Crystal Habit Modifiers for Nuclear Power Water Chemistry Control of Fuel Deposits and Steam Generator Crud
First Claim
1. A process for modifying the habit of crud or corrosion product deposits on nuclear power reactor primary circuit or secondary circuit surfaces comprising introducing into water circulating through the primary circuit or secondary circuit at least one crystal habit modifier capable of interacting, at the temperature and pressure within the respective primary circuit or secondary circuit, with crud or corrosion product deposit components, or crud or corrosion product deposit precursors, in an amount sufficient to slow, alter, or inhibit crud or corrosion product crystal growth.
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Abstract
Crystal habit modifiers (CHM) are provided to ameliorate deposit-related concerns in nuclear plant systems. The principal targets for utilization of crystal habit modifiers are Pressure Water Reactor (PWR) primary-side fuel rod crud and secondary-side steam generator deposits and Boiling Water Reactor (BWR) coolant system deposits.
36 Citations
20 Claims
- 1. A process for modifying the habit of crud or corrosion product deposits on nuclear power reactor primary circuit or secondary circuit surfaces comprising introducing into water circulating through the primary circuit or secondary circuit at least one crystal habit modifier capable of interacting, at the temperature and pressure within the respective primary circuit or secondary circuit, with crud or corrosion product deposit components, or crud or corrosion product deposit precursors, in an amount sufficient to slow, alter, or inhibit crud or corrosion product crystal growth.
Specification