Pair claim they can make ammonia to fuel cars for just 20 cents per liter
September 5, 2011 by Bob Yirka
Production of ammonia 1946-2007. Image: Wikipedia.
(PhysOrg.com) -- John Fleming of SilverEagles Energy and Tim Maxwell from Texas Tech University, say they have developed a way to make ammonia that is cheap enough so that it could be used as fuel for cars. If their claims turn out to be true, many consumers might consider switching over because ammonia, when burned in an engine, emits nothing but nitrogen and water vapor out the tailpipe. And if thats not enough incentive, they claim they can make the ammonia for just 20 cents a liter (approximately 75 cents a gallon).
The secret to their low cost estimates actually lie in their newly developed method for making hydrogen, which they use to make their ammonia. They say that by using a new kind of transformer that Fleming built, they can reduce the number of cells necessary for electrolysis to such a degree that they can produce hydrogen at almost half the cost of traditional electrolysis methods.
To make the ammonia, the hydrogen produced is pumped into a compression chamber where a piston squeezes it, causing it to heat up; in this case to 400C°. The result is then allowed to escape into another compartment where a reaction is set off by an iron oxide catalyst. This makes the hydrogen grow even hotter to the point where it begins creating ammonia. The ammonia and leftover hydrogen is then allowed to cool down and decompress in yet a third compartment, and in so doing causes another piston to move back and forth creating energy that is fed back into the system to help lower electric consumption. Then, the ammonia is chilled to -75C° and pumped into a tank for use.
Cars already on the road can use ammonia as an additive without modification (up to 10%) and flex cars could be, according to Fleming, easily modified to use ammonia in conjunction with ethanol, allowing for a mixture of 85% ammonia.
This is all still new technology of course, and apparently no one else has yet verified the claims of the duo, so until that happens, everyone will just have to wait and see if everything they say pans out. One thing not mentioned is the smell; the strong odor of gasoline at service stations is bad enough, its difficult to imagine the exceedingly noxious odor of ammonia permeating the air of such places instead.
More information: via Newscientist
© 2011 PhysOrg.com
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Sep 05, 2011
Rank: 4.4 / 5 (7)
Sep 05, 2011
Rank: 3.7 / 5 (6)
Sep 05, 2011
Rank: 4.4 / 5 (7)
the pumps and receivers should be upgraded to a sealed coupler.
Sep 05, 2011
Rank: 3.9 / 5 (10)
Moral of the story? A cheaper way to produce hydrogen is where the focus may bring greater benefit.
Sep 05, 2011
Rank: 3.8 / 5 (14)
Sep 05, 2011
Rank: 3.1 / 5 (11)
Sep 05, 2011
Rank: 4.5 / 5 (8)
As for a transportation fuel, I don't know. Might just be more of a marketing/advertising gimmick to propose it. Though, it certainly would "motivate" proper maintenance of vehicles and stations to fix leaks into the environment quickly.
Perhaps some additional research to develop an efficient production of methane, or better yet, isobutanol.
http://www.physor...ose.html
Sep 05, 2011
Rank: 4.9 / 5 (12)
Spot prices in the Asian ammonia market registered a relentless climb from mid-February until mid-May 2011, propelled by strong global demand and reduced availability on the back of regional production outages. Prices increased from $490-520/tonne CFR (cost & freight) Asia in mid-February to $555-575/tonne CFR Asia in mid-May 2011
So, if their claims are true that would mean somewhere between $ 200 - 300 for a tonne of ammonia using their process, thats quite an improvement even without vehicles using it...
Sep 05, 2011
Rank: 5 / 5 (2)
Sep 05, 2011
Rank: 3.7 / 5 (3)
Sep 05, 2011
Rank: 3.5 / 5 (2)
Sep 05, 2011
Rank: 4.6 / 5 (14)
Sep 05, 2011
Rank: 4.8 / 5 (4)
Took the words right out of my mouth....5 stars!
Sep 05, 2011
Rank: 2 / 5 (4)
The inventors "would be expected" to make their process and the ammonia as expensive as gas, or be sued for fraud or having unfortunate accidents...
Sep 05, 2011
Rank: 5 / 5 (5)
Methamphetamine manufacturers would be pretty jazzed though.
Sep 05, 2011
Rank: 5 / 5 (5)
http://www.cca-in...MNOx.htm
"Too easy to make ammonium nitrate with nitric acid, mix that with diesel oil and you are having a terrorist's fertilizer bomb."
Maybe we should tight controls on diesel oil as that an ingredient in your recipe for a fear based economy as well?
Sep 05, 2011
Rank: 4.4 / 5 (5)
Like other commenters, I'm also skeptical that ammonia will make a good transportation fuel. It's caustic, toxic, too damn handy if you want to make a car bomb, and if combustion is less than 100%, you'll get some truly nasty byproducts out of your exhaust.
I suppose if cheap ammonia production takes off, it might be a possible alternative fuel for power plants, where full combustion and risk can be better controlled. But for transportation, I'd rather see advances in battery technology come to market in EVs. Give us long ranges and quick recharges, and we'll be glad to say "bye" to the era of liquid transportation fuels.
Sep 05, 2011
Rank: 1.8 / 5 (5)
ford model a (1927-1931) got 25 to 30 mpg, where is the mpg for today? if you use less gas, big oil won't make huge profits for stockholders. why doesn't gov't buy/invest in oil companies? because then they would have to explain why the gdp fell. instead they keep it "private" cause they all own the publically traded stock and as stockholders have no responsibility, the corporation does. Didn't you people take business in college? corps hire lawyers to cut their taxes and lobby congress to change the laws to protect themselves. the a-model ford data ought to tell you something. The faster you go the more you pay, thats why the speed limit was raised back to 65, so mpg is less spend more. see the trend. try to go less than 55 onthe highway after all the fingers, the cops will stop you for obstructing traffic.
