The Evolution of Emissions Control Technologies to Meet Lower Limits
(Room Nile 2)
21 Sep 17
11:00 AM
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12:30 PM
Tracks:
Track D - Power Technologies
Over time emission control technologies have advanced to keep up with the demand for lower emissions requirements on coal-fired power generation systems. This evolution continues to target additional reductions to sulfur dioxide (SO2), nitrogen oxides (NOx), particulate matter (PM) and mercury (Hg) emissions. The primary technologies that have been employed to meet these emissions limits have historically included wet and dry flue gas desulfurization (FGD), electrostatic precipitators (ESP), low NOx combustion systems, and selective catalytic reduction (SCR) systems. This paper will focus on the evolution of these state-of-the-art emissions control systems to meet the increasing demands of lower emissions requirements for coal-fired power plants. The paper will provide information to assist the end user with understanding the historical performance, design, and current operation of wet and dry FGD, SCR, ESP and mercury air quality control systems (AQCS), as well as the factors that will likely affect AQCS equipment design. The paper will also address how the technologies within the system are interrelated and how a holistic systems approach to the design will optimize emissions reduction.