Wet venturi doubles as an SO/sub 2/ scrubber
Development work at the Four Corners powerplant in New Mexico has shown that a venturi scrubber, originally installed for particulate removal only, can be retrofitted to remove enough SO/sub 2/ to comply with environmental strictures. All that is needed is a lime recirculation loop operated at an optimized pH that inhibits formation of scaling and corrosive compounds, while enhancing absorption of SO/sub 2/. A lime slurry is injected into the lower portion of the venturi to neutralize the scrubbing solution. A controlled fraction of this stream is then recycled to the upper portion of the venturi throat to contact the incoming flue gas. The lime addition raises the pH of the scrubbing liquor.
- OSTI ID:
- 5273496
- Journal Information:
- Power; (United States), Journal Name: Power; (United States) Vol. 125:12; ISSN POWEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION ABATEMENT
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
DESULFURIZATION
ENERGY SOURCES
EQUIPMENT
FLUE GAS
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
GASEOUS WASTES
MATERIALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
POWER PLANTS
SCRUBBERS
SCRUBBING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
VENTURI TUBES
WASTES