Round 1 CCPI Projects

Early demonstrations of CCPI will emphasize advanced technologies that are applicable to existing power plants but will also include construction of new, advanced, clean coal power plants. Figure 7-8 shows the locations of the seven projects selected and the amount of funding, both DOE and private sector, for each project. Two of the projects are directed at new ways to comply with the Clear Skies Initiative, which calls for dramatic reductions in air pollutants from power plants over the next 15 years [60]. Three projects are expected to contribute to the Climate Change Initiative to reduce greenhouse gases. The final two projects will use abundant waste materials that resulted from earlier coal mining activities while reducing air pollution through coal gasification and multipollutant control systems. Brief descriptions of the technologies being demonstrated in each project are provided here.

New Technologies for Clear Skies Initiative

Wisconsin Electric Power Company will design, install, operate, and evaluate the TOXECON process as an integrated emissions control system for mercury, particulate matter, SO2, andNOz [3,62]. ATOXECONunit, shown schematically in Figure 7-9 [3], will be installed on the combined flue gas of Wisconsin Electric Power Company's Presque Isle Power Plant Units 7, 8, and 9 for a total of 270 MW. TOXECON represents an option for greater than 80% mercury control for coal-fired power plants, may be the primary mercury control option for western coals, and may be the only choice for units with hot-side ESPs [62]. The TOXECON configuration allows for separate treatment or disposal of the fly ash collected in the primary particulate control device. Powdered activated carbon will be injected for mercury control, and sodium-based additives will be injected for reducing SO2 and NOx emissions.

Colorado Springs Utilities (CSU) and Foster Wheeler are demonstrating an advanced coal-fired power plant that will have unprecedented low emissions levels using advanced low-cost emission control systems [3,62]. Fully integrated, multilayered emission controls are being combined with CFB combustion to produce what is expected to be the cleanest coal-fired unit in the world while maintaining cost competitiveness and high unit reliability. Control of NOx will be performed using an advanced staged-combustion process coupled with an advanced SNCR system. Sulfur dioxide removal of 96 to 98% is expected using a three-stage approach, and an integrated trace metal control system will remove up to 90% of the mercury, lead, and other metals, as well as virtually all acid gases. The demonstration will be performed at full scale using a 150 MW unit at the CSU Ray D. Nixon Power Plant located near Colorado Springs.

New Technologies to Meet Climate Change Goals

Great River Energy will demonstrate a process for reducing the moisture content of lignite, thereby increasing the value of high-moisture fuels in

FIGURE 7-8. Clean Coal Power Initiative Round 1 projects. (From Sarkus, T. A., Clean Coal Power Initiative: Tackling Coal's Environmental Challenges, presentation to the National Coal Council,, December 4, 2003.)

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