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Chementator: This end-of-pipe process treats all fluegas pollutants…

By Chemical Engineering |

This month, the first field tests will be conducted on a pilot plant, developed by WOW Energy, Inc. (Sugar Land, Tex.; edlinks.chemengonline.com/5825-534), to remove mercury, oxides of sulfur (SOx) and nitrogen (NOx), particulates, heavy metals and volatile organic compounds (VOCs) from the fluegas (FG) of power plants and other industrial facilities. The 2,500-ft3/min pilot unit, constructed with a $1.6-million grant from the Texas Commission on Environmental Quality (Austin), is mounted on a flatbed trailer for transporting to individual sites for testing with different fluegases. Initial tests are planned for AES Corp.’s (Arlington, Va.) Deepwater 160-MW coke-fired cogeneration plant in Pasadena and the Twin Oaks 300-MW lignite-fired power plant located between Waco and College Station (both Texas). Conventional FG treatment is normally performed at elevated temperatures to avoid the condensation of corrosive acids, and also because NOx treatment plants, such as some selective-catalytic-reduction (SCR) ones, require high (600–700°F) temperatures to operate, says president and CEO Daniel Stinger. The Final FG Cleanning (FFGC) system takes advantage of the condensation of some pollutants by either quenching the FG,…
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