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The '''Catalytic converter''' was introduced in 1975 to comply with the tightening [[Environmental Protection Agency]] (EPA) regulations on auto exhaust. The job of the catalytic converter is to convert harmful [[pollution|pollutants]] into less harmful [[emissions]] before they leave the car’s exhaust system. Catalytic converters typically consist of a ceramic or metal honeycombed monolith substrate that carries precious metal catalysts. The coated substrate is wrapped in an intumescent mat that expands when heated, securing and [[insulation|insulating]] the substrate which is packaged in a stainless steel shell and fitted into the engine exhaust system. As exhaust gases pass over the catalysts, they promote chemical reactions that convert pollutants into harmless gases and water. <ref>http://www.catalyticonverters.com/</ref>
"Hybrid gas-electric cars such as the [[Toyota]] Prius and [[Honda]] Insight are nearly twice as fuel efficient as other cars, but they produce less than 10 percent as much [[pollution]]. Much of the pollution reduction comes from a simple device designed to insure that the '''catalytic converter''' runs at its optimal temperature at all times. If incentives created a market for pollution-reducing equipment, it would be easy for someone to design and sell a catalytic converter heater for existing cars." [http://americandreamcoalition.org/pollution/pollution.html]
"Hybrid gas-electric cars such as the [[Toyota]] Prius and [[Honda]] Insight are nearly twice as fuel efficient as other cars, but they produce less than 10 percent as much [[pollution]]. Much of the pollution reduction comes from a simple device designed to insure that the '''catalytic converter''' runs at its optimal temperature at all times. If incentives created a market for pollution-reducing equipment, it would be easy for someone to design and sell a catalytic converter heater for existing cars." [http://americandreamcoalition.org/pollution/pollution.html]
It only works when it's hot enough (400 degrees), which requires your car to go 50 to 60 mph. [[Traffic congestion]] lets the catalytic converter cool down, rendering it ineffective.
It only works when it's hot enough (400 degrees), which requires your car to go 50 to 60 mph. [[Traffic congestion]] lets the catalytic converter cool down, rendering it ineffective.
==References==
<references/>
[[Category:Technology]]
[[Category:Technology]]