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Cheaper, Cleaner Diesel Emissions


Science & Tech  (tags: discovery, concept, design, research, study, science, environment, pollution, diesel )

Michael
- 821 days ago - ecogeek.org
The catalytic converters that reduce nitrogen oxides and other harmful emissions help keep the air clean, but rely on rare and expensive minerals such as platinum and palladium, which increases the overall cost of vehicles.



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Comments

Michael O. (175)
Saturday September 15, 2012, 9:00 pm
But an alternative, that does not rely on these expensive materials, offers better performance and at a lower cost.

Using a synthetic version of a material called mullite, researchers found that the pollution levels from diesel engines were up to 45% lower than those using conventional platinum catalysts. Although it is a synthetically created material, it is still less expensive than the rare minerals which are currently used.

One unanswered question is whether the same materials can also be usefully applied to conventional gasoline engines, to provide cleaner exhausts from those vehicles at a lower cost, as well.

 

Past Member (0)
Sunday September 16, 2012, 3:10 am
This is a step in the right direction.
 

g d c. (0)
Sunday September 16, 2012, 12:27 pm
ty
 

Roger Garin-michaud (113)
Sunday September 16, 2012, 12:44 pm
noted thanks !
 

Tal H. (8)
Monday September 17, 2012, 9:05 pm
Thanks for sharing!
 

Fred Krohn (34)
Tuesday September 18, 2012, 3:53 pm
Why not use an afterburner and MHD converter to improve the efficiency of combustion by generating added electricity to propel the car, instead of just pushing the exhaust through backpressure-boosting catalyst beds that do little more than exchange one sort of pollution for another? I've distrusted those sulferous-odoured catalyst gadgets since day one.
 

Jennifer C. (169)
Thursday September 20, 2012, 5:27 pm
Noted. Thanks.
 
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