Hatc Honeycomb Ceramic Monolith/alumina/cordierite honeycomb ceramic

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1. Introduction of high performance honeycomb ceramics

Ceramic honeycomb could enhance efficiency, say energy , increase output and improve quality, as important and effective measure of dealing with energy and environment. They are applied on thermal equipment of energy saving in industry widely. The shapes of pores of ceramic honeycomb are square and hexagon, and the channels of pores are straight and parallel each other. This structure reduces the resistance of passing air and enhances the heat exchange efficiency of every channel.


Honeycomb ceramics can be divided into four categories according to their uses: regenerator, filler, catalyst carrier and filter material. The specific heat capacity of the honeycomb ceramic regenerator is above 1000J/kgk, and the maximum operating temperature of the product is ≥1700℃. It can save fuel by more than 40% in furnaces such as heating furnaces, roasters, soaking furnaces, and cracking furnaces, and increase the output by 15%. Above, the exhaust flue gas temperature is lower than 150C.

Honeycomb ceramic fillers have the advantages of larger specific surface area and better strength than other shaped fillers, which can make the vapor-liquid distribution more uniform, reduce the bed resistance, have better effect, and prolong the service life. It is used in petrochemical, pharmaceutical and fine chemical industries The effect of medium filling is quite good.


1.Chemical Properties


chemical components
Alumina Oxide Porcelain
Mullit porouse porous
Cordierite dense
Cordierite porous
Quartz Porcelain
SiO2
43,3
28,9
57,2
51,5
66,1
Al2O3
52,0
68,3
25,5
36,4
30,4
MgO
0,1
0,2
7,9
8,5
0,13
Alkali
3,2
1,9
3,1
1,3
2,8


2.Specification of Honeycombs


Dimension
Channels
Channel width
Inner walls
Spec. area
Void fraction
150x150x300 mm
17 x 17
4.2 mm
1.5 mm
485 m²/m³
54%
150x150x300 mm
25 x 25
4.9 mm
1.0 mm
540 m²/m³
67%
150x150x300 mm
40 x 40
3.0 mm
0.7 mm
825 m²/m³
64%
150x150x300 mm
43 x 43
2.95 mm
0.5 mm
1000 m²/m³
70.7%
150x150x300 mm
50 x 50
2.4 mm
0.6 mm
1050 m²/m³
63%
150x150x300 mm
60 x 60
on request
on request
1353 m²/m³
on request


Thermal storage body technical indicators


Name
Alumina
Dense Cordierite
Cordierite
Dense Alumina
Mullite
Corundum mullite
Density(g/cm3)
2.0~2.3
2.1 ~2.5
1.5 ~1.9
2.4 ~2.7
2.0 ~2.5
2.3 ~2.7
Coefficient of heat expansion
(20~800℃)
≤5
≤3.5
≤3.0
≤5
≤5
≤6
Specific Heat (J/Kg.K)
(20~1000℃)
900-1150
900 ~1100
900~1150
1000~1150
1000~1150
1100 ~1300
Thermal Conductivity (W/m.k)
(20~1000℃)
1.5~2.0
1.5~2.5
1.2~1.8
1.5~2.5
1.5~2.0
1.5~2.5
Impact Thermal Resistance(℃/min)
≥300
≥350
≥350
≥300
≥350
≥300
Max. Working Tem.(℃)
1350
1320
1320
1350
1450
1550
water absorption(%)
≤20
≤1
15~25
≤2
15~25
15 ~25
compressive strength
(MPa)
A axis
≥32
≥32
≥29
≥34
≥28
≥39
B axis
≥8
≥8
≥6
≥8
≥8
≥10
chemical composition
(%)
Al2O3
55 ~65
25 ~38
28 ~38
55 ~65
60~70
70 ~80
SiO2
25~35
50 ~60
45 ~55
25 ~35
25 ~35
15 ~25
MgO
1~3
5 ~10
11 ~14
3~5
0 ~1
0 ~2
others
<5
<5
<5
<5
<5
<5


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