Journal ArticleDOI
Fundamental principles and applications of natural gas hydrates
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TLDR
Natural gas hydrates have an important bearing on flow assurance and safety issues in oil and gas pipelines, they offer a largely unexploited means of energy recovery and transportation, and could play a significant role in past and future climate change.Abstract:
Natural gas hydrates are solid, non-stoichiometric compounds of small gas molecules and water. They form when the constituents come into contact at low temperature and high pressure. The physical properties of these compounds, most notably that they are non-flowing crystalline solids that are denser than typical fluid hydrocarbons and that the gas molecules they contain are effectively compressed, give rise to numerous applications in the broad areas of energy and climate effects. In particular, they have an important bearing on flow assurance and safety issues in oil and gas pipelines, they offer a largely unexploited means of energy recovery and transportation, and they could play a significant role in past and future climate change.read more
Citations
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Journal ArticleDOI
Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks for Clean Energy Applications
Hiroyasu Furukawa,Omar M. Yaghi +1 more
TL;DR: Findings place COFs among the most porous and the best adsorbents for hydrogen, methane, and carbon dioxide.
Journal ArticleDOI
Chemical and Physical Solutions for Hydrogen Storage
TL;DR: Different methods for hydrogen storage are discussed, including high-pressure and cryogenic-liquid storage, adsorptive storage on high-surface-area adsorbents, chemical storage in metal hydride and complex hydrides, and storage in boranes.
Journal ArticleDOI
Oceanic methane biogeochemistry.
TL;DR: It is shown that thermodynamic and kinetic constraints largely prevent large-scale methanogenesis in the open ocean water column, and the role of anaerobic oxidation of methane has changed from a controversial curiosity to a major sink in anoxic basins and sediments.
Journal ArticleDOI
Microsecond simulations of spontaneous methane hydrate nucleation and growth.
TL;DR: Direct molecular dynamics simulations of the spontaneous nucleation and growth of methane hydrate offer detailed insight into the process of hydrate nucleation, and Cooperative organization is observed to lead to methane adsorption onto planar faces of water and the fluctuating formation and dissociation of early hydrate cages.
Journal ArticleDOI
A review of the hydrate based gas separation (HBGS) process for carbon dioxide pre-combustion capture
TL;DR: In this paper, a systematic review of the literature work done so far on the use of hydrate crystallization as a basis to develop data for the hydrate based gas separation (HBGS) process for the capture of CO2 from fuel gas mixtures is presented.
References
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Book
Clathrate hydrates of natural gases
E. Dendy Sloan,Carolyn A. Koh +1 more
TL;DR: In this paper, the authors compared the properties of hydrates and ice with those of natural gas and showed the effect of thermodynamic inhibitors on the formation of hydrate formation and dissolution process.
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Dissociation of oceanic methane hydrate as a cause of the carbon isotope excursion at the end of the Paleocene
TL;DR: In this paper, the authors show that bottom water temperature increased by more than 4°C during a brief time interval (<104 years) of the latest Paleocene (∼55.6 Ma) and there also was a coeval −2 to −3‰ excursion in the δ13C of the ocean/atmosphere inorganic carbon reservoir.
Journal ArticleDOI
Hydrogen clusters in clathrate hydrate.
Wendy L. Mao,Wendy L. Mao,Ho-kwang Mao,Alexander F. Goncharov,Viktor V. Struzhkin,Quanzhong Guo,J. Z. Hu,Jinfu Shu,Russell J. Hemley,Maddury Somayazulu,Yusheng Zhao +10 more
TL;DR: High-pressure Raman, infrared, x-ray, and neutron studies show that H2 and H2O mixtures crystallize into the sII clathrate structure with an approximate H2/H2Omolar ratio of 1:2.