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Detailed investigations of dissolved hydrogen and hydrogen mass transfer in a biotrickling filter for upgrading biogas.

Publication ,  Journal Article
Dupnock, TL; Deshusses, MA
Published in: Bioresource technology
October 2019

This study investigated the hydrogen mass transfer limitations in a biotrickling filter inoculated with hydrogenotrophic methanogens for biogas upgrading. A highly sensitive dissolved hydrogen probe allowed measuring concentrations in real-time. Experiments were conducted to test the mass transfer resistance in the gas and liquid films. Results demonstrated that the main resistance resides in the trickling liquid film and that promoting direct gas-biofilm mass transfer could improve upgrading performance by about 20%. Increasing the gas velocity (keeping a constant gas contact time) lowered the upgrading capacity. This was explained by the lowering of the concentration to the average concentration throughout the bed, which resulted a lower reaction rate. At extended gas contact times, the bioreactor shifted from microbial to diffusion limitation, causing lower upgrading capacities. Methane-containing biogas mimics (H2/CH4/CO2) were successfully upgraded to natural gas pipeline standards (>97% methane) with only minor performance reduction compared to upgrading just a H2/CO2 mixture.

Duke Scholars

Published In

Bioresource technology

DOI

EISSN

1873-2976

ISSN

0960-8524

Publication Date

October 2019

Volume

290

Start / End Page

121780

Related Subject Headings

  • Methane
  • Hydrogen
  • Euryarchaeota
  • Biotechnology
  • Bioreactors
  • Biofuels
  • 3107 Microbiology
  • 3106 Industrial biotechnology
  • 3001 Agricultural biotechnology
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Dupnock, T. L., & Deshusses, M. A. (2019). Detailed investigations of dissolved hydrogen and hydrogen mass transfer in a biotrickling filter for upgrading biogas. Bioresource Technology, 290, 121780. https://doi.org/10.1016/j.biortech.2019.121780
Dupnock, Trisha L., and Marc A. Deshusses. “Detailed investigations of dissolved hydrogen and hydrogen mass transfer in a biotrickling filter for upgrading biogas.Bioresource Technology 290 (October 2019): 121780. https://doi.org/10.1016/j.biortech.2019.121780.
Dupnock, Trisha L., and Marc A. Deshusses. “Detailed investigations of dissolved hydrogen and hydrogen mass transfer in a biotrickling filter for upgrading biogas.Bioresource Technology, vol. 290, Oct. 2019, p. 121780. Epmc, doi:10.1016/j.biortech.2019.121780.
Journal cover image

Published In

Bioresource technology

DOI

EISSN

1873-2976

ISSN

0960-8524

Publication Date

October 2019

Volume

290

Start / End Page

121780

Related Subject Headings

  • Methane
  • Hydrogen
  • Euryarchaeota
  • Biotechnology
  • Bioreactors
  • Biofuels
  • 3107 Microbiology
  • 3106 Industrial biotechnology
  • 3001 Agricultural biotechnology