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Types of Catalytic Converters : Monolithic

Monolithic Catalytic Converter: Catalytic converter with a catalyst-coated, ceramic honeycomb monolith (monolith is a large block of stone or anything that resembles one in appearance, intractability, etc) through which the exhaust gases pass. Predominately the catalytic converter contains a palladium-impregnated ceramic honeycomb monolith then a platinum and rhodium-impregnated ceramic honeycomb monolith. The exhaust gas flow contacts the palladium-impregnated monolith then contacts the platinum and rhodium-impregnated monolith. The operating temperature of a cat is between 350 to 400 degrees Celsius which causes a chemical reaction to occur as the exhaust gases flow through the coated monolith. The harmful gases are oxidised and converted. Monolithic-type catalytic converters have mostly replaced pellet converters. See patent for monolithic catalytic converter Chemical Engineering Study : Prague Animated Working Monolithic Converter

Three-Way + Air