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Producing hydrogen from sea water
Chemistry World ^
| 28 April 2010
| Mike Brown
Posted on 05/03/2010 10:50:42 PM PDT by neverdem
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To: neverdem
Seawater is 1 ppm uranium...they’d be better off extracting uranium from seawater.
To: neverdem
22
posted on
05/04/2010 3:19:04 AM PDT
by
babygene
(Figures don't lie, but liars can figure...)
To: Defiant
Just think how much more energy can be gained it they use the waters of the Gulf of Mexico!
23
posted on
05/04/2010 3:45:50 AM PDT
by
Recon Dad
( USMC SSgt Patrick O - 3rd Afghanistan Deployment - Day 196)
To: neverdem
And whence comes the energy to conduct this catalytic reaction? What becomes of the expended catalyst and is it toxic. Molydenum, what is the energy cost to produce that and is it not toxic to a degree????? Nothing without a price.
To: neverdem
Another claiming to have circumvented the laws of thermodynamics?
25
posted on
05/04/2010 4:05:21 AM PDT
by
IamConservative
(Liberty is all a good man needs to succeed.)
To: Defiant
If we use sea water to create hydrogen, and make the oceans lower, that should help counteract the melting ice caps from global warming. We will live!Oops! You missed a step. When the hydrogen is consumed as fuel - a very good thing - water is formed in the atmosphere which precipitates as rain. This rain will eventually wind up in the oceans - they get refilled. We therefore have a virtually perpetual fuel source.
26
posted on
05/04/2010 4:19:41 AM PDT
by
reg45
To: Lion Den Dan
The nature of a catalytic agent is that it is not consumed in the reaction. BTW, I have been an advocate of hydrogen as a fuel for forty years.
27
posted on
05/04/2010 4:26:04 AM PDT
by
reg45
To: 4rcane
in a 100 years, i have no doubt in my mind that the future generation of environmentalist will find fault in the technology thats powering society, even if we adopt everything they support now e.g ethanol, solar panel. That's because they are progressives" - and therefore they cannot have an end point. "Change" is their entire philosophy.
To: neverdem
There are many ways to produce hydrogen. Is this cheaper and easier than other methods? Is this cheaper than "fossil" fuels?
As with all hydrogen schemes the question as to distribution methods will rear it's head. Hydrogen is not an easy gas to handle or transport.
29
posted on
05/04/2010 4:42:51 AM PDT
by
FreePaul
To: Lonesome in Massachussets
"The half life of a water molecule in the atmosphere is about a week, a molecule of CO2 about a century" Use of the term "half-life" to describe ingredients in a system that is largely steady-state is very simplistic. Water simply changes state regularly, and there is no chemical alteration of it. CO2 is chemically altered when it is generated by burning fuel and is therefore not in the same class as water for your analogy.
30
posted on
05/04/2010 4:44:50 AM PDT
by
norwaypinesavage
(Galileo: In science, the authority of a thousand is not worth the humble reasoning of one individual)
To: ASOC
.....tin foil....
Aluminum foil?
31
posted on
05/04/2010 4:48:39 AM PDT
by
bert
(K.E. N.P. +12 . Ostracize Democrats. There can be no Democrat friends.)
To: sonofstrangelove
The process is called electrolysis.Finding the right catalyst will determine whether the electrolysis of water for using hydrogen as a fuel is economically viable or not, IMHO.
32
posted on
05/04/2010 4:52:41 AM PDT
by
neverdem
(Xin loi minh oi)
To: Mike Darancette
LOL! They actually said, “whilst?”
33
posted on
05/04/2010 5:10:25 AM PDT
by
dangus
To: F15Eagle
Nope. Producing is fine. H+ is simply a proton. H2 is a molecule. By “Hydrogen,” they mean H2, not protons. Water is not H2. It does not contain H2.
34
posted on
05/04/2010 5:13:14 AM PDT
by
dangus
Comment #35 Removed by Moderator
To: F15Eagle
You don’t extract something unless it exists already in what you extract it from.
36
posted on
05/04/2010 5:27:33 AM PDT
by
dangus
Comment #37 Removed by Moderator
To: bert
sorry,
reynolds wrap?
al
commonly called tin foil in the hinderlans were I grew up
38
posted on
05/04/2010 7:38:48 AM PDT
by
ASOC
(I am available for spill response work, all I ask is $800/day plus expenses.....)
To: DemforBush
ya, that can happen (kof kof) by accident
dry ice does the same thing is much safer
lye (drano) is dangerous if one is not careful 0
39
posted on
05/04/2010 7:40:55 AM PDT
by
ASOC
(I am available for spill response work, all I ask is $800/day plus expenses.....)
To: neverdem; dangus; F15Eagle; norwaypinesavage; FreePaul; reg45; Lion Den Dan; Royal Wulff; ...
I'm no scientist or chemist and I didn't study this stuff much in school and that was long ago. So would someone kindly school me.
My understanding is that the salt NaCl in salt water is in ion form. Something like Na+ and Cl- where the Na+ has an extra electron and the Cl- is lacking an electron.
The salt in ion form is stable in water.
However, the Na sodium ion stripped of its electron--in the presence of water H2O-- is exothermic .... well its explosive. If you do a google search of
sodium water reaction youtube-- You can find all kinds of
kids blowing up trashcans of water with sodium
So couldn't you just get a controlled combustion by stripping the sodium ion Na+ in situ --while its in water --of its extra electron. The only similarity to a gasoline combustion -- is that you'd have to add extra energy for it to work but the resulting explosion would be exothermic--ie you'd get more energy out.
You might do this by bombarding the salt water with radio waves at the resonance for sodium so as to create a synthetic catalyst.
Kanzius bombarded saltwater at 13.56 MHz -- the Nuclear Magnetic Resonance for Oxygen--which released the hydrogen out of H20. (Likely because the radio wave also heated up Na+ in solution--as would a microwave oven heat a metal.) But what would happen if you bombarded saltwater at the NMR for sodium.
Just a thought.
But the gist of the question is this: why can't you make a controlled combustion with salt water by stripping out the extra electron from the Na+ sodium ion.
(There would likely be three problems 1.)stripping the ion. 2.)controlling the combustion 3.) sorting out the waste)
40
posted on
05/04/2010 7:41:36 AM PDT
by
ckilmer
(Phi)
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