Abstract
In order to investigate the viability of using Be as a redox agent in a molten Flibe (2LiF-BeF2) blanket, a series of kinetics experiments were performed in which HF was bubbled through Flibe with varying concentrations of dissolved Be. The feed gas consisted of 910-1800 ppm HF and 0.1-0.2 vol.% H2, with the balance comprised of He. A cylindrical rod of Be was contacted with the salt for periods of time ranging from 600 to 3600 s, resulting in mole fractions in the salt ranging from 4.3 × 10-5 to 2.6 × 10-4. Initially, high HF conversion levels in excess of 90% were observed. As HF reacted with the Be, the conversion levels slowly dropped over a period of several hours to a few days. A simple kinetic model, which is first order in both HF and Be concentration has been coupled with a non-mixed reactor model to yield a good fit to the data. Application of this model indicates that Be should be suitable for keeping the TF concentration in the salt below 0.02 ppb.
Original language | English |
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Pages (from-to) | 541-547 |
Number of pages | 7 |
Journal | Fusion Engineering and Design |
Volume | 81 A |
Issue number | 1-4 |
DOIs | |
State | Published - 2006/02 |
Event | Proceedings of the Seventh International Symposium on Fusion Nuclear Technology ISFNT-7 Part A - Duration: 2005/05/22 → 2005/05/27 |
Keywords
- Beryllium
- Corrosion
- Flibe
- Kinetics
- Redox
ASJC Scopus subject areas
- Civil and Structural Engineering
- Nuclear Energy and Engineering
- General Materials Science
- Mechanical Engineering