Integration of biohydrogen fermentation and gas separation processes to recover and enrich hydrogen

K. Bélafi-Bakó, D. Búcsú, Z. Pientka, B. Bálint, Z. Herbel, K.I. Kovács, Matthias Wessling

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An integrated system for biohydrogen production and separation was designed, constructed and operated where biohydrogen was fermented by Thermococcus litoralis, a heterotrophic archaebacterium, and a two-step gas separation process was coupled to recover and concentrate hydrogen. A special liquid seal system was built to deliver, compress and collect the laboratory scale, low volume gas mixtures consisting of hydrogen, nitrogen and carbon dioxide. As a result, gas mixture with 73% high hydrogen content was produced by a combination of a porous and a non-porous gas separation membrane.
Original languageUndefined
Pages (from-to)1490-1495
JournalInternational journal of hydrogen energy
Issue number11
Publication statusPublished - 2006


  • IR-57969
  • METIS-235390

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