Carbon Monoxide
Remove harmful pollutants from the exhaust gases.
Catalytic Converters
A catalytic converter is used to remove toxic gases from the exhaust.
So the gases are in contact with a bigger area of catalyst
Nitrogen and carbon dioxide.
Catalytic Converters operate their best at high temperatures. Cooling the gasses would be counter productive.
A catalytic converter is a piece of an automotive exhaust system. The catalytic converter often contains precious metals. As exhaust gases pass through the catalytic converter, chemical reactions occur which convert pollutant gases into less harmful ones.
Because it converts toxic gases from the exhaust into less toxic substances. It does this by means of a catalyst which stimulaters a chemical reaction which changes the toxic gases. Therefore the term Catalytic Converter.
Catalytic converters help reduce emissions of nitrogen oxides and sulfur dioxide, which are precursors to acid rain. By converting these harmful gases into less harmful substances, catalytic converters contribute to lowering the levels of pollutants that can lead to acid rain.
Dirty gases can be cleaned through mechanisms such as using filters to remove particulate matter, using scrubbers to remove pollutants through chemical reactions, and employing electrostatic precipitators to remove particles through electrical charges. Additionally, technologies like catalytic converters can be used to convert harmful gases into less harmful substances through catalyzed reactions.
Catalytic Converters
You are probably referring to catalytic converters. These are mechanisms that turn harmful gases and other particles into nitrogen gas. The correct spelling will lead to you a variety of helpful websites.