Combustion Engineering's furnace sorbent-injection programs for SO/sub 2/ control
The paper discusses three Combustion Engineering programs relating to the furnace sorbent injection process, a low-cost method for controlling sulfur dioxide (SO/sub 2/) emissions from tangentially fired, coal burning boilers. The programs are: (1) pilot-scale investigations in the laboratory, (2) a prototype-scale program in a 65-MW utility boiler, and (3) a demonstration-scale program in a 180-MW utility boiler. A primary application of the technology is for retrofitting existing boilers in response to expected U.S. legislation for control of acid rain. In the process, the sorbent, usually calcium hydroxide (Ca(OH)/sub 2/) or limestone (CaCO/sub 3/), is injected above the flame zone where it mixes with flue gas containing SO/sub 2/. The SO/sub 2/ reacts chemically in the upper furnace with lime (CaO), formed from the sorbent, to make solid calcium sulfate (CaSO/sub 4/). The CaSO/sub 4/ is removed with fly ash in existing particulate control equipment.
- Research Organization:
- Combustion Engineering, Inc., Windsor, CT (USA)
- OSTI ID:
- 5569190
- Report Number(s):
- PB-88-132196/XAB
- Country of Publication:
- United States
- Language:
- English
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Sulfur dioxide emission control by furnace injection of a dry sorbent
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Related Subjects
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
AIR POLLUTION ABATEMENT
BOILERS
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
EMISSION
ENERGY SOURCES
FOSSIL FUELS
FOSSIL-FUEL POWER PLANTS
FUELS
HYDRATES
MATERIALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POWER PLANTS
REMOVAL
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES