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From: usenet on 4 Jul 2010 20:40
'Petrol made from CO2' soon

PTI
The Pioneer
Monday, July 5, 2010

London - Scientists are inching closer to produce a new fuel from
carbon dioxide and sunlight which they claim will help meet world's
energy needs and minimise carbon emissions.

A team at Sandia National Laboratories in Albuquerque, New Mexico, is
developing the technique which will produce "synthetic liquid fuels"
in solar-powered reactors.

Experiments have also shown that the reactors can absorb carbon
dioxide (CO2) and turn it into carbon monoxide. The same reactors can
also be used to turn water into hydrogen and oxygen.

The two can then be reacted together with a catalyst to form
hydrocarbon fuels, in a technique known as the "Fischer-Tropsch"
process.

According to the researchers, fuels made in this way are sufficiently
similar to those currently used in cars, and major redesigns of
engines and refuelling stations is not necessary, New Scientist
reported.

This innovative fuel production techniques could inch motor vehicles
towards carbon neutrality, it said.Ken

Caldeira of the Carnegie Institution of Washington at Stanford
University, California, said that creating usable fuel from solar
energy is a promising way of keeping the world's energy demands
satisfied while minimising carbon emissions.

"This area holds out the promise for technologies that can produce
large amounts of carbon-neutral power at affordable prices, which can
be used where and when that power is needed," he said.

"It is one of the few technology areas that could truly revolutionise
our energy future." The Sandia team has created a machine called the
"Counter Rotating Ring Receiver Reactor Recuperator (CR5)", which
captures carbon dioxide from power plant exhaust fumes.

In future, however, they hope to use CO2 extracted directly from the
air, although they are not developing their own carbon-capture
technique to do so.

"That is a huge challenge in itself, and we opted to focus on one
hard problem at a time," says James Miller, a combustion chemist at
Sandia.

The system uses a giant parabolic mirror, which concentrates sunlight
on to two chambers separated by spinning rings of cerium oxide.

As the rings turn, the cerium oxide is heated to 1500C and releases
oxygen into one of the chambers. The oxygen is then pumped away.

As the ring spins, the now de-oxidised cerium moves into the other
chamber. Carbon dioxide is pumped in, and the deoxidised cerium
steals one of the oxygen molecules, creating carbon monoxide and
cerium oxide.

The team is now working to improve reliability while building a
bigger reactor with 28 rotating rings. "That will enable it to
process more CO2 and water," says Miller.

http://dailypioneer.com/267043/%E2%80%98Petrol-made-from-CO2%E2%80%99-soon.html

More at:
http://www.dailypioneer.com

Jai Maharaj, Jyotishi
Om Shanti

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From: hari.kumar on 4 Jul 2010 21:20

To make it work, we will need a good supply of hot air. Now where can
we get some, hmmm ...
From: jimp on 4 Jul 2010 21:51
In sci.physics usenet(a)mantra.com wrote:
> 'Petrol made from CO2' soon

Sounds great if you want $50/gal gasoline.

--
Jim Pennino

Remove .spam.sux to reply.
From: usenet on 4 Jul 2010 22:21
In article <mdq7g7-ou8.ln1(a)mail.specsol.com>,
jimp(a)specsol.spam.sux.com posted:

> > 'Petrol made from CO2' soon

> Sounds great if you want $50/gal gasoline.

Sooner than later, one way or another, gasoline will cost that much and more.

Jai Maharaj, Jyotishi
Om Shanti

From: jimp on 4 Jul 2010 22:39
In sci.physics usenet(a)mantra.com wrote:
> In article <mdq7g7-ou8.ln1(a)mail.specsol.com>,
> jimp(a)specsol.spam.sux.com posted:
>
>> > 'Petrol made from CO2' soon
>
>> Sounds great if you want $50/gal gasoline.
>
> Sooner than later, one way or another, gasoline will cost that much and more.
>
> Jai Maharaj, Jyotishi
> Om Shanti

Neglecting inflation, it is never going to happen.

If gasoline cost that much, no one would buy it, which means no one would
make it.


--
Jim Pennino

Remove .spam.sux to reply.
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