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Accession Number DE2013-1086690
Title Assessment of the Impact of TOA Partitioning on DWPF Melter Off-Gas Flammability.
Publication Date Jun 2013
Media Count 16p
Personal Author W. E. Daniel
Abstract An assessment has been made to evaluate the impact on the DWPF melter off-gas flammability of increasing the amount of TOA in the current solvent used in the Modular Caustic-Side Solvent Extraction Process Unit (MCU) process. The results of this study showed that the concentrations of nonvolatile carbon of the current solvent limit (150 ppm) in the Slurry Mix Evaporator (SME) product would be about 7% higher and the nonvolatile hydrogen would be 2% higher than the actual current solvent (126 ppm) with an addition of up to 3 ppm of TOA when the concentration of Isopar L in the effluent transfer is controlled below 87 ppm and the volume of MCU effluent transfer to DWPF is limited to 15,000 gallons per Sludge Receipt and Adjustment Tank (SRAT)/SME cycle. Therefore, the DWPF melter off-gas flammability assessment is conservative for up to an additional 3 ppm of TOA in the effluent based on these assumptions. This report documents the calculations performed to reach this conclusion.
Keywords Assessments
Carbon
Ceramic melters
Flammability
Hydrogen
Off-gas systems
Radioactive effluents
Radioactive waste processing
Sludges
Slurries
Solvent extraction
Tanks


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 77G - Radioactive Wastes & Radioactivity
68F - Radiation Pollution & Control
Corporate Author Savannah River National Lab., Aiken, SC.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1402
Contract Number DE-AC09-08SR22470

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