Kinetic Evaluation of Methane−Carbon Dioxide Reforming Process Based on the Reaction Steps

2008 ◽  
Vol 47 (14) ◽  
pp. 4617-4622 ◽  
Author(s):  
Cesar A. M. Abreu ◽  
Douglas A. Santos ◽  
José A. Pacífico ◽  
Nelson M. Lima Filho
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Reforming ◽  
Kinetic Evaluation ◽  
Methane Carbon

Tailoring the stability of Ni-Fe/mayenite in methane – Carbon dioxide reforming

Fuel ◽  
2021 ◽  
Vol 284 ◽  
pp. 118909 ◽  
Author(s):  
Ruifeng Peng ◽  
Yumin Chen ◽  
Baoxu Zhang ◽  
Zhipeng Li ◽  
Xin Cui ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Reforming ◽  
The Stability ◽  
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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