Humidification of flue gas to augment SO/sub 2/ capture by dry sorbents. Repprt for October 1985-July 1988 (Final)
Technical Report
·
OSTI ID:5770951
This report discusses, for a coal-burning power plant, using humidification of the flue gas in a low-temperature duct to increase SO/sub 2/ removal by dry calcium-based sorbents. In particular, humidification may be a desirable modification of EPA's LIMB process, which is based on injecting limestone or hydrated lime in the furnace; it could augment SO/sub 2/ removal by adding post-furnace removal to that occurring in the injection zone. The report covers work in post-furnace humidification, charge-augmented humidification, water vapor adsorption by lime (with and without additives), and mathematical modeling of humidification and SO/sub 2/ removal processes. From these investigations, it was concluded that, for enhancement of SO/sub 2/ capture at the Edgewater demonstration of LIMB, humidification by a water spray will be required. A spray of pure water would suffice if the frequency of collisions between sorbent particles and water droplets could be increased. Deliquescent additives that are known to enhance SO/sub 2/ capture by Ca(OH)/sub 2/ at low temperatures must operate to some extent by mechanisms other than deliquescence.
- Research Organization:
- Southern Research Inst., Birmingham, AL (USA)
- OSTI ID:
- 5770951
- Report Number(s):
- PB-89-169841/XAB; SRI-ENV-88-1023-5914
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DESIGN
DESULFURIZATION
DOCUMENT TYPES
FLUE GAS
FOSSIL-FUEL POWER PLANTS
FUNCTIONAL MODELS
FURNACES
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
MATHEMATICAL MODELS
MODIFICATIONS
OXIDES
OXYGEN COMPOUNDS
PILOT PLANTS
POLLUTION CONTROL
POWER PLANTS
PROGRESS REPORT
QUALITY CONTROL
ROCKS
SCRUBBING
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
DESIGN
DESULFURIZATION
DOCUMENT TYPES
FLUE GAS
FOSSIL-FUEL POWER PLANTS
FUNCTIONAL MODELS
FURNACES
GASEOUS WASTES
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMESTONE
MATHEMATICAL MODELS
MODIFICATIONS
OXIDES
OXYGEN COMPOUNDS
PILOT PLANTS
POLLUTION CONTROL
POWER PLANTS
PROGRESS REPORT
QUALITY CONTROL
ROCKS
SCRUBBING
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
WASTES