heat transfer media

The honeycomb ceramic can be used as the heat exchange media,which is a new-developing industrial ceramic,honeycomb ceramic heataccumulation substrate has low heat expansion coefficient, largesurface area, good heat stability and anticorrosion. Such productsare widely applied in rubbish incinerator, industrial waster gasdisposal and high temperature storage and exchange for metallurgy,chemical and construction material industries.Typicalapplications:high temperature heat accumulation and exchange inindustrial waste gas treatment for metallurgical,chemical andconstruction material industries

1.Nox purification system in the smoke of the thermal powerplant;
2.The harmful gas purification system in rubbish burning;
3.Poison gas purification system in chemical and mining industries.The slag filter for casting production in the metallurgicalindustry, The catalyst substrate,Stuffing material for chemicalindustry columns and Contact combustionThe honeycomb ceramic asheat exchange media is the major part for HTAC( High TemperatureAtmosphere Combustion) technology in industrial kiln. Theadvantages for using honeycomb ceramic as heat exchange media arefor HTAC technology as below: 1.Low thermal value blastfurnace coal gas can be used 2.More than 40% energy can besaved 3.More than 50% polluted materials in released smoke canbe reduced.The material for heat exchange media honeycomb ceramiccan be cordierite, mullite ceramic, alumina, aluminum titanate etc.Customer can choose the suitable materials according to itsapplication. 1.chemical composition:

Composition	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
SiO2	42.8	27.8	47.8	47.9	70.2
AI2O3	50.5	70.1	35.1	33.7	19.4
MgO	-	-	8.5-9.5	12-13	0.18
Fe2O3	0.5	0.8	0.78	1.0	0.5
Na O2 K o2 Ca O	4.8	1.0	2-2.5	1.03	3.3
TiO2 BaO	-	-	0.39	0.78	0.25
High Aluminum	Al2O3>90%	Al2O3>90%	High Silicon	SiO2>98%	SiO2>98%

 2.Speciality & Sizes:

Quantity of Channels	Channel density (cm2)	Width of channel (mm)	Specific surfacearea(m2/m3)	Hole fraction (%)
5x5	1	26.3	117	77
13x13	5(1)	9.2	278	64
20x20	11(2)	6.4	455	73
25x25	18(3)	4.9	540	67
40x40	46(7)	3.0	825	65
50x50	72(11)	2.3	1005	57

 3.Physics performance:

Performance	Units	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
Density	g/cm3	2.7	2.1	2.47	1.9	2.3-2.4
The hot coefficient of expansion 20-1000	10-6/K-1	5-6	4.5-5	2-2.5	1.5-1.8	4-7
Heat capacity 20-1000	J/kgk	800-900	850-1050	800-1200	750-800	840-920
Heat resisting assaulting	k	150	350	250	300	250
The highest using temperature		1400	1600	1300	1200	1100

heat transfer media

heat transfer media