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

Lars Jürgensen*, Ehiaze Augustine Ehimen, Jens Born, Jens Bo Holm-Nielsen, David Rooney

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)319-322
Number of pages4
JournalBioresource Technology
Volume178
Early online date28 Sep 2014
DOIs
Publication statusPublished - Feb 2015

Keywords

  • Biogas
  • Catalysis
  • Methanation
  • Poisoning
  • Sabatier reaction

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal
  • Medicine(all)

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