The chemical composition of cordierite is 2MgO-Al2O3-5SiO2. Calculating with the percentage of weight, the proportion as below
MgO = 13.8%,
Al2O3 =34.8%
SiO2 = 51.4%
It has very small thermal expansivity, so it is the main material of honeycomb ceramic substrate in catalytic converter. Cordierite material is formed with stable regular hexagon structure of AlSi5O13. The six corners of regular hexagon circle structure is consisted separately with five regular tetrahedron of SiO4, one regular tetrahedron crystal of AlO4. Ideal a-cordierite crystal is formed between regular hexagonal ring structure with regular octahedron of AlO6 and MgO6. A-cordierite crystal has decisive effect to the low thermal expansivity and excellent thermal-shock resistance. The working temperature of cordierite honeycomb ceramic substrate could reach 1300℃ and with its high density honeycomb structure 400CPSI and super thin wall thickness, it has very large surface area, low exhaust resistance, stable chemical property, sharp temperature increase. So it becomes the ideal catalyst carrier.
CO and volatile organic compounds oxidation catalyst
CO and volatile organic compounds emitted from various industrial processes are atmospheric pollutants. CO is a type of colorless and toxic gas. Volatile organic hydrocarbons participate in photochemical reaction to make ozone and organic smoke. It will cause various sickness. So it is benefit to our life to remove CO and hydrocarbons compounds from the exhaust gas.
Oxidation and decomposition catalyst for volatile organic compounds change the CO and volatile organic compound VOC to harmless CO2 and H2O to improve the human beings living and working environment.
This type of catalyst is mainly used in the exhaust gas purification in fields of cars, motor, chemical industries, paint, thermal power. It also used for smoking treatment in home cooking.
Advantage:
1.Professional catalyst technology to ensure providing different efficient catalyst formula for various different harmful gas pollutants.
2.Low initiation temperature
3.Long service life
We could provide catalyst with ceramic honeycomb carrier and metal honeycomb carrier.
Exhaust gas oxidation catalyst of diesel engine
Exhaust gas pollutant of diesel engine includes carbon CO, hydrocarbons, nitrogen oxides, sulphides and black dust particles. The catalyst of the diesel engine exhaust oxidation catalyst is composed of precious metal of Platinum, palladium and rhodium and rare earth such as cerium nitrate coated on the surface of ceramic or metal substrate. Our oxidation purifier can ensure to remove 95% CO, 95% hydrocarbon and 30% black smoke particle pollutant. We can provide the corresponding design and manufacture of catalytic purifier according to different operation conditions of the diesel engine.
Main advantage
1.It is convenient to use and don’t need frequent repair.
2.The catalyst ignition temperature is relatively low
3.It has long working life, normally more than 100,000km
4.It is suitable for road and non-road diesel engine
