scholarly journals Pre-Screening of Ionic Liquids as Gas Hydrate Inhibitor via Application of COSMO-RS for Methane Hydrate

2020 ◽  
Author(s):  
Muhammad Saad Khan ◽  
Bhajan Lal
Keyword(s):  
Ionic Liquids ◽  
Gas Hydrate ◽  
Methane Hydrate

SS - Gas Hydrate: Gas production from methane hydrate sediment layer by thermal stimulation with hot water injection

2010 ◽  
Author(s):  
Kyuro Sasaki ◽  
Shinzi Ono ◽  
Yuichi Sugai ◽  
Norio Tenma ◽  
Takao Ebinuma ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Methane Hydrate ◽  
Water Injection ◽  
Gas Production ◽  
Hot Water ◽  
Thermal Stimulation ◽  
Sediment Layer

Influence of a Combined Low Dosage Gas Hydrate Inhibitor on Methane Hydrate Surface

2014 ◽  
Vol 1008-1009 ◽  
pp. 300-306
Author(s):  
Cui Ping Tang ◽  
Dong Liang Li ◽  
De Qing Liang
Keyword(s):  
Molecular Dynamics ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Md Simulation ◽  
Side Group ◽  
Large Space ◽  
Surface Molecules ◽  
Low Dosage

According to analysis of the gas hydrate cage and structure of the inhibitor and simulation of molecular dynamics, the interaction between GHI1 and hydrates was discussed. The structure analysis indicated the side group of PVP can insert into the open hydrate cage, and force the hydrate growing along the polymer chain, which results in a large space resistance and inhibits gas hydrate agglomerating. The results of MD simulation show GHI1 can damage the surface cage in hydrate lattice; the hydrogen and oxygen in GHI1 can form hydrogen bonds respectively with oxygen and hydrogen in hydrates, which makes the surface molecules of the cages unstable and distorts the cages; Synergist diethylene glycol ether increases strength and range of length of hydrogen bond.

Effect of imidazolium based ionic liquids and ethylene glycol monoethyl ether solutions on the kinetic of methane hydrate formation

2015 ◽  
Vol 204 ◽  
pp. 236-242 ◽  
Author(s):  
Marziyeh Zare ◽  
Ali Haghtalab ◽  
Amir Naser Ahmadi ◽  
Khodadad Nazari ◽  
Ali Mehdizadeh
Keyword(s):  
Ionic Liquids ◽  
Ethylene Glycol ◽  
Methane Hydrate ◽  
Hydrate Formation ◽  
Monoethyl Ether ◽  
Glycol Monoethyl Ether

Ionic Liquids as Gas Hydrate Thermodynamic Inhibitors

2021 ◽  
Author(s):  
Cornelius B. Bavoh ◽  
Omar Nashed ◽  
Amirun Nissa Rehman ◽  
Nurul Akmal Aqidah Binti Othaman ◽  
Bhajan Lal ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Gas Hydrate

scholarly journals Numerical Investigation into the Development Performance of Gas Hydrate by Depressurization Based on Heat Transfer and Entropy Generation Analyses

Entropy ◽  
2020 ◽  
Vol 22 (11) ◽  
pp. 1212 ◽  
Author(s):  
Bo Li ◽  
Wen-Na Wei ◽  
Qing-Cui Wan ◽  
Kang Peng ◽  
Ling-Ling Chen
Keyword(s):  
Heat Transfer ◽  
Energy Loss ◽  
Entropy Production ◽  
Entropy Generation ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Dynamic Properties ◽  
Entropy Production Rate ◽  
Entropy Flow ◽  
Hydrate Reservoir

The purpose of this study is to analyze the dynamic properties of gas hydrate development from a large hydrate simulator through numerical simulation. A mathematical model of heat transfer and entropy production of methane hydrate dissociation by depressurization has been established, and the change behaviors of various heat flows and entropy generations have been evaluated. Simulation results show that most of the heat supplied from outside is assimilated by methane hydrate. The energy loss caused by the fluid production is insignificant in comparison to the heat assimilation of the hydrate reservoir. The entropy generation of gas hydrate can be considered as the entropy flow from the ambient environment to the hydrate particles, and it is favorable from the perspective of efficient hydrate exploitation. On the contrary, the undesirable entropy generations of water, gas and quartz sand are induced by the irreversible heat conduction and thermal convection under notable temperature gradient in the deposit. Although lower production pressure will lead to larger entropy production of the whole system, the irreversible energy loss is always extremely limited when compared with the amount of thermal energy utilized by methane hydrate. The production pressure should be set as low as possible for the purpose of enhancing exploitation efficiency, as the entropy production rate is not sensitive to the energy recovery rate under depressurization.

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