Quantitative measurement of beryllium-controlled redox of hydrogen fluoride in molten Flibe

Michael F. Simpson, Galen R. Smolik, John P. Sharpe, Robert A. Anderl, David A. Petti, Yuji Hatano, Masanori Hara, Yasuhisa Oya, Satoshi Fukada, Satoru Tanaka, Takayuki Terai, Dai Kai Sze

Research output: Contribution to journalConference articlepeer-review

26 Citations (Scopus)


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 languageEnglish
Pages (from-to)541-547
Number of pages7
JournalFusion Engineering and Design
Volume81 A
Issue number1-4
Publication statusPublished - Feb 1 2006
EventProceedings of the Seventh International Symposium on Fusion Nuclear Technology ISFNT-7 Part A -
Duration: May 22 2005May 27 2005

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering


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