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Alumina Honeycomb ceramic:
Catalytic Converter Substrate is used in a variety of catalytic converter applications to help vehicle manufactures meet emission regulations. These advanced substrate with high temperature durability, high surface area for conversion efficiency, and to meet specific emission system design.
Heat Storage Substrate:
Honeycomb Ceramic Heat Storage substrate specially used in steel heat furnace, which high specific surface area, good thermal stability, excellent thermal shock resistance, it can achieve high temperature efficiency and got more remaining heat.
Catalyst Supports
Honeycomb ceramic catalyst supports with high resistance to thermal shock, high thermal durability, high specific surface area, low pressure drop, rapid light-off and unique structures . Thousands of cells provide the high surface for precious metal catalysts that convert noxious emission into water vapor, carbon dioxide and so on.
Item | Unit | Porous Cordierite | Dense Cordierite | Mullite Heat accumulator | Mullite corundum heat |
Specific weight | g/cm³ | 1.75-1.9 | 2.4-2.48 | 2.1-2.5 | 2.5-2.6 |
Lo-efficient of heated expanding (20-1000°C) | 1-2*10 -6/°C | 2.5-5.0 | 1.3-3.5 | 5.5-6.5 | 5.5-6.0 |
Specific heat | J/Kg.K | 700-800 | 800-1200 | 850-1050 | 800-900 |
Thermal Conductivity | W/mk | 1.2-1.5 | 1.5-2.5 | 1.5-2.0 | 1.5-2.5 |
Thermal shock | K | Min 300 | Min 250 | Min 350 | Min 350 |
Soften temperature | °C | 1300 | 1300 | 1500 | 1600 |
Item | Unit | Corundum heat accumulator | Oxidation aluminum heat accumulator | Spinel accumulator |
Specific weight | g/cm³ | 3.2-3.8 | 2.5-2.6 | 2.5-2.6 |
Lo-efficient of heated expanding (20-1000°C) | 1-2*10 -6/°C | 5.6-6.0 | 5.0-7.0 | 5.5-6.0 |
Specific heat | J/Kg.K | 800-950 | 800-900 | 800-900 |
Thermal Conductivity | W/mk | 2.5-3.0 | 1.5-2.5 | 1.5-2.5 |
Thermal shock | K | Min 450 | Min 350 | Min 350 |
Soften temperature | °C | 1700 | 1300 | 1300 |
Chemical composition:
Item | Unit | Porous Cordierite | Dense Cordierite | Mullite Heat accumulator | Mullite corundum heat |
SiO2 | % | 46-48 | 46-48 | 27-28 | 29-30 |
Al2O3 | % | 32-34 | 34-37 | 70-71 | 68-69 |
MgO | % | 8.0-8.5 | 7.0-7.5 | ||
K2O+Na2O+CaO | % | 1.2-1.4 | 2.5-2.9 | 0.8-1.2 | 0.7-0.9 |
Fe2O3 | % | ≥1 | 0.7-0.9 | 0.7-0.9 | 0.7-0.9 |
TiO+BaO | % | 0.7-0.75 | 0.3-0.4 |
Item | Unit | Corundum heat accumulator | Oxidation aluminum heat accumulator | Spinel accumulator |
SiO2 | % | 8-10 | 41-43 | 19.5-20.5 |
Al2O3 | % | 88-92 | 50-52 | 58-59 |
MgO | % | 19-20.5 | ||
K2O+Na2O+CaO | % | 0.5-0.6 | 4.5-5.5 | 0.7-0.9 |
Fe2O3 | % | 0.2-0.3 | 0.7-0.9 | 1-0.8 |
TiO+BaO | % | 0.2-0.25 |
Honeycomb ceramic monolith for RTO/RCO/VOC