Sep 05, 2011
Rank: 1.3 / 5 (3)
Ammonia is a gas at STP.
Sep 05, 2011
Rank: 1 / 5 (4)
And highway speeds will have to go way down.
40 MPH highway will be the eventual speed limit.
Sep 05, 2011
Rank: not rated yet
Sep 05, 2011
Rank: 3.6 / 5 (5)
Sep 05, 2011
Rank: 3 / 5 (2)
even this person can see that lower consumption or an alternate source would still result in similar prices. even if we,as a group lowered demand, the producers would claim foul and get a subsidy like farmers get. got to maintain product turnover to keep the taxes filling the coffers. why no rich tax,because then the bills would get paid and middle class would rub shoulders with the upper class. can't have that huh? this is still thebest country and all that, but rich people put us here, not the poor. They make money because their friends in gov't can change the laws to their favor. doyou have a law requiring insurance? do you pay taxes? look around ok?
Sep 05, 2011
Rank: 1.8 / 5 (5)
Sep 05, 2011
Rank: 3.7 / 5 (3)
WHAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Like a baseball bat to the forehead.
Damn - that was quite an experience.
Recommended to everyone, to try at least ONCE in their life times.
Sep 05, 2011
Rank: not rated yet
The website you quoted mentions using the decomposition products of urea to react with existing NOx emissions on a catalyst. This doesn't address the fact that reacting ammonia in a car engine would almost certainly produce NOx under the right conditions; once the NOx in the exhaust gases are ejected from the engine block they are no longer at the same P,V,T conditions and will probably not react further.
Sep 05, 2011
Rank: not rated yet
Sep 06, 2011
Rank: 3 / 5 (2)
That's right! great idea! We already restrict and inspect everying liquid that goes on planes, so why stop? Lockdown everything! It's already a fear based economy. Sales and purchases of nitrate fertilizers are to be recorded, haven't you know?
Sep 06, 2011
Rank: 5 / 5 (1)
I wuz looking for some chemical in a cabinet of forgotten stuff, once upon a time (ie, not a sea story), and took a gentle sniff of what turned out to be ammonia. The baseball bat let me see stars. I smelled nothing for a long time.
Sep 06, 2011
Rank: 3.3 / 5 (3)
That's not true at all. Modern composites allow for much lighter vehicles which, in turn, allows for smaller, leaner burning engines.
My wife drives a Fiat 500 Twin Air. This has a 'huge' 85bhp engine that will top the car out at 108mph but, driven sensibly, returns an average of 65mpg. A lot of this is down to the lightness of using composites which, in some cases, are stronger than steel. F1 cars are purely composite but designed to be strong.
Losing gas guzzling engines for more efficient smaller engines is definitely the way forwards for everyday vehicles.
Sep 06, 2011
Rank: 5 / 5 (3)
As for concerns about unburnt ammonia in the exhaust, there are catalysts that can break ammonia down into nitrogen and hydrogen with very high efficiency at relatively low temperatures.
Sep 06, 2011
Rank: 1.5 / 5 (2)
Nature has shown the way and hydrocarbons are the best way to get a "handle" on hydrogen. Some form of Bio-diesel is probably near optimal, as there is virtually no loss of fuel (evaporation) during transportation, engine efficiency of a clean diesel engine is also superior because of the high compression ratios, and you can run all your heavy industry vehicles on it that needs the high torque diesel engines provide. Plus you save trillions by avoiding re-investing in a new infrastructure and all the mechanics get to keep their jobs.
Sep 06, 2011
Rank: 5 / 5 (1)
The extra fuel from the hundred of idling cars that are constantly stopping and starting as they approach the stop sign would be ridiculous.
Also, us using our own minds for our own safety doesn't work so well. That's why there are so many accidents. With your stop sign replacing all stoplights theory I could see many more accidents coming your way. I'm sure just stop signs will work great at 4-way 2 or 3 lane intersections.
I'd lay off.
Sep 06, 2011
Rank: 4.5 / 5 (2)
Sep 07, 2011
Rank: 3 / 5 (1)
A lot of European cars are fitted with automatic stop/start systems for exactly this reason.
TBH you don't notice it working after the first couple of times.
Sep 08, 2011
Rank: not rated yet
I'll tell you why I rated you badly. First, your above statement doesn't answer the question. Molecular Nitrogen and Oxygen are both gasses, and they can be dissolved in, for example, water.
Second, the discussion of Ammonia as a fuel has been around the idea that you would have a more closed tank system, allowing something higher than standard pressure.
Also, the 40 mile speed limit you suggested has nothing to do with reality. 55 is the most efficient speed. MPG regulations are put in place due to limited resources in order to best help everyone get the gas they need, and to help reduce pollution.
If you have a non-polluting fuel, that can essentially be made forever (NH4 creation uses no limited resources), there would be little or no reason to have any regulations other than to make sure the consumer can get from A to B safely.
Sep 09, 2011
Rank: 5 / 5 (1)
Sep 09, 2011
Rank: 5 / 5 (1)
Yes, but not immediately. You'd have to let it ripen for a few days. Or you can find some feral cats to get you there.
Sep 10, 2011
Rank: not rated yet
Sep 10, 2011
Rank: not rated yet
Sep 11, 2011
Rank: not rated yet
Also: There's not that much difference in the effect of bursting a tank of gasoline (very rare these days) and a tank of ammonia. Both would be a disaster but at least the ammonia is very unlikely to burn outside since it has a much higher ignition temperature.