Flue Gas Cleaning
APTB's flue gas cleaning program supports New Source Performance Standards (NSPS)
regulations development and has fostered the development of technologies that today
are considered industry standards. These include both dry and wet flue gas
desulfurization (FGD) technologies, PM control technologies, and flue gas NO
x
removal. Low-cost retrofit technology and innovative improvements have resulted in
a number of patents, licenses, and Cooperative Research and Development Agreements
(CRADAs) with private industry to develop these new concepts for market. Fine PM
technologies include electrostatic precipitators (ESPs) with optimized charging
and collection (Super ESP) and electrostatically stimulated fabric filtration
(ESFF). Sulfur dioxide (SO
2) technologies include combined spray drying
and ESP (E-SO
x) and calcium silicate duct injection (ADVACATE). Facilities
available to conduct this research include two pilot plants, a pilot ESP, and two
bench-scale mercury absorption reactors.
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