Results 91 to 100 of about 18,698 (267)
Data-driven discovery of methane hydrate promoters
npj Computational MaterialsMethane hydrates require extreme conditions, and promoter discovery remains largely empirical. We develop a multimodal deep-learning framework that predicts methane-hydrate equilibrium pressures from molecular structure. Trained on over eighty promoters,
Yusung Ok, Youngjune Park
doaj +1 more source
Transport- reaction modeling of marine gas hydrate deposits- global results [PDF]
, 2011 We have developed a multi-1D numerical model of gas hydrate formation and dissolution processes in anoxic marine sediments and, by this model, we have estimated the new global gas hydrate inventory (BURWICZ E. B. et al., 2011).
Burwicz, Ewa B. +2 more
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EcoEnergy, EarlyView.Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng +5 more
wiley +1 more source
Distinct creep regimes of methane hydrates predicted by a monatomic water model
Physical Review ResearchThe power-law creep properties of methane hydrates were measured experimentally two decades ago, but their microscopic explanation is still missing. Here we show, using molecular dynamics simulations spanning almost 2 orders of magnitude of stresses and ...
Henrik Andersen Sveinsson, Pinqiang Cao
doaj +1 more source
KINETIC FEATURES OF THE DISSOCIATION PROCESS OF GAS HYDRATE DEPOSITS [PDF]
, 2019 The research is aimed at revealing the theoretical features of the kinetics of the process of dissociation of natural gas hydrates, the accounting of which is useful in designing technologies for their development.
Petlovanyi, M, Prokopenko, K, Sai, K
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The tandem process involves CO2 methanation and CH4 pyrolysis for CNT synthesis. Unreacted CO2 and H2 from methanation oxidize Fe, suppressing CNT growth on Fe‐only catalysts. Incorporation of Mo into Fe/MgO forms Mo2C, which prevents Fe oxidation under CO2/H2 conditions and thereby enables CNT formation.
Eunchae Oh +5 more
wiley +1 more source
Frontiers in Earth ScienceThe low permeability of the methane hydrate-bearing sediment limits the methane gas extraction. To enhance methane hydrate extraction, hydraulic fracturing can be a promising approach to improve the hydrate reservoir permeability by creating a fracture ...
Hao Sun, Xiangyu Xu, Chao Jia
doaj +1 more source
Dissociation and Self-Preservation of Gas Hydrates in Permafrost
Geosciences, 2018 Gases releasing from shallow permafrost above 150 m may contain methane produced by the dissociation of pore metastable gas hydrates, which can exist in permafrost due to self-preservation.
Evgeny Chuvilin +4 more
doaj +1 more source
5. Wochenbericht MSM01/3 [PDF]
, 2006 Maria S. Merian Cruise 1 leg 3 Last report: 10. 05. - 18. 05. 2006 Der 3. Fahrtabschnitt der 1. Reise des neuesten deutschen Forschungsschiffes Maria S. Merian führt in die Schlammvulkanprovinz des Golf von Cadiz.
Pfannkuche, Olaf
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez +3 more
wiley +1 more source