Many utilities are installing wet flue gas desulfurization (FGD) systems to comply with tighter sulfur dioxide regulations. These installations will introduce many utility engineers and other technical personnel to a sometimes complex air pollution control technology. This paper outlines fundamental concepts of wet limestone FGD, particularly in the most common design, spray towers. Topics will include liquid-to-gas ratio, chemistry operating parameters, limestone grinding and classification, materials selection for a rugged environment, byproduct disposal, and scrubber performance monitoring. The paper will also briefly review cutting-edge alternatives to spray towers.
Important Concepts of Wet-Limestone Flue Gas Desulfurization
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Buecker, B. "Important Concepts of Wet-Limestone Flue Gas Desulfurization." Proceedings of the ASME 2008 Power Conference. ASME 2008 Power Conference. Lake Buena Vista, Florida, USA. July 22–24, 2008. pp. 91-98. ASME. https://doi.org/10.1115/POWER2008-60064
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