1. Coal Beneficiation for Clean Coal Technology Dr Kalyan Sen Director Central Fuel Research Institute Dhanbad 828108

2. Figure: Particle Size distribution for Indian coals PSD of Indian Non Coking Coals

5. Indian Coal as feed to TPS Favourable qualities : ` Huge reserve ` Low S content ( <0.6%) ` High AFT (>1100 o C) ` Low Iron content ` Low Chlorine content ` Low toxic trace elements ` Reactive inertinites back

10. DSC/TG of Density Fractions

11. Maximum Rate Vs Ch. Ash

12. DTG Peak Temperature Vs Ch. Ash

15. R & M R & M National Programme STRATEGY FOR ACHIEVING COAL BASED POWER TARGET Improved Coal Quality Improved Coal Quality Mine planning Assessment Cleaning Blending Advance Technology Advance Technology ! Larger Units Larger Units ! CCT CCT

16. Technology Routes for beneficiation LevelScheme Methodology Ash% reducn Cleans (%) M % over ROM coal IDry benefin. Separation of stone/shale based on differential breakage potentiality 3-4>90Nil IICrushing, screening & coarse coal cleaning Coarse coal (13/30mm) washed & mixed with untreated fines; dewatering screens. <1070- 90 2-3% IIICrushing, screening and total cleaning Coarser fraction washed at optimum efficiency levels: fine coal by Spiral: dewatering >10<603-4% back

17. Achievable yield of washed coal by different level of beneficiation 2425262728293031323334353637 Ash, % 60 65 70 75 80 85 90 95 100 Yield of Cleans,% back

18. Thank You