1. A Presentation on Refractory for Thermal Power Plant

2. Roadmap Introduction Challenges to power sector Product range Product data sheet

3. Introduction As we all know, India is a developing country. With the introduction of economic reforms and after being a part of the WTO, India is on the high road of development. Power generation is the backbone of a developing economy. With the rise in industrial production as well as the uplift of life of people, coupled with a sharp rise in the housing sector, India is witnessing an unprecedented growth in the demand for power.

4. Contd. As a consequence to this, power sector is growing and the growth in power sector seems to have come to stay. With this backdrop, refractories for power plants promise to be on an ever-growing demand. PASSARY MINERALS LTD., Rourkela, India, a pioneering company in producing technology-intensive and technologically challenging refractories, offers a basket of refractory products for the Power sector.

5. Refractories for Thermal Power Plants Challenges Refractories for Power Plants are subject to the following challenges: 1. Severe Abrasion Resistance. 2. High level of Corrosion / Sulphur attack. 3. High Thermal Spalling. 4. Carbon Monoxide attack. 5. Alkali attack.

6. PASHEAT K PASHEAT A PASHEAT 95 PAS LC 70SC PAS ULCM 70TA PASULYTE - 11 HIPER

7. Refractories for Thermal Power Plants Product Range with features Our product range for the above include : A.Medium Temperature Dense Castable PASHEAT K : 1.Best at the medium temperature range i.e.1000 – 1300 degC. 2. High Refractoriness. 3.Good against Carbon Monoxide attack.

8. Refractories for Thermal Power Plants B.High Temperature Dense Castable PASHEAT A : 1. Best at the higher temperature range i.e.1300 – 1600 degC. 2. High spalling resistance. 3. High refractoriness. 4. Good abrasion resistance. 5. Strong against sulphur attack.

9. Refractories for Thermal Power Plants C.High Purity High Temperature Dense Castable PASHEAT 95 : 1.Best at the higher temperature range i.e.1600 degC + range. 2.Very High Refractoriness. 3.Very High Abrasion Resistance. 4.Very High Spalling Resistance. 5.Exceptionally strong against sulphur attack.

10. Refractories for Thermal Power Plants D.Ultra Low Cement Tabular Alumina containing castables PAS ULCM 70TA : 1. High Spalling Resistance. 2. Consistently High strength at all temperatures. 3. High Abrasion Resistance. 4. Good against Corrosion.

11. Refractories for Thermal Power Plants E.Silicon Carbide containing Low Cement Castable PAS LC 70SC : 1. Very High Corrosion Resistance. 2. High resistance against Alkali attack. 3. Very high Abrasion Resistance. 4. Good Spalling Resistance. 5. High Refractoriness.

12. Refractories for Thermal Power Plants F. High Performance Insulating Castable PASULYTE – 11HiPer : 1. Specially designed for Power Generation / Hydrocarbon sector. 2. High thermal stability. 3. High Insulating property.

14. PASHEAT K DESCRIPTION PASHEAT ‘K’ Base ComponentCal-Diaspore Physical Properties Recommended Service Temp. o C ( max ) 1600 Refractoriness 0 C ( Min ) / Orton (min)1683 / 31 Linear Change % in 0 C / 3hrs ( max )  1.5 1550 Thermal Conductivity kcal/m/hr/ 0 C at 400 0 CHF at 600 0 CHF at 800 0 CHF 0.82 0.84 0.86 Dry Density ( gm/cc ) after drying at 110 0 C Cold Crushing Strength (kg/cm2) after drying at 110 0 C / 24 hrs. 2.2 350 Reversible Thermal Expansion at 1000 0 C (%) Maximum Grain Size (mm) 0.58 5 Chemical Analysis Al 2 O 3 (%) Min60 Fe 2 O 3 (%) Max<1.5

