Alumina/Cordierite/Mullite/Corundum 150X150X300mm Honeycomb Ceramic Monolith for Rto and Rco

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Refractory Material
• Shape: Brick
• Material: Mullite
• Transport Package: Wooden Box
• Model NO.: OB-HCR
• Specification: Customized
• Trademark: OBBO
• Origin: China
• HS Code: 8708920000

Product Description

Product Description

> Honeycomb Ceramics 

Honeycomb ceramic heat recovery media is a key component of regenerative burner, which is widely used in iron and steel, machinery, building materials, petrochemicals, nonferrous metal smelting and other industries, furnace, hot air furnace, heat treatment furnace, cracking furnace, baking, melting furnace, both in the hot furnace, oil and gas boilers, and furnaces. The technique is to make two ceramic media beds alternating endothermic exothermic by reversing device. Most common applications include: RTO, (RCO), metal casting combustor, metal melting industrial furnace, etc.

Compared with other ceramic media which have conventionally been used in RTOs. The advantages of honeycomb monolith include a greater thermal efficiency and a lower pressure drop across the heat exchanger bed. The increase in thermal efficiency and lower pressure drop generally results in smaller equipment design, lower capital cost and lower operating cost. Honeycomb ceramic serves as a more efficient alternative for the following reasons: cutting fan load for significant energy saving (low pressure drop owing to straight channels), less volume, thin wall thickness, faster in thermal exchange. Lighter weight, so less structural support is required. Above all, High specific surface area means high conversion efficiency in converters occupying small volumes. All these benefit, especially larger specific surface area make honeycomb ceramic the better performance media across industries.

> Materials

Alumina Ceramics
Alumina Ceramics is the most widely used advanced ceramic material. Owing to its highly strong ionic inter-atomic bonding, alumina offers good performance in terms of chemical and thermal stability, relatively good strength, thermal and electrical insulation characteristics at a reasonable price. With a range of purities and also the relatively low cost in raw material production it is possible to utilize alumina for wide ranging applications across a variety of different industries.

Mullite Ceramics Alumina 
Mullite occurs very rarely in nature because it only forms at high temperature, low pressure conditions, so as an industrial mineral, mullite has to be supplied by synthetic alternatives. Mullite is a strong candidate material for advanced ceramics in industrial process for its favourable thermal and mechanica properties: low thermal expansion, low thermal conductivity, excellent creep resistance, suitable high temperature strength and outstanding stability under harsh chemical environments.

Dense Alumina & Dense Cordierite
Low water absorbtion (0-5%)
High density, High heat capacity
Large specific surface area, greater thermal efficiency
Strong anti-acid, anti-silicon, anti-salt. Low block rate

Silicon Carbide Ceramics
Silicon carbide is notable for its hardness, high melting-point and high thermal conductivity. It can retains its strength at temperature as high as 1400 °C and offers excellent wear resistance and thermal shock resistance. It has well-established and wide-spread industrial applications as catalyst supports and hot-gas or molten metal filters because of its low thermal-expansion coefficient and good thermal-shock resistance as well as excellent mechanical and chemical stability at elevated temperature environments.

Cordierite Ceramics
Cordierite has a superior thermal shock resistance due to their intrinsic low coefficient of thermal expansion (CET), coupled with relatively high refractoriness and high chemical stability. Therefore, it is often used as high temperature industrial applications, such as: heat exchangers for gas turbine engines; honeycomb-shaped catalyst carriers in automobile exhaust system.


Corundum Ceramics 
1, high purity: Al2O3> 99%, good chemical resistance
2, temperature resistance, long-term use at 1600 °C, 1800 °C short-term
3, thermal shock resistance and good resistance to crack
4, slip casting, high density, high purity alumina


Material:
Corundum mullite, mullite Cordierite, Cordierite, mullite, zirconium mullite, silicon carbide composite, etc

Shape:
Square, rectangle, circle, triangle, hexagonal hole, etc

Product Parameters

  

RTO/RCO honeycomb ceramics Main Size:

