FGD Chimneys & Liners

FGD chimney refers to a chimney or stack associated with a Flue Gas Desulfurization (FGD) system. FGD is a technology used to remove Sulfur Dioxide (SO2) from the flue gases produced during the combustion of fossil fuels, particularly in power plants and industrial facilities.

When coal, oil, or gas is burned, it releases gases containing harmful pollutants, including Sulfur Dioxide. FGD systems are installed to reduce the emissions of SO2, which is a major contributor to air pollution and cause of acid rain.

The FGD process typically involves passing the hot flue gases through a scrubber, where a chemical reaction takes place to remove the sulfur dioxide from the gas stream. The most common reagent used in the FGD process is limestone or lime and water.

The sulfur dioxide reacts with the alkaline material in the scrubber to form solid calcium sulphite or sulphate, which can be further processed into gypsum.

FGD chimneys now form an essential component of power plants and industrial facilities that have implemented Flue Gas Desulfurization systems to comply with environmental regulations to reduce air pollution. These chimneys play a vital role in maintaining air quality standards and mitigating the harmful effects of sulfur dioxide emissions on the environment and public health.