flue gas desulfurization in power plants
The main purpose of desulphurization is to remove sulfur dioxide (SO2) content in the combustion gas which emanates from burning of fossil fuel. Functions of FGD systems include air pollution control, compliance with environmental regulations, and production of useable by-products. The technology of these systems involves lime or limestone scrubbing. But whatever it is, a slurry of absorbent reacts with SO2 to form solid compounds, which are easy to remove. For the coal-fired power plant, this operation is the key to minimizing emissions of harmful gases. Applications of FGD are widespread in coal-fired power plants and other industrial facilities where sulfur emissions are a concern.