Honeycomb Ceramic Substrate for Catalytic Converters

Ceramic Honeycomb Substrate is honeycomb-like structures with thousands of parallel channels. The walls of these channels provide the surface for precious-metal catalysts that convert noxious emissions into carbon dioxide, nitrogen and water vapor. The gasoline engine tail gas purifier carrier coated with catalyst is suitable for and is currently one of the most important means to control tail gas purification for gasoline engine discharge of tail gas in motorized vehicles. The honeycomb substrate ceramics are characterized by unique honeycomb structure, low expansion coefficient, good thermal stability, large specific area and low pressure loss, and reach domestic advanced level.



Automobile exhaust gases are conventionally purified with a catalyst supported on a ceramic body able to withstand high temperatures. The preferred catalyst support structure is a honeycomb configuration which includes a multiplicity of unobstructed parallel channels sized to permit gas flow and bounded by thin ceramic walls. The walls of these channels provide the surface for precious-metal catalysts that convert noxious emissions into carbon dioxide, nitrogen and water vapor. After coating with catalysts, this product is applied in catalytic converter of diesel vehicle to catalyze, convert and purify the exhaust, making vehicle exhaust reaching standards of Euro IV and Euro V.

Specification:
Shape of the products: Cylinder, trapezoid, oval-shaped, racetrack-shaped
Pore density: 400cpsi (cell per square inch)
Material: Cordierite
Available size such as Φ 93x100, Φ 103x80, Φ 118x100, Φ 106x130, etc

Advantages:
*Compared with other material, more higher anti-temp, and better thermal stablity
*High surface area, thin wall thickess, good purification
*Low backpressure, loose equipment cost
 

used in car ( gas )		(mm)	Litre
400 sells per square inch	Round shape	φ 150*100	1.767
		φ 144*152.4	2.482
		φ 118*152.4	1.667
		φ 115.4*152.4	1.594
		φ 106*100.4	0.886
		φ 103*100	0.833
		φ 101.6*152.4	1.236
		φ 100*100	0.786
		φ 93*152.4	1.035
		φ 83*152.4	0.825
		φ 80*100	0.503
		φ 76*50	0.227
		φ 41*25	0.033
	Racetrack ellipse	P169*80.8*115	1.41
		P148*84*152.4	1.66
		P144.8*81.3*127	1.32
		P127*63.5*152.4	1.10
		P93*61*91	0.44
		P120.6*80*152.4	1.26
		P143*98*152.4	1.82
		P147*95*152.4	1.83
		P177.8*114.3*170	2.98
	abnormity	T144*84*75	0.713
		T114*105*75	1.081
		T120.2*108.2*75	0.766
		T112.2*92*115	0.932
		T119.5*99.5*115	1.074
		T122.3*104.4*80	0.802
		(mm)section size	(mm)max length	Litre
300 sells per square inch	Round shape	144.0000	200.0000	3.258
		150.0000	200.0000	3.535
		190.0000	200.0000	5.671
		220.0000	200.0000	7.604
		240.0000	200.0000	9.049
600 cells per square inch		93.0000	152.4000	1.035
		101.6000	152.4000	1.236
		118.0000	152.4000	1.667

 

Items		Parameters
Chemical Composition (%)	SiO2	49~51
	Al2O3	33~35
	MgO	13~14
Wall Thickness	100 CPSI	0.43
	200 CPSI	0.32
	300 CPSI	0.30
	400 CPSI	0.18
	600 CPSI	0.15
Compressive Strength (MPa)	A-Cut (Parallel Channels)	≥ 16
	B-Cut (Vertical Channels)	≥ 3
Water Absorption(%)		25 ± 2
Coefficient of Thermal Expansion (10-6/K-1)		0.8~2.0
Maximum Operating Temperature ( ° C)		≥ 1370
Bulk Density (Kg/L)		0.43~0.75