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Old 22nd October 2012, 13:29   #1
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Thumbs up Producing petrol from Air? Too good to be true

Apparently, people have found ways to produce petrol

Further details at:

http://www.rediff.com/business/slide...r/20121022.htm
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Old 22nd October 2012, 13:46   #2
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Post Re: Producing petrol from Air? Too good to be true

Will reserve my judgment until the viability and scalability of using this technology for commercial use is assessed completely - assuming the technology itself is proven in the first place. Hoax might be a strong insinuation, but my first instinct is to hinge toward "too good to be true".

The article states that 5 liters of petrol was produced in about 3 months and a refinery-size operation could take 15 years! Enough room for doubt huh.
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Old 22nd October 2012, 13:51   #3
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Default Re: Producing petrol from Air? Too good to be true

Even if this is true, it would not be useful since it requires electricity and is just converting one form of expensive energy to other.
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Old 22nd October 2012, 22:37   #4
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Default Re: Producing petrol from Air? Too good to be true

Nonsense.

Anyone with a basic knowledge of physics will know that such a process will need more energy to create the fuel than what will be obtained by burning the fuel.
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Old 22nd October 2012, 23:11   #5
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Default Re: Producing petrol from Air? Too good to be true

Quote:
if renewable energy is used to provide the electricity it could become "completely carbon neutral".
too good to be true, but we know that there are many instances when we let go of the energy because we can't effectively use it. e.g. surge in dam capacity in monsoon, sudden bursts of energy in windmills, excess gas from offshore drilling etc. Who knows this technology may allow us to buffer the energy demand.
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Old 23rd October 2012, 18:47   #6
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Default Re: Producing petrol from Air? Too good to be true

Taking sodium hydroxide and mixing it with carbon dioxide before 'electrolysing' the sodium carbonate that it produces to form pure carbon dioxide.

So where would Sodium Hydroxide come from? Its not freely available like water or limestone (calcium carbonate)


Hydrogen is then produced by electrolysing water vapour captured with a dehumidifier.

Uh Oh!. Doing Electrolysis means consumption of huge amount of electricity.


The company, Air Fuel Syndication, uses the carbon dioxide and hydrogen to produce methanol which in turn is passed through a gasoline fuel reactor, creating petrol.

So now you have a huge initial capital cost of Gasoline Fuel reactor too!
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Old 24th October 2012, 04:38   #7
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Thumbs up Re: Producing petrol from Air? Too good to be true

Some more information from BBC.

http://www.bbc.co.uk/news/science-environment-20003650

This looks to be too good to be true, if it works out in the end.
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Old 27th October 2012, 22:36   #8
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Default Re: Producing petrol from Air? Too good to be true

Indeed sceptical about this. We have no known way of preventing energy loss during conversion between forms, and changing matter from naturally occurring states to another state implies supplying significant energy to make that change.

Even solar energy is not infinite, though articles make it look like it , though it's not an issue we will face anytime soon - the sun's hydrogen is transformed to helium and the sun's mass isn't growing, so someday the hyrdogen will end , all the mass of the sun will be helium, and the fusion will end , probably 50 million years from now.

Until we find a way to create energy (so far impossible within our understanding of physics), we will always have an energy limitation.
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