Experiment on recovery of hydrogen isotopes from Li17Pb83 blanket by liquid-gas contact

M. Kinjo, S. Fukada, K. Katayama, Y. Edao, T. Hayashi

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Recovery of hydrogen dissolved in Li-Pb eutectic alloy by mean of a bubbling tower is experimentally investigated. Mass-transfer coefficients to predict tritium recovery rate are experimentally determined when Ar and Ar+H2 gas bubbles are injected into Li-Pb through an I-shaped nozzle under the conditions of temperature 573 773 K and H2 partial pressure of 1 Pa 0.1 MPa. The results are fitted by an analytical equation based on diffusion and solution in Li-Pb. So that, the rate-determining step is hydrogen diffusion through a boundary layer formed in Li-Pb-gas interface and absorption and desorption are found to be almost reversible.

Original languageEnglish
Pages (from-to)520-526
Number of pages7
JournalFusion Science and Technology
Volume71
Issue number4
DOIs
Publication statusPublished - May 2017

All Science Journal Classification (ASJC) codes

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

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