Evaluation of on-line chelant addition dilute chemical cleaning. Final report
The on-line addition of chelants (EDTA, HEDTA) was evaluated based on thermostability of the metal chelate at steam generator operating conditions and based upon material compatibility. Testing under prototypical operating conditions in a model steam generator demonstrated the feasibility of this process under various fouling conditions (seawater and freshwater). Application of dilute chemical cleaning to steam generators was also evaluated. Feasibility of this process was demonstrated by its ability to clean packed crevices. However, application times are long and corrosion rates, while acceptable, require additional development of non-sulfur containing inhibitors.
- Research Organization:
- Commonwealth Research Corp., Chicago, IL (USA)
- DOE Contract Number:
- AC02-79ET34015
- OSTI ID:
- 6594557
- Report Number(s):
- DOE/ET/34015-8; ON: DE85001443
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
AMINO ACIDS
BOILERS
CARBOXYLIC ACIDS
CHELATES
CHELATING AGENTS
CLEANING
COMPATIBILITY
COMPLEXES
EDTA
FRESH WATER
HEDTA
HYDROGEN COMPOUNDS
HYDROXY ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PWR TYPE REACTORS
REACTORS
SEAWATER
STABILITY
STEAM GENERATORS
VAPOR GENERATORS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
AMINO ACIDS
BOILERS
CARBOXYLIC ACIDS
CHELATES
CHELATING AGENTS
CLEANING
COMPATIBILITY
COMPLEXES
EDTA
FRESH WATER
HEDTA
HYDROGEN COMPOUNDS
HYDROXY ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PWR TYPE REACTORS
REACTORS
SEAWATER
STABILITY
STEAM GENERATORS
VAPOR GENERATORS
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS