AP-­-64 Power Industry Flue Gas Desulphurization (FGD) AP64 12/080611 Application Profile: Lime Slaker Heating for Flue Gas Desulphurization Power companies are faced with increased emission control standards. Essentially they need to reduce emissions that are released through their stacks. One key environmental regulation is to control sulfur dioxide (SO 2 ), Sulfur Trioxide (SO3), and Nitrogen Oxide (NOx) emissions via Flue Gas Desulphurization (FGD). FGD can either be accomplished via Wet FGD Scrubbing or Semi-Dry FGD process. For coal fired power plants, the addition of lime slurry assists the removal of undesirable emissions in flue gas via the FGD process. Limestone slurry is produced by crushing the limestone typically in a bal

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