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Catalytic converters, V6

Catalytic converters, V6


Two catalytic converters are used to reduce exhaust emissions. They can oxidise hydrocarbons (HC) and carbon monoxide (CO) to carbon dioxide (CO 2 ) and water (H 2 O). The catalytic converters can also help to oxidise some of the particles that are formed in the exhaust gases emitted by diesel engines.

A catalytic converter comprises a ceramic substrate (monolith) with a porous layer to increase the active surface. This layer contains microscopic particles of the catalyst platinum (Pt).