EPRI High-Sulfur Test Center: Wet FGD (flue gas desulfurization) sodium carbonate mass-transfer tests: Final report

Technical Report · Sat Oct 01 04:00:00 EDT 1988

OSTI ID:6692658

Jarvis, J B; Burke, J M

HSTC contains pilot- and mini-pilot-scale systems for investigating wet FGD technologies, as well as dry-injection and spray-drying pilot systems for investigating dry FGD technologies. A series of sodium carbonate (Na/sub 2/CO/sub 3/) mass-transfer tests is the first step in characterizing the SO/sub 2/ removal capabilities of wet FGD systems at HSTC. By using sodium as the SO/sub 2/ absorbent, an excess of liquid-phase alkalinity is provided to assure that gas-limited mass transfer alone will control SO/sub 2/ removal. Objectives of this project were to determine the maximum possible SO/sub 2/ removal capabilities of the HSTC wet FGD systems under different configurations; to provide data for modeling SO/sub 2/ absorption under gas-limited mass-transfer conditions. Sodium mass-transfer tests were conducted using slurry with a high concentration of liquid-phase alkalinity, established by adding sodium carbonate and maintained with a unique, in situ, dual-alkali operating system that continuously regenerated slurry alkalinity with slaked quicklime (Ca(OH)/sub 2/). This process allows testing of a slurry, simulating a lime or limestone scrubber, while maintaining an excess of liquid-phase alkalinity to assure gas-limited mass-transfer conditions. SO/sub 2/ removal efficiencies were measured of the mini-pilot and pilot systems for three absorber configurations---spray tower, tray tower, and packed tower. More than 300 tests were conducted over a wide range of operating conditions, using various types of spray nozzles characterized for spray distribution patterns. 5 refs., 74 figs., 23 tabs.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (USA); Radian Corp., Austin, TX (USA)
• OSTI ID: 6692658
• Report Number(s): EPRI-CS-6029; ON: TI89001760
• Country of Publication: United States
• Language: English

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AIR POLLUTION CONTROL
ALKALI METAL COMPOUNDS
CARBON COMPOUNDS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
COST
DESULFURIZATION
DISPERSIONS
DOCUMENT TYPES
EFFICIENCY
EQUATIONS
EQUIPMENT
FLOW RATE
FLUE GAS
GASEOUS WASTES
KINETICS
LIME-LIMESTONE WET SCRUBBING PROCESSES
MASS TRANSFER
MIXTURES
NOZZLES
OXIDES
OXYGEN COMPOUNDS
PACKINGS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
PRESSURE DROP
PROGRESS REPORT
SCRUBBERS
SCRUBBING
SLURRIES
SODIUM CARBONATES
SODIUM COMPOUNDS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SUSPENSIONS
TESTING
WASTES