🚀 go-pugleaf

Wes Younger (wy8@prism.gatech.edu) wrote:
: This is true(r) in places like Los Angeles, where the limiting reactant in
: the smog formation equation is hydrocarbons. If you shut the engine off, the
: catalytic converter cools down and so is less efficient when you restart the
: engine (until it's hot again). Hydrocarbons are in abundance in Atlanta, and
: in fact, recent study has found that they would be even if there were no
: humans here.
: 
: The limiting reactant in Atlanta (and most of the southeast) is not
: hydrocarbons- it's NOx, which aren't particularly affected by catalytic
: converters at all.

Sorry, they are.  Catcons specifically are designed to reduce nitrogen
oxides to nitrogen.  That's why they're all called "3-way catalysts" --
they minimize CO, hydrocarbons, and NOx.