Development of Germanium Oxide Media for the Production of Concentrated Hydrogen by the Steam-Iron Process

Akira Miyamoto, Morlmichl Mlura, Kenji Sakamoto, Shlnji Kamltomal, Yuklo Kosakl, Yulchl Murakami

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9 Citations (Scopus)


Some germanium oxide media were found to convert dilute H2 to concentrated H2 more effectively than the iron oxide medium used for the present steam-iron process. Although the yield of concentrated H2 for unsupported GeO2 media was lower than that for the iron oxide medium, GeO2/Al2O3 media exhibited higher yields of concentrated H2. The addition of third components such as Ni and Cu to GeO2/Al3O3 further Increased the yield and enhanced the stability of the medium. It was also found that dilute CO gas was converted to concentrated H2 by using germanium oxide media. Although the GeO2/Al2O3 medium did not exhibit a high yield of concentrated H2 from the dilute CO gas, the addition of third components (e.g., Ni and Cu) markedly enhanced the yield. The yield of concentrated H2 for the germanium oxide media was not decreased by the addition of H2S to the dilute H2 gas, while that for the iron oxide was lowered slightly. From the results of X-ray diffraction of the media, a role of the third component was also discussed.

Original languageEnglish
Pages (from-to)467-470
Number of pages4
JournalIndustrial and Engineering Chemistry Product Research and Development
Issue number3
Publication statusPublished - 1984 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Engineering(all)
  • Industrial and Manufacturing Engineering


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