate Combustion in Five Method of Combustion Organization

Entropy ◽  
2020 ◽  
Vol 22 (7) ◽  
pp. 710
Author(s):  
Sergey Y. Misyura ◽  
Andrey Yu. Manakov ◽  
Galina S. Nyashina ◽  
Olga S. Gaidukova ◽  
Vladimir S. Morozov ◽  
...  
Keyword(s):  
Gas Hydrates ◽  
Gas Hydrate ◽  
Thick Layer ◽  
Combustion Products ◽  
Dissociation Rate ◽  
Powder Layer ◽  
Muffle Furnace ◽  
Mixed Gas ◽  
Harmful Emissions ◽  
Burning Coal

Experiments on the dissociation of a mixed gas hydrate in various combustion methods are performed. The simultaneous influence of two determining parameters (the powder layer thickness and the external air velocity) on the efficiency of dissociation is studied. It has been shown that for the mixed hydrate, the dissociation rate under induction heating is 10–15 times higher than during the burning of a thick layer of powder, when the combustion is realized above the layer surface. The minimum temperature required for the initiation of combustion for different combustion methods was studied. As the height of the sample layer increases, the rate of dissociation decreases. The emissions of NOx and CO for the composite hydrate are higher than for methane hydrate at the same temperature in a muffle furnace. A comparison of harmful emissions during the combustion of gas hydrates with various types of coal fuels is presented. NOx concentration as a result of the combustion of gas hydrates is tens of times lower than when burning coal fuels. Increasing the temperature in the muffle furnace reduces the concentration of combustion products of gas hydrates.

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