Three Way Catalytic Converter Diagram

Allows reduction of nox nitrogen oxides to n2 nitrogen and o2 oxygen.

Three way catalytic converter diagram. As the exhaust gases pass through it they flow through the channels in the ceramic monolith where they encounter the particles of alumina impregnated with the metal catalysts. Ineffectiveness in controlling nox nitrogen oxides led to the introduction of three way converters. Working principle of 2 way and 3 way catalytic converter function of catalyst animation video catalytic converter types of catalytic converter 3 way catalytic. The reduction and oxidation catalysts are typically contained in a common housing.

The reduction catalyst is the first stage of the catalytic converter. 2 h 2 2 no 2 h 2 o n 2. Most modern cars are equipped with three way catalytic converters this refers to the three regulated emissions it helps to reduce. It uses platinum and rhodium to help reduce the nox emissions.

Types of catalytic converter. Hydrocarbon no co 2 h 2 o n 2. Reduction of nitrogen oxides to nitrogen n 2 2 co 2 no 2 co 2 n 2. However in some instances they may be housed separately.

Three way plus air catalytic converters. The engine exhaust gases contain hazardous substances that cause damage to the environment. Figure schematic diagram of the three way catalytic converter. The substrate of the doc is usually ceramic or metallic mesh and its washcoat contains a catalyst pd pt combination.

The main drawback of lean burning is that a complex catalytic converter system is required to reduce nox emissions. The catalytic converter or catcon in your car is actually a very important element of the car s exhaust system because it removes harmful nitrogen oxides no x x 1 2 3 and carbon monoxide co from the combustion residues before they are released into the environment. The last type is the three way catalytic converter. These include the oxides of nitrogen hydrocarbons and carbon.

Lean burn engines do not work well with modern 3 way catalytic converter which requires a pollutant balance at the exhaust port so they can carry out oxidation and reduction reactions so most modern engines run at or near the. Catalytic converters have been used in vehicle emissions control for many years e g three way catalytic twc converters in spark ignition engines during the past several decades and docs in diesel engines since the 1990s. The three way catalyst helps in converting the harmful gases exhausted from the engine into harmless gases. As the exhaust gases pass through it they flow through the channels in the ceramic monolith where they encounter the particles of alumina impregnated with the metal catalysts.

Figure schematic diagram of the three way catalytic converter. Two way converters operate relatively efficiently with a lean fuel mixture.