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Created with Fabric.js 1.4.5 How Does a CatalyticConverter Work? How Does a CatalyticConverter Work? And What Does it Do? Catalytic converters are present in cars and their job is to turn harmful exhaust emissions into lessharmful and harmless substances before they leave the car. It does this by using catalysts; which aresubstances which trigger a reaction without being affected. The catalysts used in most catalytic converters are platinum (Pt),palladium (Pd) and rhodium (Rd). There are two reactions:reduction, which takes out the nitrous oxides and oxidization which takes outthe carbon monoxide and hydrocarbons. The reactants in first reduction reaction are: 2NO,the products are: N2 +O2. The reactants in thesecond reduction reaction are: 2NO2, the productsare: N2 + 2O2, the catalysts for both are: Pt + Rd.The reactants in the first oxidization reaction are:2CO + O2, the products are: 2CO2 The reactants inthe second oxidization reaction are:HxCy + O2, the products are: CO2 + H2O, the catalysts for both are: Pd + Pd. The only concern with a catalytic converteris that it does not work as well in cooler temperatures and therefore does not workas well in diesel engines because they operate at a cooler temperature thangasoline engines. However are numerous health and environmental benefits. Theyreduce smog which can cause lung cancerby taking out hydrocarbons. They alsotake out nitrogen oxides which can causeacid rain which hurts the environment.And finally they take out carbon monoxidewhich is a deadly gas. ReductionReaction 1: 2NO 2NO 2NO 2NO N2 O2 2O ReductionReaction 2: 2NO2 N2 2O2 ReductionCatylists: Pt Pd OxidizationReaction 1: 2CO O2 2CO2 OxidizationReaction 2: HC O2 CO2 H2O OxidizationCatalysts: Pt Rd
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