Flue Gas Desulphurisation
Flue gas desulphurisation (FGD) is a process that involves the removal of sulphur dioxide (SO2) from the flue gases produced during combustion activities such as power generation, industrial processes, and waste incineration. The purpose of FGD is to reduce the amount of SO2 emissions released into the atmosphere, which can cause environmental and health problems such as acid rain, smog, and respiratory illnesses. The most common method of FGD is wet scrubbing, where the flue gases are passed through a scrubbing solution that contains a chemical reactant, typically lime or limestone. The reactant reacts with the SO2 to form a solid precipitate, which can be easily removed from the solution. Other methods of FGD include dry scrubbing, semi-dry scrubbing, and regenerative FGD. FGD has become a vital component of many industries’ efforts to reduce their environmental impact and comply with emissions regulations.