24 Aug '11, 12am

The Remarkable Energy Potential of Methane Hydrate

One potential alternative fuel that produces greenhouse gas but may be an oil alternative is methane hydrate. This substance is located in vast supplies deep in the ocean in a frozen state Two main extraction methods have been successfully tested at an experimental site on Canada’s Mackenzie Delta. The first, called depressurization, involves drilling a hole into the hydrate layer to draw down the pressure, causing hydrates to dissociate and gas to flow up the pipe. Thermal injection, the second technique, destabilizes hydrates by pumping hot water into the deposit. Because depressurization requires less energy, Wilson calls it the “lowest-hanging fruit.” A third method appears promising, too, but has so far only been tested in a lab. Injecting carbon dioxide into a hydrate formation displaces methane, and has the added benefit of locking away an abundant greenhouse gas. A...

Full article: http://cleantechnica.com/2011/08/23/the-remarkable-energy...

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