Control of alkali vapors by a granular-bed filter

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5780506

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

Control of alkali vapors in the pressurized fluidized-bed combustion (PFBC) of coal is being studied in a laboratory-scale fixed granular-bed filter. The potential sorbents identified earlier were tested for their alkali vapor sorption in a gas stream with temperature (greater than or equal to 850/sup 0/C), pressure (10 atm absolute), and composition closely simulating actual PFBC flue gas. The NaCl-vapor sorption efficiency of activated bauxite is > 99.8% and was found not to be diminished by HCl in flue gas. Diatomaceous earth has lower sorption efficiencies than activated bauxite. Emathlite, a fuller's earth, has a capability for NaCl-vapor capture. Its sorption behavior and preliminary sorption efficiencies are presented and discussed.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5780506
• Report Number(s): CONF-8305112-1; ON: DE83015367
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
ALKALI METAL COMPOUNDS
ALUMINIUM ORES
BAUXITE
CHLORIDES
CHLORINE COMPOUNDS
COMBUSTORS
DIATOMACEOUS EARTH
EFFICIENCY
FILTERS
FLUE GAS
FLUIDIZED-BED COMBUSTORS
GASEOUS WASTES
GRANULAR BED FILTERS
HALIDES
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
MECHANICAL FILTERS
ORES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SORPTION
WASTES