Results from the Phase II testing of the gas suspension absorption flue gas desulfurization technology at the Center for Emissions Research
- Tennessee Valley Authority, Chattanooga, TN (United States); and others
The Tennessee Valley Authority (TVA), in cooperation with AirPol, Inc., and the U.S. Department of Energy (DOE), recently completed a 17-month test program as part of the third round of DOE`s Clean Coal Technology program with the Gas Suspension Absorption (GSA) flue gas desulfurization (FGD) process at TVA`s Center for Emissions Research (CER). Subsequent to this test program, the GSA system was operated for another year by the TVA. The purpose of this additional testing, which was funded by the TVA, was to further evaluate the major process variables at levels that were not tested during the original Clean Coal Technology program. Two of the major process variables that were evaluated further were the coal chloride level and the GSA reactor inlet flue gas temperature. Prior research had indicated that the overall system sulfur dioxide (SO{sub 2}) removal efficiency in the GSA system was significantly enhanced by increasing the coal chloride level from 0.04 to 0.12 wt%. During this additional year of testing, an even higher coal chloride level (0.20 wt%) was simulated and the SO{sub 2} removal efficiency was found to improve further. In addition, lower inlet flue gas temperatures were evaluated during this second year of operation. In contrast to the results from other lime-based, dry scrubbing FGD technologies, the SO{sub 2} removal efficiency in the GSA system does not appear to decline significantly at reduced inlet flue gas temperatures, thereby offering a significant advantage for this FGD technology. The ESP performance was found to improve at higher coal chloride levels. The PJBH, which was furnished by the Electric Power Research Institute (EPRI), consistently achieved higher SO{sub 2} removals than the ESP, as would be expected. Thus, the GSA/PJBH system achieved much higher SO{sub 2} removal efficiency and better lime utilization than the GSA/ESP system.
- Research Organization:
- Electric Power Research Inst. (EPRI), Palo Alto, CA (United States)
- OSTI ID:
- 123437
- Report Number(s):
- EPRI-TR-105258-Vol.2; CONF-950332-Vol.2; TRN: 95:007572-0012
- Resource Relation:
- Conference: 15. EPRI-EPA-DOE SO/sub 2/ control symposium, Miami Beach, FL (United States), 28-31 Mar 1995; Other Information: PBD: Jun 1995; Related Information: Is Part Of Proceedings: 1995 SO{sub 2} control symposium. Volume 2, Sessions 4a, 4b, 5a, 5b; PB: 350 p.
- Country of Publication:
- United States
- Language:
- English
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