High SO{sub 2} removal efficiency testing. Technical progress report

Technical Report · Thu Apr 28 04:00:00 EDT 1994

DOI:https://doi.org/10.2172/10158852· OSTI ID:10158852

Blythe, G

The project involves testing at six full-scale utility flue gas desulfurization (FGD) systems, to evaluate low capital cost upgrades that may allow these systems to achieve up to 98% SO{sub 2} removal efficiency. The upgrades to be evaluated mostly involve using additives in the FGD systems. On the base program, testing was completed at the Tampa Electric Big Bend Station in November 1992. The upgrade option tested was DBA additive. For Option 1, at the Hoosier Energy Merom Station, three upgrade options have been tested: DBA additive, sodium formate additive, and high pH set point operation. Option 2 has involved testing at the Southwestern Electric Power Company Pirkey Station. Both sodium formate and DBA additives were tested as potential upgrade options at Pirkey. On Option 3, for testing at the PSI Energy Gibson Station, a DBA additive performance and consumption test was conducted in late February through mid-March 1994. Preliminary results from these tests are discussed in Section 3 of this progress report. Option 4 is for testing at the Duquesne Light Elrama Station. The FGD system employs magnesium-enhanced lime reagent and venturi absorber modules. An EPRI-funded model evaluation of potential upgrade options for this FGD system, along with a preliminary economic evaluation, determined that the most attractive upgrade options for this site were to increase thiosulfate ion concentrations in the FGD system liquor to lower oxidation percentages and increase liquid-phase sulfite alkalinity, and to increase the venturi absorber pressure drop to improve gas/liquid contacting. Parametric testing of these upgrade options was conducted in late March 1994. Preliminary results from these tests are also discussed in Section 3 of this progress report.

• Research Organization: Radian Corp., Austin, TX (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); Electric Power Research Inst., Palo Alto, CA (United States)
• DOE Contract Number: AC22-92PC91338
• OSTI ID: 10158852
• Report Number(s): DOE/PC/91338--T7; ON: DE94013474; BR: AA0505000
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800
20 FOSSIL-FUELED POWER PLANTS
200202
ADDITIVES
COMPILED DATA
DESIGN
DESULFURIZATION
EXPERIMENTAL DATA
FLOWSHEETS
FLUE GAS
FOSSIL-FUEL POWER PLANTS
NOXIOUS GAS AND PARTICULATE EMISSIONS
OPTIMIZATION
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
PROGRESS REPORT
REMOVAL
SULFUR DIOXIDE
WASTE MANAGEMENT