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  2. Catalytic converter - Wikipedia

    en.wikipedia.org/wiki/Catalytic_converter

    A three-way catalytic converter on a gasoline-powered 1996 Dodge Ram Simulation of flow inside a catalytic converter. A catalytic converter is an exhaust emission control device which converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.

  3. NOx adsorber - Wikipedia

    en.wikipedia.org/wiki/NOx_adsorber

    The 3-way catalytic converter that has been successfully used since the 1980s on stoichiometric engines (such as fueled by petrol, LPG, CNG, or ethanol) will not function at O 2 levels in excess of 1.0%, and does not function well at levels above 0.5%.

  4. Carl D. Keith - Wikipedia

    en.wikipedia.org/wiki/Carl_D._Keith

    Carl Donald Keith (May 29, 1920 – November 9, 2008) was a chemist who was inventor of the three-way catalytic converter, which has played a dramatic role in reducing pollution from motor vehicles since their introduction in the mid-1970s.

  5. Talk:Catalytic converter/Archive 1 - Wikipedia

    en.wikipedia.org/wiki/Talk:Catalytic_converter/...

    7 Other types of catalytic converter. 2 comments. 8 Peer review: CC History. 1 comment. 9 Q: 5 comments. 10 This section doesn't make sense. 1 comment. 11 Air Tubes ...

  6. Vehicle emissions control - Wikipedia

    en.wikipedia.org/wiki/Vehicle_emissions_control

    The system implementation (was to) be phased in over three years. In the 1979 model year. California vehicles with 2.5, 2.8 and 3.5 liter engines will have a CLCC system. In 1980 model year, vehicles sold in California and 3.8 and 4.3 liter engines sold federally will have CLCC, and finally in the 1981 model year all passenger cars will have ...

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  8. Selective catalytic reduction - Wikipedia

    en.wikipedia.org/wiki/Selective_catalytic_reduction

    SCR systems are now the preferred method for meeting Tier 4 Final and EURO 6 diesel emissions standards for heavy trucks, cars and light commercial vehicles. As a result, emissions of NOx, particulates , and hydrocarbons have been lowered by as much as 95% when compared with pre-emissions engines.

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