Electrochemical separation of pure hydrogen from hydrogen-containing mixtures
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.