Honeycomb monoliths
Product Description
High surface area, large heat capacity, low thermal expansion, resistant to corrosion and high temperature, ceramic honeycomb monoliths have been well used in chemical, metallurgical, gas and environmental protection industries. The main usage is as follows:
*Tower packings–With high surface area, even distribution of fluid and, efficient in mixture separation in chemical & petrochemical industries.
*Catalyst carriers–Reduce the oxidation temperature of VOC in purification of industrial exhaust gases in RCO systems and automobiles.
*Regenerative heat step-up transformer–Large heat capacity, low resistance to fluid and energy saving up to 40-70% in RTO systems.
*Gas combustion distributor–Distribute the heat uniformly, and make the combustion completely. It can save energy more than 10%.
*Kiln furniture in refractory industries–Low bulk density and high thermal efficiency.
Physical & Chemical Properties of Honeycomb Monoliths
| Type Item | Alumina | Mullite | Dense Cordierite | Porous Cordierite | Mullite-Cordierity | Stoneware | |
Chemical composition ％ | Al2O3 | 48-55 | 66-72 | 32-36 | 32-37 | 55-65 | 20-26 |
| SiO2 | 40-45 | 25-30 | 45-52 | 46-52 | 28-36 | 68-75 | |
| MgO | 5-8 | 8-12 | 2.5-3.2 | 0.2-0.3 | |||
| K2O+Na2O+CaO | 4.0-5.5 | ≤1.0 | ≤3.0 | ≤2.0 | ≤1.0 | 2.5-4.0 | |
| Density，g/cm3 | 2.7 | 2.9 | 2.4-2.6 | 1.9-2.0 | 2.9-3.2 | 2.3-2.5 | |
| Coefficient of thermal expansion (20-1000℃),×10-6·℃ | 5-7 | 5.5-6.5 | 2.5-3.5 | 1.3-2.5 | 2.5-4.0 | 5-7 | |
| Heat capacity (20-1000℃),j/kg·℃ | 800-900 | 1100-1300 | 800-1200 | 750-900 | 850-1100 | 840-920 | |
| Thermal conductivity (20-1000℃)W/m·℃ | 1.5-2.5 | 1.5-2.0 | 1.5-2.58 | 1.3-1.5 | 1.5-2.3 | 1.0-1.2 | |
| Spalling resistance，℃ | ≥150 | ≥350 | ≥250 | ≥360 | ≥250 | ≥150 | |
| Max Working temp.℃ | 1300 | 1600 | 1300 | 1300 | 1400 | 1300 |
Type and Size of the Product
| Type Item | 1 | 2 | 3 | 4 | 5 | 6 |
| Number of channels | 5×5 | 13×13 | 20×20 | 25×25 | 40×40 | 50×50 |
| Channel density，cm-2 | 0.15 | 1 | 2 | 3 | 7 | 11 |
| Width of channel，mm | 26.3 | 9.2 | 6.4 | 4.9 | 3.0 | 2.3 |
| Thickness of wall，mm | 2 | 1.5 | 1.2 | 1.0 | 0.7 | 0.7 |
| Surface area，m2/m3 | 117 | 278 | 455 | 540 | 825 | 1005 |
| Free cross-section，% | 77 | 74 | 73 | 67 | 65 | 57 |
| Size，mm | Standard sizes：150×150×600/450/300/150/100/50 Others：100×100×100/40 |