Alkali-metal-vapor removal from pressurized fluidized-bed combustor flue gas. Annual report, October 1980-September 1981

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5599666

Johnson, I; Lee, S H.D.

This work supports the program to develop methods for the cleanup of high-temperature, high-pressure combustion gases from pressurized fluidized-bed coal combustors so that the cleaned gases can be used to power downstream gas turbines. Data are presented in this report on the use of activated bauxite in a granular bed filter for the removal of gaseous NaCl from hot (800/sup 0/C), pressurized (less than or equal to 8 atm), wet simulated PFBC flue gas. Also, the sorption mechanisms are discussed. Greater than 99.9% NaCl vapor capture was achieved. Also reported are (1) the effects of several operating variables on the rate of leaching of NaCl that had been adsorbed on activated bauxite and (2) the volatility of alkali metal compounds present as impurities in activated bauxite. Finally, the preliminary estimate of the cost of using activated bauxite as a filter medium for the control of alkali vapors from PFBC flue gas was updated; a conceptual design of a fixed granular-bed filter was presented; and the energy needs and their costs for operating the filter in (a) the once-through and (b) the sorbent-regeneration modes were compared.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5599666
• Report Number(s): ANL/FE-81-59; ON: DE82008088
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
014000 -- Coal
Lignite
& Peat-- Combustion
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
ALKALI METAL COMPOUNDS
ALKALI METALS
ALUMINIUM ORES
BAUXITE
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL
COMBUSTION
CORROSION
COST
CRYSTAL STRUCTURE
DESIGN
ELEMENTS
ENERGY SOURCES
FILTERS
FLUE GAS
FLUIDIZED-BED COMBUSTION
FLUIDS
FOSSIL FUELS
FUELS
GAS TURBINES
GASEOUS WASTES
GASES
GRANULAR BED FILTERS
HALIDES
HALOGEN COMPOUNDS
HEAT TREATMENTS
HOT GAS CLEANUP
MACHINERY
MATERIALS
MECHANICAL FILTERS
MEDIUM PRESSURE
METALS
MICROSTRUCTURE
ORES
OXIDATION
PERFORMANCE
POROSITY
PURIFICATION
REGENERATION
REMOVAL
SODIUM CHLORIDES
SODIUM COMPOUNDS
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
VAPORS
WASTES