scholarly journals Gas Hydrate Equilibrium Measurement of Methane + Carbon Dioxide + Tetrahydrofuran+ Water System at High CO2 Concentrations

2016 ◽  
Vol 148 ◽  
pp. 1220-1224 ◽  
Author(s):  
Behzad Partoon ◽  
Omar Nashed ◽  
Zamzila Kassim ◽  
Khalik M. Sabil ◽  
Jitendra Sangwai ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Gas Hydrate ◽  
Water System ◽  
High Co2 ◽  
Co2 Concentrations ◽  
Methane Carbon

scholarly journals Bulk and Interfacial Properties of the Decane + Water System in the Presence of Methane, Carbon Dioxide, and Their Mixture

2020 ◽  
Vol 124 (43) ◽  
pp. 9556-9569
Author(s):  
Yafan Yang ◽  
Arun Kumar Narayanan Nair ◽  
Mohd Fuad Anwari Che Ruslan ◽  
Shuyu Sun
Keyword(s):  
Carbon Dioxide ◽  
Water System ◽  
Interfacial Properties ◽  
Methane Carbon

Gas hydrate phase equilibrium in the system methane–carbon dioxide–neohexane and water

1999 ◽  
Vol 158-160 ◽  
pp. 795-800 ◽  
Author(s):  
Phillip Servio ◽  
Fritz Lagers ◽  
Cor Peters ◽  
Peter Englezos
Keyword(s):  
Carbon Dioxide ◽  
Phase Equilibrium ◽  
Gas Hydrate ◽  
Hydrate Phase ◽  
Methane Carbon

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.

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