Propene-SCR of NO over electrically heating anodic alumina supported silver catalyst

Jian Chen*, Yu Guo, Tomohisa Kida, Lu Zhou, Huabo Li, Wen Zhao, Makoto Sakurai, Hideo Kameyama

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

An anodic alumina supported silver catalyst (1.7 Ag/Al2O3) was synthesized to investigate the selective catalytic reduction (SCR) of NO under an electrically heating pattern. It was found that less than 1 min was required to heat the catalyst from room temperature to 450°C. Comparing with a common furnace heating pattern, similar de-NOx activity was achieved. According to the electrically heating tests, the NOx conversion of 1.7 Ag/Al2O3 remained above 80% for 15 h at 450°C (F/W=65000 mL/(g · h)), which proved that it was commendable to apply this type of catalyst to C3H6-SCR of NO. Additionally, the promotional effect of hydrogen additive is also discussed under the electrically heating pattern. In the presence of 2000 ppm of hydrogen, the 1.7 Ag/Al2O3 reached 80% NOx conversion within a few seconds at 300°C, while the activity was very low at 300°C without hydrogen; such a high conversion was maintained for 15 h.

Original languageEnglish (US)
Pages (from-to)84-90
Number of pages7
JournalJournal of Chemical Engineering of Japan
Volume44
Issue number2
DOIs
StatePublished - Feb 25 2011

Keywords

  • Anodic Alumina Support
  • Electrically Heating
  • Hydrogen
  • Selective Catalytic Reduction
  • Silver

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

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