Document Type:Technical Results
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The Electric Power Research Institute (EPRI) is collecting information describing the effects of air emissions controls on coal combustion products (CCPs) as they pertain to disposal and use. Specifically, data are being collected to assess the impacts of calcium bromide (CaBr2) addition to coal, refined coal, halogen injection in the boiler, brominated activated carbon injection (BrACI) in the flue gas, dry sorbent injection (DSI) in the flue gas, and flue gas desulfurization (FGD) additives such as dibasic acid (DBA).
Two primary sources of CCP data are being used for this research: EPRI-generated data
and power company-generated data. EPRI data are based on testing of fly ash samples from several emissions control tests at power plant sites. These samples were subject to a detailed suite of composition and leaching analyses. Data from the most recent tests, focused on DSI impacts on fly ash, are included in this interim report. The final report will include all of the EPRI test results. Power company data include CCP characterization tests performed while the companies were evaluating various emissions controls. This source represents less detailed data on a much broader cross-section of samples and control technologies.
This interim report provides a summary of the data compiled to date from both sources, and a preliminary assessment of some of the EPRI data. The final report will update the dataset with any new data collected, provide a more detailed assessment of the potential impacts of various emissions controls on CCP disposal and use, and identify future research needs.
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