To meet the post-1975 exhaust emission standards for HC and CO, most 1975 and later vehicles soled within the US and Canada had catalytic converters. The converters contained a catalyst made up of platinum or palladium that promoted an oxidizing chemical reaction. This reaction brought about the HC and CO within the exhaust to combine with oxygen and form water and carbon dioxide. The catalyst was deposited on a substrate materials in the converter housing. The converter was installed in the exhaust system forward of the muffler. The very first oxidation catalytic converters used on most 1975 in addition to later automobiles weren’t effective against NO emissions. NO control requires a process that removes oxygen from the oxides of nitrogen.
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three) There are usually not very many gasoline stations around that promote CNG. In fact fuel stations throughout the nation are properly behind those who sell … Read More