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EVALUATION OF PHYSICAL/CHEMICAL COAL CLEANING AND FLUE GAS DESULFURIZATION
Citation:
Tarkington, T., F. Kennedy, AND J. Patterson. EVALUATION OF PHYSICAL/CHEMICAL COAL CLEANING AND FLUE GAS DESULFURIZATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/250 (NTIS PB80147622), 1979.
Description:
The report gives results of evaluations of physical coal cleaning (PCC), chemical coal cleaning (CCC), and coal cleaning combined with flue gas desulfurization (FGD). It includes process descriptions, cleaning performances, comparative capital investments, and annual revenue requirements when four coals (with sulfur levels of 0.7% to 5.0%) are cleaned by each of seven conceptual coal cleaning processes. In the three commercial-type PCC processes, coal is treated in dense-medium equipment and by froth flotation or concentrating table. The three CCC processes are KVB, TRW Gravichem, and Kennecott. The seventh process combines PCC and CCC. Economics are provided also for three coal cleaning/FGD combinations to meet the pre-1978 1.2 lb SO2/MBtu NSPS and the 85% SO2 reduction NSPS proposed in September 1978. All processes are compared on a 2000-MW power generation basis.