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NFT: Scientists Discover Process to Turn CO2 Into Ethanol

steve in ky : 10/19/2016 2:21 pm
I wonder if this may end up being a game changer?
Link - ( New Window )
And possibly  
Pete in MD : 10/19/2016 2:29 pm : link
create a new generation of moonshiners :-)
That would be terrific.  
yatqb : 10/19/2016 2:47 pm : link
As noted, a game changer.
I'm going to wager that  
phil in arizona : 10/19/2016 3:49 pm : link
this group of scientists mysteriously vanish within a year.
If it's scalable it'd be great...  
Dunedin81 : 10/19/2016 3:50 pm : link
the article seems to think so, but of course a lot of articles had hyped particular developments with a lot of promise and they fizzled or went nowhere. Hopefully this will be different.
When you burn ethanol  
RobCarpenter : 10/19/2016 3:51 pm : link
don't you get CO2?
Link - ( New Window )
RE: When you burn ethanol  
Jim in Fairfax : 10/19/2016 4:01 pm : link
In comment 13181798 RobCarpenter said:
Quote:
don't you get CO2? Link - ( New Window )

Yes, you do. But If the using CO2 to make the fuel, it's a neutral from a CO2 standpoint.
RE: When you burn ethanol  
giants#1 : 10/19/2016 4:02 pm : link
In comment 13181798 RobCarpenter said:
Quote:
don't you get CO2? Link - ( New Window )


Yes, but it would be a net zero assuming the process of converting the CO2 to ethanol doesn't require any additional energy input. Whereas burning fossil fuels releases 'new' CO2 into the atmosphere.
Well the headline promises a lot  
Deej : 10/19/2016 4:12 pm : link
Quote:
Scientists Accidentally Discover Efficient Process to Turn CO2 Into Ethanol
The process is cheap, efficient, and scalable, meaning it could soon be used to remove large amounts of CO2 from the atmosphere.


What, it doesnt make me thinner and more attractive?
So...  
Dave in PA : 10/19/2016 4:14 pm : link
Could you hypothetically have an engine that burns ethanol, captures the CO2 and converts it back to ethanol in an endless cycle?
RE: So...  
Deej : 10/19/2016 4:16 pm : link
In comment 13181825 Dave in PA said:
Quote:
Could you hypothetically have an engine that burns ethanol, captures the CO2 and converts it back to ethanol in an endless cycle?


Dont think so. They said it was in the 60s percent range for efficiency. You're talking about a 100% efficient closed loop.
I so look forward  
Brown Recluse : 10/19/2016 4:24 pm : link
to the return of giant insects, lizards and flowers.
RE: RE: When you burn ethanol  
RobCarpenter : 10/19/2016 4:40 pm : link
In comment 13181811 giants#1 said:
Quote:
In comment 13181798 RobCarpenter said:


Quote:


don't you get CO2? Link - ( New Window )



Yes, but it would be a net zero assuming the process of converting the CO2 to ethanol doesn't require any additional energy input. Whereas burning fossil fuels releases 'new' CO2 into the atmosphere.


But if you haven't reduced the amount of CO2 in the atmosphere you haven't done anything to affect global warming. Not to be a total jerk here but if you don't remove the carbon you haven't really accomplished anything useful.
Read the articles conclusion....  
WideRight : 10/19/2016 4:41 pm : link
"...probably precludes economic viability for this catalyst...."

The press was wrong to imply scalabiltiy
RE: RE: RE: When you burn ethanol  
giants#1 : 10/19/2016 4:43 pm : link
In comment 13181853 RobCarpenter said:
Quote:



But if you haven't reduced the amount of CO2 in the atmosphere you haven't done anything to affect global warming. Not to be a total jerk here but if you don't remove the carbon you haven't really accomplished anything useful.


If the ethanol created from this cycle is replacing gasoline from fossil fuels, then while you're not reducing CO2, you're not increasing it either. So you are helping to achieve the larger goals.
RE: RE: RE: RE: When you burn ethanol  
RobCarpenter : 10/19/2016 4:54 pm : link
In comment 13181859 giants#1 said:
Quote:
In comment 13181853 RobCarpenter said:


Quote:





But if you haven't reduced the amount of CO2 in the atmosphere you haven't done anything to affect global warming. Not to be a total jerk here but if you don't remove the carbon you haven't really accomplished anything useful.



If the ethanol created from this cycle is replacing gasoline from fossil fuels, then while you're not reducing CO2, you're not increasing it either. So you are helping to achieve the larger goals.


That's a fair point.
RE: When you burn ethanol  
montanagiant : 10/19/2016 4:58 pm : link
In comment 13181798 RobCarpenter said:
Quote:
don't you get CO2? Link - ( New Window )

Yes, so it is about as close to a self propulsion machine as one could get.
Interesting discussion  
Randy in CT : 10/19/2016 5:26 pm : link
.
Fantsastic  
Mike in Marin : 10/19/2016 7:57 pm : link
Going out to celebrate by buying a 12 cylinder dump truck for commuting, so I can carry the leaves I'm going to burn in the back !
It is true...  
Dan in the Springs : 10/19/2016 8:25 pm : link
in the research paper it says the following:

Quote:
The overpotential (which might be lowered with the proper electrolyte, and by separating the hydrogen production to another catalyst) probably precludes economic viability for this catalyst...


but it's clear the researchers see a path forward with more research.

Also, while on this thread most have speculated that the ethanol could be used for traditional combustion, the articles don't necessarily go that route. It would seem that this could be useful in converting excess energy into a fuel for storage (as opposed to say, a TESLA wall battery?). The idea suggested is that renewable energy sources might be more efficient if they could store the excess energy as ethanol, so the impact would be less on whether the ethanol is burned in order to "smooth out" the energy supply from renewable sources.

In other words, it might be more efficient to use than a battery (and cheaper too) but might produce more greenhouse gasses (who knows?).

Anyway, that's my take after a careful read of the literature. Thanks for the link, I found it very interesting.
This is a huge game changer.  
shelovesnycsports : 10/19/2016 8:41 pm : link
Imagine not having to rely on third world countries for their oil.
CO2 + a lot of razzamatazz = C2H5OH (ethanol)  
Marty in Albany : 10/20/2016 12:13 am : link
For instance, if you add CO2 to H2O you get club soda.
Maybe I'm missing something - but I thought the main benefit  
jcn56 : 10/20/2016 12:29 am : link
here is the reduction of CO2, not so much the generation of ethanol.

Finding a way to reduce CO2 emissions and get some energy back is a big plus, helping to offset the cost of reducing greenhouse gases. I don't think the intent was to build ethanol generation plans to scale, but I could be wrong.
Very cool  
widmerseyebrow : 10/20/2016 1:07 am : link
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