Chapter 5
Emission Reduction Systems (Dust, SO2, NOX)


Any energy conversion has an inevitable effect on the environment. When fossil fuels are burned in power plants, discharge of pollutants becomes an issue. Whereas in the 1920s a heavily smoking power plant stack was an indication of prosperity, today the discharge of any combustion products, particularly from coal-fired power plants, must be minimized. for this task, emission-reduction measures and systems have been developed and introduced:

• Dust-removal systems (1940s)

• Desulfurization systems (1970s)

• Nitrogen oxide reduction systems (1980s)

  • Dust Removal Systems[23]
  • Desulfurization Systems[24]
  • Selective Catalytic Reduction (SCR) Systems for NOX Removal[26]

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