15. PASHEAT A DESCRIPTION PASHEAT ‘A’ Base ComponentBTA Physical Properties Recommended Service Temp. o C ( max )1750 Refractoriness 0 C ( Min ) / Orton (min)1820 / 37 Linear Change % in 1500 0 C / 3hrs ( max )  1.0 Thermal Conductivity kcal/m/hr/ 0 C at 400 0 CHF at 600 0 CHF at 800 0 CHF 1.12 1.20 1.28 Dry Density ( gm/cc ) after drying at 110 0 C Cold Crushing Strength (kg/cm2) at 110 0 C / 24 hrs. 2.75 600 Reversible Thermal Expansion at 1000 0 C (%) Maximum Grain Size (mm) 0.78 5 Chemical Analysis Al 2 O 3 (%) Min90 Fe 2 O 3 (%) Max<1.0

16. PASHEAT 95 DESCRIPTIONPASHEAT 95 Base ComponentWhite Tabular and White Fused Alumina Physical Properties Recommended Service Temp. o C ( max )1850 Refractoriness 0 C ( Min ) / Orton (min)1900 / 40 Dry Density ( gm/cc ) after drying at 110 0 C (min) Cold Crushing Strength (kg/cm2) at 110 0 C at 1000 0 C 2.90 700 PLC (%) max. after heating at 1100 0 C/2hrs. at 1550 0 C/3hrs. Maximum Grain Size (mm) +/-0.3 +/-0.5 5, 8 depending on customer’s requirement Water of Casting6.0—6.5 % Chemical Analysis Al 2 O 3 (%) Min95 Fe 2 O 3 (%) Max0.3

17. PAS ULCM 70TA DESCRIPTION PAS ULCM 70TA Base ComponentSintered Mullite & Tabular Alumina Physical Properties Refractoriness o C 37 1820 Maximum Service Temperature 0 C1750 Dry Density (gm/cc) after drying at 110 0 C 2.60 Cold Crushing Strength (Kg/cm2) after drying at 110 0 C/24 Hrs at 800 0 C/3 Hrs at 1100 0 C/3 Hr 500 850 1100 P. L. C % (max) after heating at 1100 0 C min  0.2 % Water Required for Casting 4.7 – 5.3 Maximum Grain Size (mm) 0 – 5 Chemical Analysis Al 2 O 3 (%) Min70.00 Fe 2 O 3 (%) Max1.2

18. PAS LC 70SC DESCRIPTION PAS LC 70SC Base Component Corundum with Silicon Carbide Refractoriness o C 37 1820 Maximum Service Temperature 0 C1750 Dry Density (gm/cc) after drying at 110 0 C 2.60 Cold Crushing Strength (Kg/cm2) after drying at 110 0 C/24 Hrs at 800 0 C/3 Hrs at 1100 0 C/3 Hr 750 850 1000 Modulus of Rupture (Kg/cm2), Min.120 P. L. C % (max) after heating at 1100 0 C min  0.2 % Water Required for Casting 5.0 – 5.5 Maximum Grain Size (mm) 0 – 5 Apparent Porosity (ASTM C20) 16% Max. Panel Spalling Resistance, 1650°C 4.0 Max. Al 2 O 3 (%) Min50.0 SiC (%) Min20.0 Fe 2 O 3 (%) Max1.2

19. PASULYTE – 11 HiPer DESCRIPTION PASULYTE – 11 HiPer Base ComponentInsulating Aggregate Recommended Service Temp. 0 C1275 Maximum Grain Size (mm)6 Water Required for Casting 35 – 45 % Thermal Conductivity (W/m-K ) At 260 0 C At 550 0 C At 820 0 C At 1100 0 C 0.20 0.25 0.27 0.30 Bulk Density, gms/cc. At 820 0 C Service Temperature 1.05 max. Cold Crushing Strength (kg/cm 2 ) At 110 0 C/ 24 Hrs At 820 0 C/ 5 Hrs. Service Temperature/ 5 Hrs. 30 min. Modulus of Rupture (kg/cm 2 ) At 110 0 C/ 24 Hrs At 820 0 C/ 5 Hrs. Service Temperature/ 5 Hrs. 8 min. 10 min. Al 2 O 3 (%) Min40.0 Fe 2 O 3 (%) Max0.9

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