<p>A study of electrochemical separation of pure H<sub>2</sub> from hydrogen-containing gas mixtures is described. Use was made of a hydrogen pump containing a polymer proton exchange membrane based on polybenzimidazole. A high degree of recovery of pure hydrogen from gas mixtures containing carbon oxides, methane, and nitrogen was demonstrated. The current-voltage characteristics of the hydrogen pump were analyzed, and the energy efficiency of electrochemical separation of hydrogen from carbon oxides, methane, and nitrogen was estimated.</p>

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Electrochemical separation of pure hydrogen from hydrogen-containing mixtures

  • S. D. Badmaev,
  • V. D. Belyaev,
  • P. V. Snytnikov,
  • V. A. Sobyanin

摘要

A study of electrochemical separation of pure H2 from hydrogen-containing gas mixtures is described. Use was made of a hydrogen pump containing a polymer proton exchange membrane based on polybenzimidazole. A high degree of recovery of pure hydrogen from gas mixtures containing carbon oxides, methane, and nitrogen was demonstrated. The current-voltage characteristics of the hydrogen pump were analyzed, and the energy efficiency of electrochemical separation of hydrogen from carbon oxides, methane, and nitrogen was estimated.