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Hydrogen Isotope Recovery Using a Cathode Water Vapor Feed PEM Electrolyzer

E. B. Fox, S. D. Greenway, A. A. Ekechukwu

Fusion Science and Technology

Volume 54 / Number 2 / August 2008 / Pages 483-486


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A critical component of tritium glovebox operations is the recovery of high value tritium from the water vapor in the glove box atmosphere. One proposed method to improve existing tritium recovery systems is to replace the disposable hot magnesium beds used to separate the hydrogen and oxygen in water with continuous use Proton Exchange Membrane Electrolyzers (PEMEs). This study examines radiation exposure to the membrane of a PEME and examines the sizing difference that would be needed if the electrolyzer were operated with a cathode water vapor feed instead of an anode liquid water feed.

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