Coal-fired power stations

Coal-fired power stations

Coal-fired power stations are thermal power plants that use lignite or hard coal as a fuel to generate electricity. Flue gas dedusting and desulphurisation are mandatory for power stations fired with lignite or hard coal.

Smaller power stations may to some degree dispense with exhaust gas desulphurisation and need only dedust their flue gases. In larger plants, the flue gas is desulphurised by adding limestone or dolomite directly into the combustion zone (in fluidised bed combustion) or  by adding hydrated lime in a dry or semi-dry state up-stream the baghouse.

Case History: Coal-fired power stations
Referencecombined heat and power plant
Firingfluidised bed
Fuelhard coal
Flue gas cleaningdirect desulphurisation
Sorbentlimestone
Flua gas temperature130 - 170 °C
Gas volume flow250.000 m³/h
Filter area3.870 m²
A/C ratio1,06 m/min
Emission< 30 mg/Nm³
Filter mediaPPS/PTFE PROGRESS

KAYSER FILTERTECH GmbH