Electrolysis of CO2

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Gavilan Guru Join Date: Sep 2007 Location: East Texas Posts: 1439 Good Answers: 31	Electrolysis of CO2 03/14/2010 11:46 PM
	Is it possible to Electrolyze CO2 and break it into the constituent elements? Could it then be recombined to produce combustion fuel? What is the combusiton energy of such a reaction? Would there be a commercial market for the pure carbon and O2? Would it be possible to store energy using this method? Gavilan __________________ "The greater danger for most of us lies not in setting our aim too high and falling short; but in setting our aim too low, and achieving our mark." -- Michelangelo
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#1 Re: Electrolysis of CO2 03/15/2010 12:17 AM
	Where do you get the energy to electrolize the CO₂? Then, when you recombine (burn) it, do you get as much energy back? How well does CO₂ conduct electricity in the first place, so that electrolysis can even get started? What sort of stoking system do you have in mind to feed carbon to a combustion process? (Just a few things to consider.) __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#2 Re: Electrolysis of CO2 03/15/2010 5:55 AM
	Why bother with CO₂ when it is much easier to electrolyse H₂O (rhetorical question)? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Anonymous Poster	#3 Re: Electrolysis of CO2 03/15/2010 3:08 PM
	Why unnecessary electrolyze CO2 when there is a better method available to concert it into a fuel? It is done in nature all around us - Photosynthesis. This will be a far better and green method to do it.
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bwire Guru Join Date: Dec 2007 Location: Upper Mid-west USA Posts: 7498 Good Answers: 97	#4 Re: Electrolysis of CO2 03/15/2010 11:48 PM
	Put into this perspective CO2 can be used by fire fighters on electrical fires because it not conductive...that's the best non-answer I can think of. __________________ If death came with a warning there would be a whole lot less of it.
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wpenrose Associate Join Date: Sep 2009 Location: Oro Valley, AZ Posts: 30 Good Answers: 1	#5 Re: Electrolysis of CO2 03/16/2010 12:36 AM
	You may find what you want by searching NASA reports. They spent some effort learning to electrolytically reduce CO2 to methane. It's not a very efficient process, but they were thinking terraforming on other planets, where CO2 and solar energy are the only resources available. Dangerous Bill
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Anonymous Poster (1); bwire (1); PWSlack (1); Tornado (1); wpenrose (1)

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