scholarly journals Crystal growth of clathrate hydrates formed with methane + carbon dioxide mixed gas at the gas/liquid interface and in liquid water

2015 ◽  
Vol 39 (11) ◽  
pp. 8254-8262 ◽  
Author(s):  
Hiroki Ueno ◽  
Hotaka Akiba ◽  
Satoru Akatsu ◽  
Ryo Ohmura
Keyword(s):  
Carbon Dioxide ◽  
Crystal Growth ◽  
Liquid Water ◽  
Liquid Interface ◽  
Clathrate Hydrates ◽  
Mixed Gas ◽  
Hydrate Crystal ◽  
Methane Carbon

Observations of CH4 + CO2 hydrate crystal growth formed at the gas/liquid interface and in liquid water were made.

scholarly journals Local structure and distortions of mixed methane-carbon dioxide hydrates

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Bernadette R. Cladek ◽  
S. Michelle Everett ◽  
Marshall T. McDonnell ◽  
Matthew G. Tucker ◽  
David J. Keffer ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Exchange Process ◽  
Carbon Dioxide Sequestration ◽  
Distribution Functions ◽  
Atomic Scale ◽  
Mixed Gas ◽  
Pure Compounds ◽  
Dynamics Simulations ◽  
Pair Distribution Functions ◽  
Methane Carbon

AbstractA vast source of methane is found in gas hydrate deposits, which form naturally dispersed throughout ocean sediments and arctic permafrost. Methane may be obtained from hydrates by exchange with hydrocarbon byproduct carbon dioxide. It is imperative for the development of safe methane extraction and carbon dioxide sequestration to understand how methane and carbon dioxide co-occupy the same hydrate structure. Pair distribution functions (PDFs) provide atomic-scale structural insight into intermolecular interactions in methane and carbon dioxide hydrates. We present experimental neutron PDFs of methane, carbon dioxide and mixed methane-carbon dioxide hydrates at 10 K analyzed with complementing classical molecular dynamics simulations and Reverse Monte Carlo fitting. Mixed hydrate, which forms during the exchange process, is more locally disordered than methane or carbon dioxide hydrates. The behavior of mixed gas species cannot be interpolated from properties of pure compounds, and PDF measurements provide important understanding of how the guest composition impacts overall order in the hydrate structure.

Dynamics of Methane−Propane Clathrate Hydrate Crystal Growth from Liquid Water with or without the Presence ofn-Heptane

2006 ◽  
Vol 6 (6) ◽  
pp. 1428-1439 ◽  
Author(s):  
Ju Dong Lee ◽  
Myungho Song ◽  
Robin Susilo ◽  
Peter Englezos
Keyword(s):  
Crystal Growth ◽  
Liquid Water ◽  
Clathrate Hydrate ◽  
Hydrate Crystal

Clathrate Hydrate Crystal Growth at the Seawater/Hydrophobic−Guest−Liquid Interface

2010 ◽  
Vol 10 (3) ◽  
pp. 1296-1300 ◽  
Author(s):  
Riki Sakemoto ◽  
Hiroki Sakamoto ◽  
Kuniaki Shiraiwa ◽  
Ryo Ohmura ◽  
Tsutomu Uchida
Keyword(s):  
Crystal Growth ◽  
Liquid Interface ◽  
Clathrate Hydrate ◽  
Hydrate Crystal

scholarly journals Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

RSC Advances ◽  
2022 ◽  
Vol 12 (4) ◽  
pp. 2074-2082
Author(s):  
Sai Kiran Burla ◽  
S. R. Prasad Pinnelli
Keyword(s):  
Carbon Dioxide ◽  
Liquid Water ◽  
Gas Storage ◽  
Clathrate Hydrates ◽  
Carbon Dioxide Storage ◽  
Hydrate Form ◽  
Water Gas ◽  
Gas Ratio

Methane and carbon dioxide storage in hydrate form.

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