08 Sep '11, 2pm

Could ammonia be the zero-carbon fuel we’ve been waiting for?

Ammonia would make a pretty handy, potentially carbon-free liquid transportation fuel, say engineers, and it could be produced right at gas stations using electricity from the grid, water, and air. Researchers at Texas Tech University have developed a new ammonia production system, which makes an end-run around the problems of the so-called "hydrogen economy" -- you remember, all those hydrogen-powered "freedom cars" that Bush Jr. said we'd be driving by now . Hydrogen is difficult to store, but this system combines the hydrogen with nitrogen from the atmosphere, turning it into ammonia, which is still a good fuel source but a lot more filling-station-friendly. (For the fossil fuel geeks out there, the process they use is the Haber Bosch process -- the very same one used to produce munitions during WWII and fertilizer today.) Unfortunately, their process doesn't solve the ...

Full article: http://www.grist.org/list/2011-09-08-could-ammonia-be-the...

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greenbiz.com 09 Sep '11, 4pm

Adding a $25 tax to each tonne of shipping fuel is the simplest way to cut emissions in the sector and help developing cou...