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Old 06-04-2017, 04:33 PM   #1 (permalink)
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More efficient catalytic converter

A couple years ago, a team in England invented a more efficient catalytic converter design. Saves fuel and reduces emissions, they claim. They also claim it uses up to 80% less metals and therefore could cut the cost of producing CATs by well over half. Here is the story:
https://phys.org/news/2014-01-cataly...ption-car.html

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Old 06-04-2017, 05:13 PM   #2 (permalink)
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Do we know if this design ever was adopted?
Sounds like an all around win for everyone.
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Old 06-04-2017, 09:56 PM   #3 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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Quote:
Originally Posted by oil pan 4 View Post
Do we know if this design ever was adopted?
Sounds like an all around win for everyone.
I did a quick search but did not see anything brought to market. Searching for that, however, also yielded information on the "EmiCat" from a company called "EmiTec." It seems to be an electric-heated "pre-cat" to increase overall CAT efficiency (sort of) by reducing cold start emissions until the conventional catalyst has time to heat up. That technology has apparently been available a long time. Alpina put the thing into a 1999 12 cyl BMW seven series, apparently. And I found academic papers going back about 20 years. Seems like a cool emissions device. Maybe cost is what keeps it from becoming more common equipment.

Continental Emitec GmbH

Here is the emicat in line in the exhaust:


Pretty clever.

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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