Three Way Catalytic Converter Diagram

A three way catalytic converter has three simultaneous tasks.

Three way catalytic converter diagram. The reduction and oxidation catalysts are typically contained in a common housing. 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. 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. Reduction of nitrogen oxides to nitrogen n 2 2 co 2 no 2 co 2 n 2.

The substrate of the doc is usually ceramic or metallic mesh and its washcoat contains a catalyst pd pt combination. The reduction catalyst is the first stage of the catalytic converter. The three way catalyst helps in converting the harmful gases exhausted from the engine into harmless gases. The engine exhaust gases contain hazardous substances that cause damage to the environment.

Allows reduction of nox nitrogen oxides to n2 nitrogen and o2 oxygen. Hydrocarbon no co 2 h 2 o n 2. Ineffectiveness in controlling nox nitrogen oxides led to the introduction of three way converters. 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 catalytic converter in a metal canister is placed in the exhaust system of the vehicle. It uses platinum and rhodium to help reduce the nox emissions. Three way plus air catalytic converters. 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.

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. Types of catalytic converter. Two way converters operate relatively efficiently with a lean fuel mixture. 2 h 2 2 no 2 h 2 o n 2.

Figure schematic diagram of the three way catalytic converter. Most modern cars are equipped with three way catalytic converters this refers to the three regulated emissions it helps to reduce. Figure schematic diagram of the three way catalytic converter. 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 last type is the three way catalytic converter. However in some instances they may be housed separately.