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The G. G. Allen Steam Station scrubber (North Carolina) Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes such as waste incineration, petroleum refineries, cement and lime kilns.
Wet flue gas desulfurization (Wet FGD) has typically been used to capture the pollutants gas. However, this machinery is expensive, hard to maintain and takes a lot of space in power plant. Wet FGD uses lot of water, however only marginal metals like mercury and acid gases such as HCl, HF, SO2 and SO3 can be captured. [13]
Conemaugh Generating Station. The Conemaugh Generating Station is a 1,872 MW baseload coal -powered plant located on 1,750 acres (710 ha), across the Conemaugh River from New Florence in Western Pennsylvania. Track 3 of the Norfolk Southern Pittsburgh line runs next to the power plant. The power plant will close by or before December 31, 2028 ...
Wellman–Lord process. The Wellman–Lord process is a regenerable process to remove sulfur dioxide from flue gas ( flue-gas desulfurization) without creating a throwaway sludge product. In this process, sulfur dioxide from flue gas is absorbed in a sodium sulfite solution in water forming sodium bisulfite; other components of flue gas are not ...
The SNOX process is a very energy-efficient way to convert the NOx in the flue gas into nitrogen and the SOx into concentrated sulfuric acid of commercial quality without using any absorbents and without producing waste products or waste water. Along with the flue gases, other sulfurous waste streams from a refinery can be treated, such as H 2 ...
It is common in wet scrubber terminology to express the liquid flow as a function of the gas flow rate that is being treated. This is commonly called the liquid-to-gas ratio (L/G ratio) and uses the units of gallons per 1,000 actual cubic feet or litres per cubic metre (L/m 3). Expressing the amount of liquid used as a ratio enables systems of ...
Flue gas. Flue gas is the gas exiting to the atmosphere via a flue, which is a pipe or channel for conveying exhaust gases, as from a fireplace, oven, furnace, boiler or steam generator. It often refers to the exhaust gas of combustion at power plants. Technology is available to remove pollutants from flue gas at power plants.
Keystone was outfitted with a wet limestone scrubber system in late 2009 to partially remove heavy metals and sulfur dioxide from the emitted flue gas. While the plant has had SCR technology in place since 2003 to reduce emissions of nitrogen oxides, after 2010 operation of this equipment during the ozone season (May – September) was severely ...