Nonproprietary corrosion inhibitors for solvents to clean steam generators. Final report
The Steam Generator Owners Group, in association with EPRI, sponsored development work at Petrolite Corporation to develop a corrosion inhibitor for chemical-cleaning solvents to clean PWR nuclear steam generators. As a result of this work, a nonproprietary corrosion inhibitor, CCI-801, was selected and qualified in numerous laboratory demonstration tests. Companion projects dealing with the development of the cleaning process were carried out at The Babcock and Wilcox Company (RPS127-1); UNC Nuclear Industries, Inc. (RPS150-1); and Combustion Engineering, Inc. (RPS128-1). The development of inhibitors for chemical-cleaning fluids of necessity dealt with the chemistry of the inhibitors, the solution chemistry, the corrosion mechanism, the metallurgy of the metals to be protected, the system parameters such as the nature of galvanic coupling, and the techniques to monitor corrosion. Studies concerning these subjects are described in this report. It is concluded that CCI-801 is an effective inhibitor which protects all metals tested under all process conditions envisaged, with no perceived detrimental aftereffects.
- Research Organization:
- Petrolite Corp., St. Louis, MO (USA)
- OSTI ID:
- 5934654
- Report Number(s):
- EPRI-NP-3030; ON: DE83902663
- Country of Publication:
- United States
- Language:
- English
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