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CLIMATE CHANGE – WASTE MINIMISATION IN THERMAL POWER GENERATION
ByDr V S S BHASKARA MURTY
Former Director & Advisor (Env Mgt)NATIONAL PRODUCTIVITY COUNCIL
CHENNAI
January 20. 2012
NATIONAL POWER TRAINING INSTITIUTE, NAGPUR
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V.S.S.Bhaskara Murty M.Tech (Chem Engg)
Former Director & Advisor (Env Mgt) Ambedkar Institute of Productivity
National Productivity Council, Chennai
Advanced Training in
Environmental Protection at W GermanyPedagogic Training at AIT, BangkokEnvironmental Audit and ISO14000
More than 35 Years experience in consultancy and Man Power Training2
ENVIRONMENTAL PROTECTIONPRINCIPLE
VSSB
Law of Thermodynamics ……
ENERGY NEITHER CAN BE CREATED NOR CAN BEDESTROYED. IT CHANGES FROM ONE FORM TO OTHER..
Law of Environmental protection ……
POLLUTION CAN BE CREATED BUT CANNOT BE DESTROYED. POLLUTION CONTROL AT ONE PART ENVIRONMENT MAY CREATE POLLUTION AT ANOTHER PART OF ENVIRONMENT.
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ProductNaturalResources
AirEmissions
LandDischarges
Industrial Process
Air
Water
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THERMAL POWER GENERATION
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MATERIAL BALANCE
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COAL QUALITY – INDIAN & USA
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Supercritical Pressure Coal-Fired Thermal Power Plant
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SO2 – Dry Scrubbing Flow Diagram of CFBC Boiler
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SO2 – Wet Scrubbing
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Super Thermal Power Station – Franken AG, Nürnberg, Germany
Boiler Capacity: 2 x 200 MW
Flue Gas Volume: 15,00,000 M3/hr
Sulfur Dioxide at Inlet: 2,000 – 2,500 mg/M3
Sulfur Dioxide at Outlet: < 200 mg/M3
Sulfur Dioxide Removal :y 90 %
Lime Stone Consumption: 3,500 kg/hr
Gypsum Production: 5,800 kg/hr
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VOLKLINGEN POWER STATION, GERMANY
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CleanFlue Gases
Flue GasDesulfuri -sation Unit
Atmospheric Air Atmospheric Air
Flue Gasesfrom ESP
LimeGypsum
100 m
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SCR Reactor
Heater
Steam
SO2 Converter
Clean Gas
Air
Sulfuric Acid
Combustion Air
Cooling WaterAcid Condenser
Acid Recycle Vessel
WSACondenser
Flue Gas
Bag Filter
Air
Fuel
Start up Burner
Heat Exchanger
Mixer
Air
NH3
Fly Ash
2 NO + 2 NH3 + ½ O2 2 N2 + 3 H2O
2 SO2 + O2 SO3
SO3 + H2O H2SO4
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SNOX Process – Data(Vendsysselvaerket Power Station, Northern Jutland, Denmark)
Boiler Capactiy: 300 MW
Flue Gas Volume: 9,00,000 M3/hr
Coal/Oil Sulfur Content: 0.5% to 2.5%
Desulfurisation Efficiency: 95%
DeNOx: 90%
Clean Gas Particulate
Matter Concentration: <1 mg/M3
Ammonia Consumption: 0.4 T/hr
H2SO4 (95%) Production: 5.2 T/hr
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WA
STE
MIN
IMIS
ATION
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