Flue gas
desulfurization (FGD) is the current state-of-the art
technology used for removing sulfur dioxide (SO2)
from the exhaust flue gases in power plants that burn
coal or oil to produce steam for the steam turbines that
drive their electricity generators.
Sulfur dioxide is responsible for acid rain formation. Tall flue gas stacks disperse the emissions by diluting the pollutants in ambient air and transporting them to other regions.



