Screening of granular sorbents for the removal of gaseous alkali metal compounds from hot flue gas

Technical Report · Thu Nov 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/5605669· OSTI ID:5605669

Lee, S. H.D.; Swift, W. M.; Johnson, I.

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., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5605669
• Report Number(s): ANL/CEN/FE-79-17
• Country of Publication: United States
• Language: English

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ADSORBENTS
AIR POLLUTION ABATEMENT
ALKALI METAL COMPOUNDS
ALUMINIUM ORES
BAUXITE
CHEMICAL REACTIONS
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTORS
DIATOMACEOUS EARTH
FILTERS
FLUE GAS
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FLUIDS
GASEOUS WASTES
GASES
MINERALS
OFF-GAS SYSTEMS
ORES
OXIDATION
PERFORMANCE TESTING
POLLUTION ABATEMENT
POWER PLANTS
REMOVAL
TESTING
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
VAPORS
WASTES