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Products |
| Honeycomb Ceramic for RTO |
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The advantage of monolithic honeycombs is that they provide the highest possible heat recovery with the lowest possible pressure drop. A defined laminar gas flow prevents blocking, particle adsorption and corrosion attacks. RTO units equipped with honeycomb ceramic heat media are easy and cost-efficient to operate and maintain. They are most reliable and economical solution for thermal oxidizers.
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Type
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Property
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Units
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Cordierite
Porous
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Cordierite
Dense
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Mullite
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Alumina
Porcelain
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Stoneware
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Corundum
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1
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Material Density
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g / cm3
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1.70 -1.90
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> 2.3
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>3.0
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>2.6
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> 2.1
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>2.8
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2
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Bluk Density
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g / cm3
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0.89
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0.90
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--
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1.0
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--
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--
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3
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Specific Surface Area
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m2/g
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0.20 -0.30
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--
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--
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--
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--
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--
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4
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Coefficient of Thermal Expansion(20 -1000)
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10^-6 / k
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< 3.4
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< 5.0
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6.2
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< 6.5
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4 - 6
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4 - 6
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5
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Heat Capacity(20 -1000)
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J / kg.k
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700 - 800
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850 - 1000
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850 -1050
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800 -900
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850 - 910
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1000 - 1300
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6
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Thermal Conductivity(350±25C)
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w / m.k
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1.3 -1.5
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1.5 -2.5
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1.5 - 2.0
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1.5 - 2.0
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--
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1.5 - 2.0
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7
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Resistance to thermal
Shocks (Minimum)
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K
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300
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250
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350
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150
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250
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450
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8*
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Axial crushing strength
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Dry
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Kg / block
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2000
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>=4000
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--
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--
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--
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--
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Immersion
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>=2000
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>=4000
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--
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--
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--
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--
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9
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Water Absorption
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%
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25±5
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1±2
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13
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8
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15
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10
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10
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Maximum Operating Temperature
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C
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1400
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1400
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1600
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1400
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1300
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1600
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Chemical Composition:
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Chemical Composition
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Alumina Porcelain
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High silicon
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Cordierite
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Mullite
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Corundum Honeycomb Ceramic
|
unit
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|
SiO2
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39.63
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60.3
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58.17
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30~35
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24-26
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%
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Al2O3
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53.52
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26.3
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33.44
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60~65
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48-52
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%
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MgO
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3.31
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7.69
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7.00~7.50
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~~~
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4.7
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%
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Fe2O3
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0.61
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1.08
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0.83
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0.50~0.70
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>2.6
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%
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CaO,K2O,Na2O
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<1
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4.23
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<2.0
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0.80~1.20
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3.00~3.50
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%
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TiO.BaO
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1.53
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0.40
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0.36
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~~~
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~~~
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%
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Cr2O3
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~~~
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~~~
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~~~
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~~~
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3-5
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%
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ZrO2
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<0.02
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~~~
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1.76
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~~~
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2
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%
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Specification:
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Type
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Channels&Dimensions(mm)
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Specifications
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English Units
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Metric Units
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Remarks
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MT-1
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25*25
150*150*300
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Width of Channels
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0.193 in
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4.9±0.1 mm
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Also available with any length between 50mm-300mm
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Inner Walls
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0.043 in
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1.0±0.1 mm
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Specific surface area
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164.6 ft2/ ft3
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540 m2/m3
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Free cross section
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67 %
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67 %
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MT-2
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40*40
150*150*300
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Width of Channels
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0.119in
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3.0±0.1 mm
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Also available with any length between 50mm-300mm
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Wall thickness
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0.028 in
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0.7±0.1 mm
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Specific surface area
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251.5 ft2/ ft3
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825 m2/m3
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Free cross section
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64 %
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64 %
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MT-3
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43*43
150*150*300
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Width of Channels
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0.114 in
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2.0±0.1 mm
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Also available with any length between 50mm-300mm
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Wall thickness
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0.020 in
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0.5±0.1 mm
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Specific surface area
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304.9 ft2/ ft3
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1000 m2/m3
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Free cross section
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72 %
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72 %
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MT-4
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50*50
150*150*300
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Width of Channels
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0.095 in
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2.4±0.1 mm
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Also available with any length between 50mm-300mm
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Wall thickness
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0.024 in
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0.6±0.1 mm
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Specific surface area
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306.4 ft2/ ft3
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1050 m2/m3
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Free cross section
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63 %
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63 %
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MT-5
|
60*60
150*150*300
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Width of Channels
|
on request
|
on request
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Also available with any length between 50mm-300mm
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Wall thickness
|
on request
|
on request
|
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Specific surface area
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412.4 ft2/ ft3
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1353 m2/m3
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Free cross section
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72 %
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72 %
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MT-6
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35*35
150*150*300
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Width of Channels
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0.142 in
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3.6±0.1 mm
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Also available with any length between 50mm-300mm
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Wall thickness
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0.020 in
|
0.5±0.1 mm
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Specific surface area
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245.4 ft2/ ft3
|
805 m2/m3
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Free cross section
|
79 %
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79 %
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Available Specification :150*100*100(mm),100*100*100(mm)
Application:
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RTO
* Regenerative thermal oxidisers (RTO)
* Catalytic oxidisers (CO)
* Re NOx processes
* Fixed bed adsorbers
* Bio-systems
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* It is mainly used as heat accumulator in steel works, oil and chemical industry, heat and power plant, metallurgy and so on. It need not coat catalyst.
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