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Old 09-28-2012, 01:37 PM   #631
chimchimm5
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Quote:
Originally Posted by StealthTL View Post
Sorry, assumed you knew how the catalyst works - it only catalyses CO to CO2 above 450*F, but will self-heat when fuel and oxygen are present, so instead of waiting until exhaust gas heats the media to temperature, they add some gas+air to the reaction and 'light it off' much quicker.

Then they keep the mix over-rich to keep the reaction going.

http://community.discovery.com/eve/f...8/m/4911967329
Ah ok. Yeah I had known that the catalyst only works when at hot enough temperature... but I guess that applies to the CO->CO2 conversion. So you're saying, that at ambient temperatures, the presence of gasoline hydrocarbons mixed with O2 the catalyst causes the two to spontaneous react/burn?

I only have two quarters of Chem in my background.
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