Removal of alkali vapors by a fixed granular-bed sorber using activated bauxite as a sorbent
Studies have been conducted to develop a fixed granular-bed sorber for the removal of alkali vapors in a pressurized fluidized-bed combustion (PFBC) combinedcycle system. A laboratory-scale pressurized alkalivapor sorption test unit was used to characterize activated bauxite, the most effective sorbent identified earlier, for its alkali vapor sorption capability in a gas stream with temperature (less than or equal to900/sup 0/C), pressure (10 atm absolute), and composition closely simulating the actual PFBC flue gas. A scale-up of laboratory tests is being conducted in a 15.2-cm-dia (6-in.-dia) PFBC system to demonstrate the granular-bed sorber concept. The NaCl-vapor sorption chemistry of activated bauxite is described. The extent of alkalivapor evolution from the activated bauxite bed itself is discussed, along with an evaluation of the significance of its alkali vapor contribution to a downstream gas turbine. Details of the design of a high-temperature/high-pressure alkali sorber system for the demonstration of the sorber are presented.
- Research Organization:
- Argonne Nat. Laboratory, Argonne, IL
- OSTI ID:
- 5457373
- Report Number(s):
- CONF-850351-
- Journal Information:
- Am. Soc. Mech. Eng., (Pap.); (United States), Vol. 85-GT-167; Conference: 30. international gas turbine conference and exhibit, Houston, TX, USA, 18 Mar 1985
- Country of Publication:
- United States
- Language:
- English
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Measurement of alkali vapors in PFBC flue gas and their control by a granular-bed sorber
Measurement of alkali vapor in PFBC flue gas and its control by a fixed granular bed of activated bauxite
Related Subjects
54 ENVIRONMENTAL SCIENCES
ALKALI METAL COMPOUNDS
ADSORPTION
BAUXITE
SORPTIVE PROPERTIES
FLUIDIZED-BED COMBUSTORS
POLLUTION CONTROL EQUIPMENT
GAS TURBINES
FLUE GAS
SODIUM CHLORIDES
ACTIVATION ENERGY
ADSORBENTS
BENCH-SCALE EXPERIMENTS
COMBINED CYCLES
GRANULAR MATERIALS
PACKED BED
SEPARATION EQUIPMENT
VAPORS
ALUMINIUM ORES
CHLORIDES
CHLORINE COMPOUNDS
COMBUSTORS
ENERGY
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HALIDES
HALOGEN COMPOUNDS
MACHINERY
MATERIALS
ORES
SODIUM COMPOUNDS
SORPTION
SURFACE PROPERTIES
THERMODYNAMIC CYCLES
TURBINES
TURBOMACHINERY
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)