![2 Major Concerns To reduce Environmental impact of coal energy production ,[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Clean Coal Technologies
- 1. Clean Coal Technologies An Overview 3 February 2010 Arnab Mitra (101532) 1
- 3. Treating flue gas with steam to reduce SO2, CO2 etc.
- 6. Integrated Gasification Combined Cycle (IGCC).
- 9. Low Load Circulation.
- 12. 7 Super Critical - Spiral Wall Tubing
- 13. 8 Water and Steam Flow
- 15. Runs dry during once through mode operation.
- 16. Smaller in size as compared to the drum in sub critical boilers.Air and Incondensable gases Dry Steam Water + Steam Moisture
- 17. 10 Super Critical - Sliding Pressure Operation
- 18. 11 Super Critical - Plant Cycle
- 19. 12 Thermal Efficiency Improvements % ɳ 4.5 600 / 600OC 3.3 566 / 593OC 2.3 566 / 566OC 1.5 538 / 566OC 538 / 538OC 0.7 BASE 538 / 538OC 169 246 310 Steam Pressure (kg/cm2).
- 20. 13 Super Critical - Improved Efficiency
- 21. 14 Technology Adoption Status
- 24. Ash production.
- 25. CO2
- 26. SO2
- 28. SO2 - 365 tonnes
- 30. Startup time is lesser.
- 32. Better control of Feed water quality required.
- 35. Removes impurities from coal gas before combustion.
- 36. Lower emissions of SO2, particulates and mercury.
- 37. Good efficiency: ~ 48 %X High prohibitive cost.
- 38. 19 Magneto Hydro Dynamics (MHD) Technology
- 39. 20 Magneto Hydro Dynamics (MHD) - Open Cycle
- 40. 21 Magneto Hydro Dynamics (MHD) - Generator
- 41. 22 Magneto Hydro Dynamics (MHD) - Brayton Cycle
- 43. Hot Exhausts can be used in a combined cycle (ɳ ~ 60 %).
- 44. Power α Velocity2.