Aarhus University Seal / Aarhus Universitets segl

Removal of sulfur contaminants from biogas to enable direct catalytic methanation

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Dokumenter

DOI

In the near future, renewable energy sources will replace fossil energy. To allow full carbon utilization of renewable biomass, we have demonstrated a possible integration between a biogas reactor, an electrolysis unit, and a catalytic methanation reactor. Stringent removal of all sulfur contaminants in raw biogas is required to enable this integration. We demonstrate how existing bulk sulfur removal solutions, like a biotrickling filter loaded with Acidithiobacillus thiooxidans and impregnated activated carbon, are unable to meet this requirement. Only the main sulfur contaminant hydrogen sulfide (H 2S) can effectively be removed. Contaminants carbon disulfide (CS 2), dimethyl sulfide (DMS), and carbonyl sulfide (COS) will leak through the carbon filter, long before hydrogen sulfide can be detected. Utilization of surplus oxygen from the combined system is proven problem free and allows sulfur removal without introducing contaminants. Provided that a recommended sulfur guard is included, the proposed design is ready for full-scale implementation.

OriginalsprogEngelsk
TidsskriftBiomass Conversion and Biorefinery
Vol/bind11
Nummer5
Sider (fra-til)1823-1834
Antal sider12
ISSN2190-6823
DOI
StatusUdgivet - okt. 2021

    Forskningsområder

  • Biogas, El til gas, Methanisering, Svovl urenhedder

Se relationer på Aarhus Universitet Citationsformater

Download-statistik

Ingen data tilgængelig

ID: 174381358