Three Way Catalytic Converter Diagram

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.

Three way catalytic converter diagram. It uses platinum and rhodium to help reduce the nox emissions. Two way converters operate relatively efficiently with a lean fuel mixture. Ineffectiveness in controlling nox nitrogen oxides led to the introduction of three way converters. The substrate of the doc is usually ceramic or metallic mesh and its washcoat contains a catalyst pd pt combination.

The reduction and oxidation catalysts are typically contained in a common housing. Figure schematic diagram of the three way catalytic converter. Types of catalytic converter. The reduction catalyst is the first stage of the catalytic converter.

Hydrocarbon no co 2 h 2 o n 2. The engine exhaust gases contain hazardous substances that cause damage to the environment. Most modern cars are equipped with three way catalytic converters this refers to the three regulated emissions it helps to reduce. Working principle of 2 way and 3 way catalytic converter function of catalyst animation video catalytic converter types of catalytic converter 3 way catalytic.

2 h 2 2 no 2 h 2 o n 2. These include the oxides of nitrogen hydrocarbons and carbon. The main drawback of lean burning is that a complex catalytic converter system is required to reduce nox emissions. Figure schematic diagram of the three way catalytic converter.

The catalytic converter in a metal canister is placed in the exhaust system of the vehicle. Three way plus air catalytic converters. 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. 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.

A three way catalytic converter has three simultaneous tasks. Reduction of nitrogen oxides to nitrogen n 2 2 co 2 no 2 co 2 n 2. Allows reduction of nox nitrogen oxides to n2 nitrogen and o2 oxygen. The catalytic converter in a metal canister is placed in the exhaust system of the vehicle.

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. 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.