NOx removal efficiency and N2 selectivity during selective catalytic reduction processes over Al2O3 supported highly cross-linked polyethylene catalysts

Ahmad M. Abu-Jrai, Jehad A. Yamin, Khalid A. Ibrahim, Omar A. Al-Khashman, Mouath A. Al-Shaweesh, Muhannad A. Hararah, Umer Rashid, Mohammad Ahmad, Gavin M. Walker, Ala'a H. Al-Muhtaseb

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5 Citations (Scopus)

Abstract

The performance of a highly cross-linked polyethylene catalyst supported on alumina for low temperature selective catalytic reduction of NOx by unburned hydrocarbons (HCs) existing in an exhaust gas was examined at different engine conditions with the addition of exhaust-gas recirculation. The HXPE catalyst was shown to exhibit good NOx reduction activity at low temperatures (100-250°C) where the only reductant was the unburned HC, which was already present in the exhaust flow. The maximum NOx reduction of approximately 52% was achieved at a temperature of 150°C. HXPE demonstrated very good selectivity toward N2 in the majority of tested conditions (~80%).

Original languageEnglish
Pages (from-to)1650-1655
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume20
Issue number4
DOIs
Publication statusPublished - Jul 25 2014

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Keywords

  • Exhaust gas recirculation
  • Highly cross-linked polyethylene
  • PM
  • Polymer catalysts
  • SCR
  • Selective catalytic reduction

ASJC Scopus subject areas

  • Chemical Engineering(all)

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