Ceramic Honeycomb Substrate Catalyst Detailed Information:
Ceramic Honeycomb Substrate is coated with noble metals such as Pt, Pd and RH to be the catalyst. At the same time, we improve the specific surface areas and cut down the heat capacity to increase the catalyst function. When the noxious emissions pass through, HC, CO and NOX will be converted into harmless components.
The preferred catalyst support structure is honeycomb ceramic substrate 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. We can manufacture the honeycomb ceramic substrate with coated and non-coated precious-metals.
The material for ceramic honeycomb substrate is cordierite. The major features for such cordierite are low thermal expansion coefficient, good thermal shock resistance, high anti-acid, anti-alkali and anti-erosion function and good mechanical strength. The usual CPSI for honeycomb ceramic substrate is 400, and the shape can be round, racetrack, ellipse and other special shape as per customer's requirement in order to meet the different cars/motorcycle models demands.
Features:
*High specific surface area: Ensure exhaust gas could contact weigh catalyst enough
*Stable water absorption: Guarantee catalyst could be firmly and evenly coated on the surface of substrate, so it's no waste for too thick coating
*Warm up characters: After starting up engine, the temperature of substrate could reach the active temperature of catalyst in the shortest time
*Low exhaust resistance: Ask exhaust resistance of substrate to engine low, so that it won't affect the performance of engine
*High intensity: Substrates work in bumpy cars, so the intensity of substrates must be too high to be destroyed
*Perfect assembly: Substrates are parts of exhaust; Perfect appearance and exact dimension could ensure assembly perfect
Ceramic Honeycomb Substrate is coated with noble metals such as Pt, Pd and RH to be the catalyst. At the same time, we improve the specific surface areas and cut down the heat capacity to increase the catalyst function. When the noxious emissions pass through, HC, CO and NOX will be converted into harmless components.
The preferred catalyst support structure is honeycomb ceramic substrate 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. We can manufacture the honeycomb ceramic substrate with coated and non-coated precious-metals.
The material for ceramic honeycomb substrate is cordierite. The major features for such cordierite are low thermal expansion coefficient, good thermal shock resistance, high anti-acid, anti-alkali and anti-erosion function and good mechanical strength. The usual CPSI for honeycomb ceramic substrate is 400, and the shape can be round, racetrack, ellipse and other special shape as per customer's requirement in order to meet the different cars/motorcycle models demands.
Features:
*High specific surface area: Ensure exhaust gas could contact weigh catalyst enough
*Stable water absorption: Guarantee catalyst could be firmly and evenly coated on the surface of substrate, so it's no waste for too thick coating
*Warm up characters: After starting up engine, the temperature of substrate could reach the active temperature of catalyst in the shortest time
