Posted on 05/21/2012 3:30:16 AM PDT by LibWhacker
I think this Michigan Technological University professor deserves the Nobel Prize...at the very least.
The publication is called "Phys Org" I presume the "Phys" comes from physics. How can an organization with physics in its name not even know the difference between energy and temperature?
Not so fast! Surely this is only of use if we can get out hands on lots of Li3N? Is there is a cheap easily available natural source?
It turns out, that carbon dioxide is one of the most useful compounds on any habitable planet throughout the Universe.
And this little dollop is just more frosting on the cake.
He gets his money from NSF and NSF gets it from Congress.
If you want to be a True Conservative and Real American then you should oppose this because it is Socialism.
Who ever said CO2 isn't useful? It makes soda and beer tolerable, and plants love it.
When used as a fertilizer, the cyanamide releases .... CO2.
So the fertilizer provides nitrogen for the soil and CO2 for the plants. Sounds like a win/win.
“get our hands on lots of Li3N”
You’re correct. Put another way, how much energy does it take to produce Li3N?
he means increasing energy input forces increased temp.
You’ve put you’re finger on it - Li3N is going to have to be prepared, and that’s going to cost not just money, but also energy.
So while the reaction of CO2 and LiN3 may be exothermic (heat-releasing), the overall reaction of (something) + ammonica (to give Li3N) + CO2 is probably not. And it’s not too tough to calculate what the overall energy balance would be - it all depends on what they react to get LiN3.
Kind of neat, but I wouldn’t start investing in CO2 futures quite yet.
Indeed. However, he said: "how much energy". He then gave the temperature in degrees. Temperature is NOT energy. The relation of energy to temperature is somewhat complex, including mass, specific heat, initial temperture, heat transfer rates due to conduction, convection, and radiation, and more.
Re: post 12 - every “LiN3” should = “Li3N”.
Damned chemical dyslexia!
By the way, Li3N will be very water sensitive, so much so that I expect it will react spontaneously with moisture in the atmosphere, which will further complicate any real use of this system.
Some just don’t have a sense of proportion. The implication is that somehow making computer chips out of CO2 will resolve, to any meaningful degree, the “global warming” problem - when the ratio of such useful use to problematic production is orders of magnitude of orders of magnitude. This isn’t “save the planet” material, it’s “Total Perspective Vortex” material.
Thanks LibWhacker. I didn’t check, this may have been posted before?
I’m not a EE so don’t try to pin me on this. But, from what I’ve read silicon based semiconductor technology is fast approaching it’s outer limit of performance capability. In other words, Moore’s Law my soon no longer be valid without a breakthrough. So, the industry is desperately searching for a new medium to replace silicon and take it to the next level. So far, it seems, no luck.
Lithium reacts with nitrogen to make Li3N. Refining the lithium, through electrolysis, is a VERY energy-intensive process.
The Laws of Thermodynamics:
0) You must play the game
1) You can’t win
2) You can’t break even
3) You can’t quit the game
Your question is the key to this. There is no free ride. If this reaction yields so much energy from highly stable CO2, Li3N is highly reactive and will react with almost anything it encounters. The energy released from the reaction must be first used to create the LiN3.
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