نتایج جستجو برای: gas hydrates
تعداد نتایج: 246537 فیلتر نتایج به سال:
The hydrate/methane gas interface is studied by molecular dynamics simulations. Below the hydrate melting temperature a thin liquid film forms with an associated surface charge density and electrostatic potential. The thickness of the thin liquid film, the charge density, and electrostatic potential at the hydrate/gas interface are established at different subcooling temperatures for the first ...
A joint community effort to critically evaluate quantum chemical approaches the prediction of vibrational shifts hydrates in gas phase.
The effect of methane seepage from sediments harbouring shallow gas hydrates on standing stocks and the distribution pattern of meiobenthic organisms, in particular Nematoda and Rotifera, was studied at about 800 m water depth at Hydrate Ridge, Cascadia subduction zone, off Oregon. The presence of shallow gas hydrates, buried only a few 10s of centimetres below the sediment surface, was indicat...
Methane hydrate is an icelike substance that is stable at high pressure and low temperature in continental margin sediments. Since the discovery of a large number of gas flares at the landward termination of the gas hydrate stability zone off Svalbard, there has been concern that warming bottom waters have started to dissociate large amounts of gas hydrate and that the resulting methane release...
Gas hydrates (GHs) are known to pose serious flow assurance challenges for the oil and gas industry. Neverthless, over last few decades, hydrates-based technology has been explored various energy- environmentally related applications. For both applications, a controlled formation of GHs is desired. Management hydrate by allowing them form within pipelines in their complete mitigation preferred....
A brief observation of the developments in mining systems and technology in the past 2 to 4 years is presented. Discussions on the development of other deep-ocean resources that are somewhat similar to nodule production also include gas hydrates, Cobalt-rich manganese crusts, hydrothermal vents and deep-ocean water upwelling (DOW). Previous reviews of deep-ocean mining can be found in Chung (19...
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