Influence of trace substances on methanation catalysts used in dynamic biogas upgrading

Research output: Research - peer-reviewJournal article

Abstract

The aim of this work was to study the possible deactivation effects of biogas trace ammonia concentrations on methanation catalysts. It was found that small amounts of ammonia led to a slight decrease in the catalyst activity. A decrease in the catalyst deactivation by carbon formation was also observed, with ammonia absorbed on the active catalyst sites. This was via a suppression of the carbon formation and deposition on the catalyst, since it requires a higher number of active sites than for the methanation of carbon oxides. From the paper findings, no special pretreatment for ammonia removal from the biogas fed to a methanation process is required.
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The aim of this work was to study the possible deactivation effects of biogas trace ammonia concentrations on methanation catalysts. It was found that small amounts of ammonia led to a slight decrease in the catalyst activity. A decrease in the catalyst deactivation by carbon formation was also observed, with ammonia absorbed on the active catalyst sites. This was via a suppression of the carbon formation and deposition on the catalyst, since it requires a higher number of active sites than for the methanation of carbon oxides. From the paper findings, no special pretreatment for ammonia removal from the biogas fed to a methanation process is required.
Original languageEnglish
JournalBioresource Technology
Volume178
Pages (from-to)319–322
Number of pages4
ISSN0960-8524
DOI
StatePublished - Feb 2015
Publication categoryResearch
Peer-reviewedYes

    Research areas

  • Methanation, Sabatier reaction, Catalysis, Biogas, Poisoning
ID: 206593281