Flue Gas Desulfurization
 Flue gas desulfurization (FGD) involves the removal of sulfur dioxide (SO2) contained in gases produced by the combustion of fossil fuels such as coal, oil, orimulsion, municipal solid waste, automobile tires and many industrial processes such as gasoline refining, cement, paper, glass, steel, iron, and copper production. Sulfur dioxide emissions are a primary contributor to acid rain and have been regulated by every industrialized nation in the world.
Hamon FGD systems have been efficiently addressing each of these needs since the widespread installation of FGD technologies beginning in the 1970s. World wide, Hamon FGD installations are treating over 65,000 MWs of power generation capacity in twenty countries and on many more industrial class applications. Hamon FGD technologies include the latest state-of-the-art designs to remove these polluting emissions at the lowest cost. Each application for SO2 reduction must consider the initial capital cost of equipment along with the long-term operational expenses associated with power, reagent and energy consumption along with maintenance and space considerations. Hamon Flue Gas offers dry (DFGD) processes for low to medium sulfur coal fired utilities and municipal waste combustion and combined wet SO2 and particulate scrubbers (WGS) for petrochemical refineries. Each has special application benefits and performance capabilities. The DFGD process introduces finely atomized droplets of reagent slurries, which absorb and neutralize the SO2 and then evaporate to produce a dry particulate reaction product. Consequently, the DFGD process generates a simpler to handle waste product and uses a downstream fabric filter for particulate control. Hamon Research-Cottrell, under license from Exxon Mobil, provides Wet Gas Scrubber (WGS) technology for refineries, for combined particulate and SO2 control from FCCU and CO boilers. As its acronym implies, the WGS process accomplishes SO2 capture in a totally saturated gas environment where the untreated gas passes through a venturi absorber which captures particulate while SO2 is absorbed and neutralized in the recirculating liquid slurries. After the desulfurization stage, the saturated gas is demisted to remove water droplets and directed to the stack discharge.
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