Comprehensive report to Congress Clean Coal Technology Program
In September 1988, Congress provided $575 million to conduct cost- shared Clean Coal Technology (CCT) projects to demonstrate technologies that are capable of retrofitting or repowering existing facilities. The AirPol, Inc. project will demonstrate the Gas Suspension Absorption (GSA) process. This process uses a unique absorber in which the flue gas is contacted with lime to remove up to 90% of the sulfur dioxide (SO{sub 2}) in the flue gas at a low calcium to sulfur stoichiometric ratio. The heart of the process is the GSA reactor. The flue gas flows upward through the vertical reactor vessel located between the air preheater and the particulate removal equipment. Fresh lime is injected as a slurry through a nozzle located in the base of the reactor. The quantity of fresh lime used is based on the SO{sub 2} content of the gas and the amount of water is controlled to cool the gas to the desired approach to its saturation temperature. Dry, partially spent lime is desired approach to its saturation temperature. Dry, partially spent lime is collected by a cyclone located downstream of the reactor and recycled back to the absorber. The gas then passes through an electrostatic precipitator (ESP) where the balance of the sorbent and fly ash are removed and the clean flue gas exits the plant through the stack. The project is located at the Shawnee Test Facility which is part of the Shawnee Fossil Plant in West Paducah, Kentucky. 5 figs., 1 tab.
- Research Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (USA). Office of Clean Coal Technology
- Sponsoring Organization:
- DOE/FE
- OSTI ID:
- 6674113
- Report Number(s):
- DOE/FE-0198P; ON: DE90016669
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
FLUE GAS
HOT GAS CLEANUP
SULFUR DIOXIDE
ABSORPTION
CHEMICAL REACTION KINETICS
CHEMICAL REACTORS
COMMERCIALIZATION
DEMONSTRATION PROGRAMS
LIMESTONE
SLURRIES
STOICHIOMETRY
US CLEAN COAL TECHNOLOGY PROGRAM
CARBONATE ROCKS
CHALCOGENIDES
DISPERSIONS
GASEOUS WASTES
KINETICS
MIXTURES
OXIDES
OXYGEN COMPOUNDS
PURIFICATION
REACTION KINETICS
ROCKS
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR OXIDES
SUSPENSIONS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions