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EVALUATION OF A BENCH-SCALE DRY FLUE GAS DESULFURIZATION SYSTEM FOR SCREENING POTENTIAL REAGENTS AND OPERATING CONDITIONS
Citation:
Rohlack, L., G. Blythe, T. Brna, AND R. Rhudy. EVALUATION OF A BENCH-SCALE DRY FLUE GAS DESULFURIZATION SYSTEM FOR SCREENING POTENTIAL REAGENTS AND OPERATING CONDITIONS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-86/042 (NTIS PB86160041), 1986.
Description:
The paper discusses two series of bench-scale dry flue gas desulfurization (FGD) laboratory tests, the primary objective of which was to evaluate the ability of a bench-scale dry FGD system to screen potential reagents and operating conditions in support of testing at larger pilot plant or full-scale systems. The first series consisted of once-through and recycle tests with hydrated lime reagent using a laboratory spray dryer/fabric filter system rated at 0.024 cu m/s. These tests duplicated conditions in similar tests with the 2.5 MW spray dryer/fabric filter pilot plant at the EPRI Arapahoe Test Facility. In the second series, the bench-scale spray dryer/fabric filter system was modified to permit the dry injection of reagents upstream of the baghouse. The series was designed to simulate dry sorbent injection. Several sodium bicarbonate reagents and a calcium-based reagent were tested. Test results and the feasibility of using the bench-scale system for screening sorbents and operating conditions are discussed.