L*W*G(mm)	150x 150 x 300(150)
Number of Cell	25x25=625	40x40= 1600	43x43=1849	50x50=2500	60x60=3600
Width of Cell(mm)	4.95	3.02	2.81	2.38	1.98
Thickness of inner wall(mm)	1.0	0.7	0.65	0.6	0.5
Surface Area(m2/m3)	577	886	950	1084	1294
Opening Ratio(%)	68	65	65	63	63

RTO/RCO honeycomb ceramics Physical Properties:

Item	Aluminum Porceian-cordierite	Dense aluminum porcelain	Cordierite	Mullite-Cordierite	Mullite	Enamel
Density(g/cm3)	2.0~2.3	2.4~2.6	1.6~1.9	1.7~2.0	2.0~2.4	1.7~2.0
Bulk density (g/cm3)	0.65~0.8	0.65~0.8	0.6~0.7	0.65~0.75	0.65~0.8	0.65~0.75
Thermal Expansion Coefficient (X10-6°C-1) (RT-800°C)	≤6	≤6	≤3	≤3.5	≤5.5	≤6.5
Specific heat capacity (J/Kg.k)	950~1150	1000~1200	900~1100	900~1100	1000~1150	900~1100
Thermal Conductivity (w/m.k)(20-1000°C)	1.5~2.0	1.5~2.0	1.2~1.8	1.4~1.9	1.5~2.0	1.4~1.9
Thermal shock resistance Max Temperature(ºC)	≥400	≥300	≥450	≥350	≥350	≥300
Advised Max Temperature(ºC)	1250	1350	1150	1250	1450	1200
Water Absorption Rate(%)	≤20	≤5	≤22	≤20	≤20	≤10

RTO/RCO honeycomb ceramics Chemical composition:

Item	Aluminum Porceian-cordierite	Dense aluminum porcelain	Cordierite	Mullite-Cordierite	Mullite	Enamel
SiO2	25~35	25~35	45~55	40~50	25~35	68~72
Al2O3	55~65	55~65	28~38	55~65	55~65	22~26
MgO	2~4	2~4	11~14	5~9	≤2	≤0.5
Fe203+TiO2	1~4	1~4	1~3	1~3	1~4	1~3
Others	≤5	≤5	≤5	≤5	≤5	≤5

 

Hexagonal hole honeycomb ceramics
Size(mm)	Hole diameter(mm)	Wall Thickness(mm)	Heat transfer area(m2/m3)	Opening ratio(%)
150*100*100	3.1	1	673	53
150*100*100	3.1	1.5	625	49
150*100*100	3.5	1	655	58
150*100*100	3.9	1.1	624	58
100*100*100	3.1	1	673	53
100*100*100	3.5	1	655	58
100*100*100	3.9	1.1	624	58

 

 

Our Advantages

 

* Reduce the thermal loss of exhaust gas, and improve the efficiency

* Enhance the theory burning temperature, improve the atmospheric burning, meet the high temperature of thermal equipment,
enlarge the application of low calorific value, especially the application range of blast furnaces, improve the efficiency of
calorific value and reduce the emissions from low calorific value coal gas.

* Improve the terms of heat exchange in hearths, increase the output of equipment, enhance the quality of products and cut down
on reinvesing in equipment.

* Reduce the exhaust emission of thermal equipment, alleviate the air pollution and improve the environment.

 

 

Company Profile

Pingxiang Obbo Environmental Technology Co., Ltd is an industrial ceramic manufacturer and advanced ceramic research company, which is located in Jiangxi Pingxiang Industrial Ceramic Park - the capital of ceramic in China. Obbo environmental is specializing in manufacturing ceramic media and distributing its products over the world.

The main Industrial ceramic media we produce includes: Ceramic Honeycomb carrier, honeycomb ceramic Heat Recovery Media, Catalyst Carrier, ceramic foam filter, three way catalytic converter, as well as ceramic packings and related products. We provide customized solutions for honeycomb ceramic media and our products are widely applied in the industries of chemical, electric power, metallurgy, petroleum, electronics, electrical appliances, machinery, environmental, residential, etc.

With the team of ceramic professionals and senior consultants, Obbo environmental has made significant breakthroughs of high temperature material and high cell density honeycomb ceramics and it will keep pushing the edges.