On-line monitoring of secondary-cycle chemistry with morpholine at the Beaver Valley Power Station: Final report
Beaver Valley is the only PWR with vertical steam generators in the United States which has used morpholine in the all-volatile chemistry control program for its entire operating history. Morpholine is very similar to proposed alternatives to ammonia. Hence, a careful study of its benefits and side effects may provide an indication of the value of additives similar to, but superior to, morpholine. On-line chromatography was used to characterize morpholine, ammonia, organic acids, chloride, fluoride, and sulfate levels at Beaver Valley during operation with different morpholine feed rates. This study verified the feasibility of using on-line ion chromatography to monitor secondary cycle pH control agents, organic acids, and ionic impurities. Morpholine usage will elevate steam generator blowdown cation conductivity by approximately 0.1 to 0.15 ..mu..S/cm as a result of acetic and formic acids. However, organic acid levels do not increase in proportion to morpholine levels, suggesting a threshold reaction that is satisfied at low (e.g., 0.2 ppM) morpholine levels.
- Research Organization:
- NUS Operating Services Corp., Pittsburgh, PA (USA). Radiation Protection and Chemistry Services Dept.; Electric Power Research Inst., Palo Alto, CA (USA)
- OSTI ID:
- 6347663
- Report Number(s):
- EPRI-NP-5266; ON: TI87920501
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effects of alternate pH control additives on PWR secondary cycle chemistry: Final report
Advanced studies in chemistry control with morpholine
Related Subjects
210200* -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
AMINES
BEAVER VALLEY-1 REACTOR
BOILERS
CHEMISTRY
CHROMATOGRAPHY
COOLING SYSTEMS
ENERGY SYSTEMS
ETHERS
HETEROCYCLIC COMPOUNDS
HYDRAZINE
IMPURITIES
ION EXCHANGE CHROMATOGRAPHY
MORPHOLINES
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PH VALUE
POWER REACTORS
PWR TYPE REACTORS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SECONDARY COOLANT CIRCUITS
SEPARATION PROCESSES
SLUDGES
STEAM GENERATORS
VAPOR GENERATORS
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS