Hydrogen production and fixation of sulfur from H2S by reaction with MOx and M(OH)x

Sato Nobuaki, Hiroki Iiduka, Shibata Etsuro, Takashi Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Citations (Scopus)


Hydrogen production and sulfur fixation by the reaction of H2S was studied by dry process using metal oxides (Mox) and hydroxides M(OH)x. By the thermogravimetry of geocite FeOOH, which was a mixted state of Fe 2O3 and Fe(OH)3, in H2S atmosphere, it was found that H2S reacted with FeOOH at low temperature (100-200°C) forming FeS2 followed by the decompositon of FeS 2 to FeS at 500°C. Hydrogen was quantitatively produced according to the chemical reaction between H2S and FeOOH by heating up to 200°C. The hydrogen production reaction could be applicalible to the other metal oxides and hydroxides. In In this case, the divalent sulfur of H 2S is oxidized to form polysufide, while the hydrogen is reduced to from hydrogen gas. Several types of hydrogen sulfide gases of several concentrations from different types of sulfur resources, such as sour gas, desulfurization of oil, industrial wastes, could be used. Metal hydrooxides produced from metal containing industrial wastes, such as sludge, are also applicable to the present hydrogen production process.

Original languageEnglish
Title of host publicationProceedings - European Metallurgical Conference, EMC 2005
Number of pages8
Publication statusPublished - 2005
EventEuropean Metallurgical Conference, EMC 2005 - Dresden, Germany
Duration: 2005 Sept 182005 Sept 21

Publication series

NameProceedings - European Metallurgical Conference, EMC 2005


ConferenceEuropean Metallurgical Conference, EMC 2005


  • Energysource
  • Hydrogen
  • Hydrosulfide
  • Hydroxide
  • Metallhydroxide


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