Direct decomposition processing of tritiated methane by helium RF plasma

Kazunari Katayama, Satoshi Fukada

Research output: Contribution to journalArticle

Abstract

With the aim of developing a method for the recovery of tritium from tritium-bearing hydrocarbons, it was shown experimentally that methane can be decomposed directly into hydrogen and carbon in RF plasmas via reactions initiated by electrons. Measurements performed with CH4 and CH3T in a helium RF plasma indicate that the degree of decomposition of CH3T is substantially smaller than that of CH4. This is considered to be caused by a very low concentration of CH3T. It was found that a majority of tritium dissociated from CH3T is retained in the plasma reactor. However, a certain amount of retained tritium could be removed by a discharge-cleaning of oxygen.

Original languageEnglish
Pages (from-to)426-431
Number of pages6
JournalFusion Science and Technology
Volume71
Issue number3
DOIs
Publication statusPublished - Apr 1 2017

Fingerprint

Helium
Tritium
Methane
tritium
methane
helium
Decomposition
Plasmas
decomposition
Processing
Bearings (structural)
Hydrocarbons
cleaning
low concentrations
Hydrogen
Cleaning
Carbon
hydrocarbons
recovery
reactors

All Science Journal Classification (ASJC) codes

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

Cite this

Direct decomposition processing of tritiated methane by helium RF plasma. / Katayama, Kazunari; Fukada, Satoshi.

In: Fusion Science and Technology, Vol. 71, No. 3, 01.04.2017, p. 426-431.

Research output: Contribution to journalArticle

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