Reference : Production of bio-hydrogen and methane during semi-continuous digestion of maize sila...
Scientific journals : Article
Engineering, computing & technology : Energy
http://hdl.handle.net/10993/30165
Production of bio-hydrogen and methane during semi-continuous digestion of maize silage in a two-stage system
English
Benito Martin, Patricia C. mailto []
Greger, Manfred mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Schlienz, Markus mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
2-Mar-2017
International Journal of Hydrogen Energy
Pergamon Press - An Imprint of Elsevier Science
Yes (verified by ORBilu)
International
0360-3199
[en] hydrogen ; two-stage system ; digestion
[en] The feasibility and performance of applying a two-stage configuration for co-production of hydrogen and methane from maize silage in continuously stirred reactors was investigated under mesophilic conditions. The high organic loading used in the first-stage hydrogen producing reactor (e.g. load shock treatment) was effective at ensuring hydrogen-producing conditions, with no methanogenic activity observed for more than 60 days. A hydrogen yield of up to 53.8 NlH2/kg volatile solid (VS) was measured in the first reactor, with a hydrogen content of 33.1%. The methane yield in the second stage reactor was 133.9 NlCH4/kgVS, with a methane content of 65%. Abnormally low concentration of acetic acid and high concentrations of caproic acid were measured in the first reactor in the pH range 5–5.5, which could be explained by the presence of strains such as Clostridium kluyveri. Of the estimated total energy yield in the two-stage system, only 4% was from hydrogen production. The mixture of hydrogen and methane produced in the system (after carbon dioxide removal) is in the range recommended for use as vehicle fuel.
University of Luxemburg
Researchers
http://hdl.handle.net/10993/30165
10.1016/j.ijhydene.2017.01.020

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Limited access
Int J Hydrogen Jan 2016.pdfAuthor preprint398.53 kBRequest a copy

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.