Carbon-14 immobilization via the CO/sub 2/-Ba(OH)/sub 2/ hydrate gas-solid reaction
For the treatment of an air-based off-gas stream, the use of packed beds of Ba(OH)/sub 2/.8H/sub 2/O flakes to remove CO/sub 2/ has been demonstrated. However, the operating conditions must be maintained between certain upper and lower limits with respect to the partial pressure of water. If the water vapor pressure in the gas is less than the dissociation vapor pressure of Ba(OH)/sub 2/.8H/sub 2/O, the bed will deactivate. If the vapor pressure is considerably greater, pressure drop problems will increase with increaseing humidity as the particles curl and degrade. Results have indicted that when operated in the proper regime, the bulk of the increase in pressure drop results from the conversion of Ba(OH)/sub 2/.8H/sub 2/O to BaCO/sub 3/ and not from the hydration of the commercial Ba(OH)/sub 2/.8H/sub 2/O (i.e., Ba(OH)/sub 2/.7.50H/sub 2/O) to Ba(OH)/sub 2/.8H/sub 2/O.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6155532
- Report Number(s):
- ORNL/TM-7693; ON: DE81029105
- Country of Publication:
- United States
- Language:
- English
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Carbon-14 immobilization via the CO/sub 2/-Ba(OH)/sub 2/ hydrate gas-solid reaction
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Mon Dec 31 23:00:00 EST 1979
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OSTI ID:6921488
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Related Subjects
052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM HYDROXIDES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON 14 COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON ISOTOPES
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
EVEN-EVEN NUCLEI
GASEOUS WASTES
HYDRATES
HYDROGEN COMPOUNDS
HYDROXIDES
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
MANAGEMENT
NUCLEAR FACILITIES
NUCLEI
OFF-GAS SYSTEMS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PRESSURE DROP
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
SOLIDIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM HYDROXIDES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CARBON 14
CARBON 14 COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON ISOTOPES
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
EVEN-EVEN NUCLEI
GASEOUS WASTES
HYDRATES
HYDROGEN COMPOUNDS
HYDROXIDES
ISOTOPES
LABELLED COMPOUNDS
LIGHT NUCLEI
MANAGEMENT
NUCLEAR FACILITIES
NUCLEI
OFF-GAS SYSTEMS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PRESSURE DROP
PROCESSING
RADIOACTIVE WASTE PROCESSING
RADIOISOTOPES
SOLIDIFICATION
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
YEARS LIVING RADIOISOTOPES