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(Science Daily)   Now that cancer is cured, scientists are trying to make fuel out of air   (sciencedaily.com) divider line 22
    More: Unlikely, carbon dioxide, fossil fuels, Chemical Society, methanol, effective methods, print share, substrates, EurekAlert  
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1763 clicks; posted to Geek » on 21 Jun 2013 at 1:38 AM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



22 Comments   (+0 »)
   
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2013-06-21 12:05:12 AM  
CO2? Seems like if you can use hydrogen as a fuel that shouldn't be all that much of a stretch.
 
2013-06-21 12:25:07 AM  
Unlikely?  You mean as unlikely as taking CO2 from the air and converting it to glucose?
 
2013-06-21 01:44:24 AM  
That's crazy talk.

Only enviro-hippies like the US Navy would think they could make their own fuel without drilling it out of the ground as God intended.
 
2013-06-21 01:51:16 AM  
img.fark.net  Probably set the atmosphere on fire, but don't mind me
 
2013-06-21 01:51:42 AM  
If you already have a source of pure hydrogen, you have fuel. This sounds like using a gas generator to run a windmill.
 
2013-06-21 02:02:23 AM  
You can create a fuel out of CO2 , but you're putting more energy into it than you're getting out of it.

2 CO2 + 4 H2O  + energy →   2 CH3OH + 3 O2
 
2013-06-21 02:04:56 AM  

StopLurkListen: You can create a fuel out of CO2 , but you're putting more energy into it than you're getting out of it.

2 CO2 + 4 H2O  + energy →   2 CH3OH + 3 O2


P.S. Which is fine in situations you want to store power. For example, batteries. You could think of this as a battery of sorts. It's just not a source of energy itself.
 
2013-06-21 02:17:27 AM  

StopLurkListen: StopLurkListen: You can create a fuel out of CO2 , but you're putting more energy into it than you're getting out of it.

2 CO2 + 4 H2O  + energy →   2 CH3OH + 3 O2

P.S. Which is fine in situations you want to store power. For example, batteries. You could think of this as a battery of sorts. It's just not a source of energy itself.


Saudi Arabia would plate the desert in solar power.  Actually, there many areas with high sun levels but less grit.
 
2013-06-21 02:20:17 AM  

wildcardjack: Saudi Arabia would plate the desert in solar power.


They're working on it.
 
2013-06-21 02:26:22 AM  

Ivo Shandor: wildcardjack: Saudi Arabia would plate the desert in solar power.

They're working on it.


Ughh, constantly in the past, they're working on polysilicon when the new shiat is cheap ass printed solar. Only silicon is in the glass, which isn't finicky crystalline.

Look at Nanosolar. We're talking "wrap the world" in scale.
 
2013-06-21 03:40:40 AM  
would any of you believe I had a 1x10^6 moment and was thinking of this drunk after the Heat game tonight?   now after I get the rush from the alcohol I wake up to read this.

So naturally I think it's a good idea.
 
2013-06-21 03:50:01 AM  
 Professor Fontaine. "It takes a lot of energy to synthesize hydroborane, which makes it more expensive than methanol. We are working on ways to make the process more profitable by optimizing the reaction and exploring other hydrogen sources."

In other words, yeah this shiat is pretty farking pointless.
 
2013-06-21 04:47:50 AM  

HotWingAgenda: If you already have a source of pure hydrogen, you have fuel. This sounds like using a gas generator to run a windmill.


If you have hydrogen you have a fuel with very low energy density and which does not work with the current transportation infrastructure.  Converting it into methanol solves a couple problems if you can do it in a cost effective way.
 
2013-06-21 04:48:13 AM  
I know we all hate cancer, but really, free energy is much more important than curing cancer.

Not that this is free energy or anything.
 
2013-06-21 05:04:41 AM  

Mentat: Unlikely?  You mean as unlikely as taking CO2 from the air and converting it to glucose?


Because many cars come equipped with photosystem II.
 
2013-06-21 07:01:29 AM  
It's not like there's a global energy crisis or anything
 
2013-06-21 08:41:05 AM  

HotWingAgenda: If you already have a source of pure hydrogen, you have fuel. This sounds like using a gas generator to run a windmill.


At the moment, you can't put hydrogen in a jet engine.  The idea is to use hydrogen as an electron donor for synthesis of long-chain hydrocarbons which can be dropped into existing engines.
 
2013-06-21 09:19:46 AM  

fusillade762: CO2? Seems like if you can use hydrogen as a fuel that shouldn't be all that much of a stretch.


Wow.
 
2013-06-21 09:49:04 AM  

Cucullen: Professor Fontaine. "It takes a lot of energy to synthesize hydroborane, which makes it more expensive than methanol. We are working on ways to make the process more profitable by optimizing the reaction and exploring other hydrogen sources."

In other words, yeah this shiat is pretty farking pointless.


You're not looking at it from the correct perspective. Think like Al Gore...this is a technology that can be monetized by selling it to large CO2 producers, who then gather excessive tax credits by converting their CO2 emissions to industrially useful methanol instead of dumping it into the atmosphere. Ta da!
 
2013-06-21 10:11:52 AM  
img.fark.net

do it!
 
2013-06-21 10:21:00 AM  

Mentat: HotWingAgenda: If you already have a source of pure hydrogen, you have fuel. This sounds like using a gas generator to run a windmill.

At the moment, you can't put hydrogen in a jet engine.  The idea is to use hydrogen as an electron donor for synthesis of long-chain hydrocarbons which can be dropped into existing engines.


Not only that, hydrocarbons are very energy dense. Availing ourselves of Mother Nature's best energy storage system sounds smart.
 
2013-06-21 10:59:27 PM  
When you get right down to it, the borane is just an attic to stash electrons in so you can let the energy trickle down to the methanol level. The real trick will be cheap and easy reduction of CO2 directly to fuels without the coreductant intermediate(s).

/Yeah yeah plants. If you think that's cheap or easy, try being a farmer.
 
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