Alkali metal vapor removal from pressurized fluidized-bed combustor flue gas. Quarterly report, April-June 1982

Technical Report · Sun Aug 01 00:00:00 EDT 1982

OSTI ID:6665291

Lee, S H.D.; Myles, K M; Jonke, A A

This work supports the program to develop methods for cleanup of combustion gases from pressurized fluidized-bed coal combustors (PFBC) so that the cleaned gases can be used to power downstream gas turbines without causing corrosion. A simulated PFBC flue gas was used to characterize diatomaceous earth for NaCl-vapor sorption at a bed temperature of 905/sup 0/C and a system pressure of 10 atm absolute. The capture of NaCl vapor was found to be essentially a combined result of a chemical reaction that converts the vapor into condensed sodium sulfate and chemical reactions that transform the captured sodium into water-insoluble silicate compounds. In sorption performance studies, 99.1% NaCl-vapor capture efficiency was achieved by a 12.7-cm-long bed tested for 8-h duration in a gas stream containing an average NaCl-vapor concentration of 28 ppmV. This efficiency significantly dropped, to 95.3%, when the NaCl-vapor concentration was decreased by an order of magnitude.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6665291
• Report Number(s): ANL/FE-82-20; ON: DE83003335
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
ALKALI METAL COMPOUNDS
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FLUIDIZED-BED COMBUSTORS
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COAL
FOSSIL-FUEL POWER PLANTS
GAS TURBINES
CARBONACEOUS MATERIALS
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THERMAL POWER PLANTS
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200104* - Fossil-Fueled Power Plants- Components