Alkali metal vapor removal from pressurized fluidized-bed combustor flue gas. Quarterly report, January-March 1981

Technical Report · Mon Jun 01 04:00:00 EDT 1981

OSTI ID:6426171

Johnson, I; Lee, S H.D.

In the application of pressurized fluidized-bed combustion (PFBC) to the generation of electricity, hot corrosion of the gas turbine (downstream from the combustor) by alkali metal compounds in the combustion gas is a potential problem. The objective of this investigation is to develop a method for the removal of gaseous alkali metal compounds from the high-pressure high-temperature gas from a PFBC before the gas enters the turbine. The use of a granular-bed filter for gas cleanup, utilizing activated bauxite as the bed material, is under study. Data are reported on the removal of gaseous NaCl from hot (800/sup 0/C), pessurized (5 atm), wet (3.4% H/sub 2/O) simulated flue gas using activated bauxite. Greater than 99.9% NaCl vapor capture was achieved. The energy needed for the operation of a fixed granular-bed filter has been estimated. The energy needs and cost of using activated bauxite in the once-through and regeneration modes of operation are compared.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6426171
• Report Number(s): ANL/CEN/FE-81-5; ON: DE81028477
• Country of Publication: United States
• Language: English

Related Subjects

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200104* -- Fossil-Fueled Power Plants-- Components
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALKALI METAL COMPOUNDS
ALUMINIUM ORES
BAUXITE
CARBONACEOUS MATERIALS
CHLORIDES
CHLORINE COMPOUNDS
COAL
COMBINED-CYCLE POWER PLANTS
COMBUSTORS
DATA
DEMAND
ECONOMICS
ENERGY DEMAND
ENERGY SOURCES
EXPERIMENTAL DATA
FILTERS
FLUE GAS
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUELS
GASEOUS WASTES
GRANULAR BED FILTERS
HALIDES
HALOGEN COMPOUNDS
HOT GAS CLEANUP
INFORMATION
MATERIALS
MECHANICAL FILTERS
MINERALS
NUMERICAL DATA
ORES
PERFORMANCE
POWER PLANTS
PURIFICATION
REMOVAL
SODIUM CHLORIDES
SODIUM COMPOUNDS
THERMAL POWER PLANTS
WASTES