*Low exhaust resistance: Ask exhaust resistance of substrate to engine low, so that it won't affect the performance of engine
*High intensity: Substrates work in bumpy cars, so the intensity of substrates must be too high to be destroyed
*Perfect assembly: Substrates are parts of exhaust; Perfect appearance and exact dimension could ensure assembly perfect
| Shape | Hole density (hole/in 2 ) | Size (mm) | Size (inch) |
| Round | 300 CPSI | Φ 101.6 x152.4 | 4 × 6 |
| Round | 300 CPSI | Φ 118.4 x100 | 4.66 × 3.94 |
| Round | 300 CPSI | Φ 118.4 x152.4 | 4.66 × 6 |
| Round | 300 CPSI | Φ 150 x100 | 5.9 × 3.94 |
| Round | 300 CPSI | Φ 170 x100 | 6.69 × 3.94 |
| Round | 300 CPSI | Φ 190 x100 | 7.48 × 3.94 |
| Round | 300 CPSI | Φ 210 x130 | 8.26 × 5.12 |
| Round | 300 CPSI | Φ 240 x76.2 | 9.45 × 3 |
| Round | 300 CPSI | Φ 240 x100 | 9.45 × 3.94 |
| Oval | 300 CPSI | Φ 120.6 x 80 x 152.4 | 4.75 × 3.15 × 6 |
| Oval | 300 CPSI | Φ 144.8 x 81.3 x 152.4 | 5.7 × 3.2 × 6 |
| Oval | 300 CPSI | Φ 169.7 x 80.8 x 115 | 6.68 × 3.18 × 4.52 |
| Round | 400 CPSI | Φ 150 x100 | 5.9 × 3.94 |
| Round | 400 CPSI | Φ 144 x 152.4 | 5.66 × 6 |
| Round | 400 CPSI | Φ 118.4 x 152.4 | 4.66 × 6 |
| Round | 400 CPSI | Φ 115.4 x 152.4 | 4.54 × 6 |
| Round | 400 CPSI | Φ 106 x 100 | 4.17 × 3.94 |
| Round | 400 CPSI | Φ 103 x 100 | 4.05 × 3.94 |
| Round | 400 CPSI | Φ 101.6 x 152.4 | 4 × 6 |
| Round | 400 CPSI | Φ 100 x 100 | 3.94 × 3.94 |
| Round | 400 CPSI | Φ 93 x 152.4 | 3.66 × 6 |
| Round | 400 CPSI | Φ 83 x 152.4 | 3.26 × 6 |
| Round | 400 CPSI | Φ 80 x 100 | 3.15 × 3.94 |
| Round | 400 CPSI | Φ 76.2 × 50 | 3 × 1.97 |
| Round | 400 CPSI | Φ 60 × 85 | 2.36 × 3.34 |
| Oval | 400 CPSI | Φ 169 x 85.7 x 115 | 6.65 x 3.37 x 4.52 |
| Oval | 400 CPSI | Φ 169 x 80.8 x 115 | 6.65 x 3.18 x 4.52 |
| Oval | 400 CPSI | Φ 148 x 84 x 152.4 | 5.82 x 3.3 x 6 |
| Oval | 400 CPSI | Φ 144.8 x 81.3 x 152.4 | 5.7 x 3.2 x 6 |
| Oval | 400 CPSI | Φ 127 x 63.5 x 152.4 | 5 x 2.5 x 6 |
| Oval | 400 CPSI | Φ 93 x 61 x 90 | 3.66 x2.4 x 3.54 |
| Oval | 400 CPSI | Φ 120.6 x 80 x 152.4 | 4.75 x 3.15 x6 |
| Oval | 400 CPSI | Φ 143 x 98 x 152.4 | 5.63 x 3.86 x 6 |
| Oval | 400 CPSI | Φ 147 x 95 x 152.4 | 5.78 x 3.74 x 6 |
| Oval | 400 CPSI | Φ 177.8 x 114.3 x 170 | 7 x 4.5 x 6.7 |
| Item | Index | ||||||
| 2 0 0 CPSI | 300C PSI | 400 CPSI | 600CPSI | ||||
| Volume Weight kg/cm ³ | ≤ 0.70 | ||||||
| Water Absorption% | 20-27 | ||||||
| Resistance to normal atmospheric temperature | X(Parallel to channels) | ≥ 50 | ≥ 50 | ≥ 65 | |||
| Y(Vertical to channels) | ≥ 160 | ≥ 180 | ≥ 200 | ||||
| Coefficient of Thermal Expansion ° C-1(20-800 ° C) | ≤ 1.50*10-6 | ||||||
| Soften temperature ° C | >1450 | ||||||
| Thermal stability 800 ° C | ≥ 3 | ||||||
| Specific Surface Area (cm ² /cm ³ ) | ≥ 20 | ||||||
| Chemical composition range% | Al2O3 | SiO2 | MgO | K2O+Na2O | Fe2O3 | Others | |
| 31~34 | 48~21 | 12~14 | <1 | <0.5 | <1 | ||
| Specific heat20-100 ° C J/KG.K | 800-900 | 800-950 | 800-1200 | 750-800 | 850-1100 | 840-920 | |
| Theraml conductivity20-100 ° C W/m.k | 1.5-2.5 | 1.4-2.0 | 1.5-2.5 | 1.5-1.5 | |||