Flammable ice could be mined for fuelApril 24th, 2008 - 5:07 pm ICT by admin
London, April 24 (ANI): Methane hydrate, more popularly known as flammable ice, could turn out to be the worlds last great source of carbon-based fuel, if it is mined properly.
Methane hydrates are crystal lattices of ice that trap methane beneath ocean beds and permafrost.
According to a report in New Scientist, one problem with extracting this methane is that you have to melt the ice to bring the gas to the surface.
In 2002, a team of geologists from Canada and Japan tried injecting hot water into the ice beneath the delta of the McKenzie river in northern Canada. While this released some hydrates, it used a lot of energy.
Now the same group has extracted methane much more efficiently, and without hot water, by pumping air out of drill holes in the frozen structures. This reduced the pressure, and so raised the melting temperature of the ice so the methane could be removed.
The state-owned Japan Oil, Gas and Metals National Corporation, which announced the test results, wants to extract the 7 trillion tonnes of methane thought to be trapped in hydrates in Japanese coastal waters.
It hopes this will be the answer to Japans century-long search for an indigenous source of fuel. (ANI)
- Shrinking ice sheet may free methane reserves - Aug 30, 2012
- Global warming may initiate release of underground methane into atmosphere - Sep 03, 2009
- Ice that burns may provide clean, sustainable energy in future - Mar 24, 2009
- Evidence points towards methane seeping from Arctic sea bed - Aug 19, 2009
- Methane under permafrost could speed up global warming 20-fold - Sep 03, 2009
- Thawing arctic soil may release greenhouse gases - Nov 07, 2011
- Two thirds of permafrost likely to melt by 2200 - Feb 17, 2011
- Climate change strips Arctic of much snow cover - May 05, 2011
- Arctic area, oceans lock up fourth of world's carbon dioxide - Oct 15, 2009
- Gas-rich ice is super source of fuel: Canadian experts - Jul 09, 2008
- New ice provides an eco-friendly way for putting out fires - Apr 27, 2009
- Three more missions to Mars planned - Nov 24, 2011
- Natural gas supplies could be augmented with methane hydrate - Jan 30, 2010
- 'Dry water' could offer new way to absorb and store CO2, fight global warming - Aug 26, 2010
- Economic impact of Arctic melt could amount to 2.4 trillion dollars by 2050 - Feb 08, 2010
Tags: april 24, coastal waters, crystal lattices, delta, drill holes, geologists, great source, hot water, mckenzie river, melting temperature, metals, methane hydrates, new scientist, northern canada, ocean beds, oil gas, permafrost, test results, tonnes, trillion