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) combined-cycle system. A laboratory-scale pressurized alkali vapor 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 to 900/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 alkali-vapor 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. 15 references, 6 figures, 3 tables.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6141917
- Report Number(s):
- CONF-850351-3; ON: DE85006202
- Resource Relation:
- 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 vapors in PFBC (pressurized fluidized-bed combustion) process stream and their removal with a fixed granular-bed sorber, October 1, 1986-September 30, 1987
Related Subjects
20 FOSSIL-FUELED POWER PLANTS
ALKALI METAL COMPOUNDS
REMOVAL
BAUXITE
CHEMICAL COMPOSITION
REGENERATION
COMBUSTION PRODUCTS
PURIFICATION
FLUIDIZED-BED COMBUSTION
GRANULAR BED FILTERS
PERFORMANCE
VAPORS
ADSORBENTS
COAL
EXPERIMENTAL DATA
GAS TURBINES
HOT GAS CLEANUP
MEDIUM PRESSURE
PARTICULATES
POTASSIUM CHLORIDES
SODIUM CHLORIDES
TEST FACILITIES
ALUMINIUM ORES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COMBUSTION
DATA
ENERGY SOURCES
FILTERS
FLUIDS
FOSSIL FUELS
FUELS
GASES
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MACHINERY
MATERIALS
MECHANICAL FILTERS
NUMERICAL DATA
ORES
OXIDATION
PARTICLES
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
010800* - Coal
Lignite
& Peat- Waste Management
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions