Controlling the Sulfur Poisoning of Ag/Al2O3 Catalysts for the Hydrocarbon SCR Reaction by Using a Regenerable SOx Trap

Sarayute Chansai*, Robbie Burch, Christopher Hardacre

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)
290 Downloads (Pure)

Abstract

The deactivation of a silver-based hydrocarbon selective catalytic reduction catalyst by SOx and the subsequent regeneration under various operating conditions has been investigated. Using a sulfur trap based on a silica-supported catalyst it was found that, for a Ag/SiO2 + Ag/Al2O3 combination, the negative effect of SO2 on the n-octane-SCR reaction can be eliminated under normal operating conditions. The trap can be regenerated by hydrogen at low temperatures or at higher temperatures using a hydrocarbon reductant.

Original languageEnglish
Pages (from-to)243-248
Number of pages6
JournalTopics in Catalysis
Volume56
Issue number1-8
Early online date01 Mar 2013
DOIs
Publication statusPublished - May 2013
Event9th International Congress on Catalysis and Automotive Pollution Control (CAPoC) - Brussels, Belgium
Duration: 29 Aug 201231 Aug 2012

Keywords

  • TOLERANCE
  • DEACTIVATION
  • HC-SCR
  • H-2
  • PROMOTION
  • n-octane
  • SELECTIVE REDUCTION
  • AG/GAMMA-AL2O3
  • ALUMINA CATALYSTS
  • Ag catalysts
  • SOx trap
  • Regeneration
  • SILVER CATALYSTS
  • HYDROGEN
  • NOx reduction
  • NOX REDUCTION

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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