ceramic cylinder honeycomb

Catalyst for gasoline vehicles

Cordierite is a magnesium alumina silicate material, which has very low linear expansion, low coefficient of thermal expansion and excellent resistance to thermal shock. Cordierite also offers an excellent range of mechanical strength, porosity criteria, and excels in cost-effective extruded and dry-pressed forms.

Cordierite Honeycomb Monoliths are divided into two types: porous type and compact type.

Catalytic Principle

Using the noble metal catalyst which coated on the carrier, catalyze the harmful gases such as HC, CO, NOx, etc. at a suitable temperature, to make the reaction between three kinds of harmful gases, the reaction equation is as follows:
2CO+O2=CO2
2C2H6+7O2=CO2+6H2O
2NO+2CO=N2+2CO2

Characteristics

• large specific surface area: to ensure full access to the exhaust gas with the catalyst.
• stable water absorption: to ensure the catalyst evenly firmly attached to the surface of the catalyst carrier.
• Warm-up: after startup the engine, the temperature of the carrier can reach the catalyst activation temperature in theshortest possible time.
• low exhaust resistance: the engine’s exhaust resistance is small, to ensure that doesn’t affect the engine performance.
• high strength: the operating environment of the catalyst carrier is in the bumpy car, so the catalyst carrier must be high strength without being external damage.
• good assembly: the carrier is an exhaust assembly parts, only good appearance and precise dimensions can ensure perfect assembly.