Screening of granular sorbents for the removal of gaseous alkali metal compounds from hot flue gas
Six commercially available sorbent materials have been tested as granular sorbents to be used in granular-bed filters for the removal of gaseous alkali metal compounds from the hot (800 to 880/sup 0/C) flue gas of pressurized fluidized-bed combustors (PFBC) for proposed combined-cycle power generation. Tests were performed by passing simulated relatively dry flue gas of PFBC through granular-bed filters in either a laboratory-scale, fixed-bed combustor or a high temperature sorption test rig. The experimental results of screening tests are presented. Diatomaceous earth and activated bauxite were found to be the two most promising sorbents. Possible sorption mechanisms and applications of the sorbents are discussed. 3 figures, 7 tables.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5605669
- Report Number(s):
- ANL/CEN/FE-79-17
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ADSORBENTS
PERFORMANCE TESTING
COMBINED-CYCLE POWER PLANTS
FLUIDIZED-BED COMBUSTION
OFF-GAS SYSTEMS
FLUE GAS
AIR POLLUTION ABATEMENT
ALKALI METAL COMPOUNDS
BAUXITE
DIATOMACEOUS EARTH
FILTERS
FLUIDIZED-BED COMBUSTORS
REMOVAL
VAPORS
ALUMINIUM ORES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
FLUIDS
GASEOUS WASTES
GASES
MINERALS
ORES
OXIDATION
POLLUTION ABATEMENT
POWER PLANTS
TESTING
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
200102 - Fossil-Fueled Power Plants- Power Cycles