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Products
Honeycomb Ceramic for RTO

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.

Type

Property

Units

Cordierite
 Porous

Cordierite
Dense

Mullite

Alumina
Porcelain

Stoneware

Corundum

1

Material Density

g / cm3

1.70 -1.90

> 2.3

>3.0

>2.6

> 2.1

>2.8

2

Bluk Density

g / cm3

0.89

0.90

--

1.0

--

--

3

Specific Surface Area

m2/g

0.20 -0.30

--

--

--

--

--

4

Coefficient of Thermal Expansion(20 -1000)

10^-6 / k

< 3.4

< 5.0

6.2

< 6.5

4 - 6

4 - 6

5

Heat Capacity(20 -1000)

J / kg.k

700 - 800

850 - 1000

850 -1050

800 -900

850 - 910

1000 - 1300

6

Thermal Conductivity(350¡À25C)

w / m.k

1.3 -1.5

1.5 -2.5

1.5 - 2.0

1.5 - 2.0

--

1.5 - 2.0

7

Resistance to thermal
Shocks (Minimum)

K

300

250

350

150

250

450

8*

Axial crushing strength

Dry

Kg / block

2000

>=4000

--

--

--

--

Immersion

>=2000

>=4000

--

--

--

--

9

Water Absorption

%

25¡À5

1¡À2

13

8

15

10

10

Maximum Operating Temperature

C

1400

1400

1600

1400

1300

1600

Chemical Composition:

Chemical Composition

Alumina Porcelain

High silicon

Cordierite

Mullite

Corundum Honeycomb Ceramic

unit

SiO2

39.63

60.3

58.17

30~35

24-26

%

Al2O3

53.52

26.3

33.44

60~65

48-52

%

MgO

3.31

7.69

7.00~7.50

~~~

4.7

%

Fe2O3

0.61

1.08

0.83

0.50~0.70

>2.6

%

CaO,K2O,Na2O

<1

4.23

<2.0

0.80~1.20

3.00~3.50

%

TiO.BaO

1.53

0.40

0.36

~~~

~~~

%

Cr2O3

~~~

~~~

~~~

~~~

3-5

%

ZrO2

<0.02

~~~

1.76

~~~

2

%

Specification:

Type

Channels&Dimensions(mm)

Specifications

English Units

Metric Units

Remarks

MT-1

25*25

150*150*300

Width of Channels

0.193 in

4.9¡À0.1 mm

Also available with any length between 50mm-300mm

Inner Walls

0.043 in

1.0¡À0.1 mm

Specific surface area

164.6 ft2/ ft3

540 m2/m3

Free cross section

67 %

67 %

MT-2

40*40

150*150*300

Width of Channels

0.119in

3.0¡À0.1 mm

Also available with any length between 50mm-300mm

Wall thickness

0.028 in

0.7¡À0.1 mm

Specific surface area

251.5 ft2/ ft3

825 m2/m3

Free cross section

64 %

64 %

MT-3

43*43

150*150*300

Width of Channels

0.114 in

2.0¡À0.1 mm

Also available with any length between 50mm-300mm

Wall thickness

0.020 in

0.5¡À0.1 mm

Specific surface area

304.9 ft2/ ft3

1000 m2/m3

Free cross section

72 %

72 %

MT-4

50*50

150*150*300

Width of Channels

0.095 in

2.4¡À0.1 mm

Also available with any length between 50mm-300mm

Wall thickness

0.024 in

0.6¡À0.1 mm

Specific surface area

306.4 ft2/ ft3

1050 m2/m3

Free cross section

63 %

63 %

MT-5

60*60

150*150*300

Width of Channels

on request

on request

Also available with any length between 50mm-300mm

Wall thickness

on request

on request

Specific surface area

412.4 ft2/ ft3

1353 m2/m3

Free cross section

72 %

72 %

MT-6

35*35

150*150*300

Width of Channels

0.142 in

3.6¡À0.1 mm

Also available with any length between 50mm-300mm

Wall thickness

0.020 in

0.5¡À0.1 mm

Specific surface area

245.4 ft2/ ft3

805 m2/m3

Free cross section

79 %

79 %

Available Specification :150*100*100(mm),100*100*100(mm)

Application:

RTO
* Regenerative thermal oxidisers (RTO)
* Catalytic oxidisers (CO)
* Re NOx processes
* Fixed bed adsorbers
* Bio-systems

* 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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