Copper exchanged ultrastable zeolite Y - A catalyst for NH3-SCR of NOx from stationary biogas engines

J. Ochońska, D. McClymont, P.J. Jodłowski, A. Knapik, B. Gil, W. Makowski, W. Łasocha, A. Kołodziej, Stanislaw T Kolaczkowski, J. Łojewska

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

NO x emissions will need to be controlled from gas engines, which in the future could be using a syngas/producer gas as a fuel (generated from the gasification of biomass). In anticipation of this need, the activity of a copper-exchanged ultrastabilized zeolite Y was investigated, for the selective catalytic reduction of NO x . The catalyst performance and properties were compared with reference samples of Cu-exchanged un-stabilized Y and Cu exchanged ZSM-5 zeolites. Activity was related to the number and nature of active centers, which were determined by in situ FTIR and TPD experiments using CO, NO, and NH 3 as probe molecules. In the test reaction the ultrastabilized Cu-USY catalyst showed high activity at low temperatures and offered high hydrothermal resistance, whilst the Cu-ZSM-5 catalyst demonstrated the highest overall activity. The observed low temperature activity of the ultrastabilized Cu-USY catalyst was linked to the high abundance of Cu + sites, which were detected by in situ FTIR analyses using CO adsorption.
Original languageEnglish
Pages (from-to)6-11
Number of pages6
JournalCatalysis Today
Volume191
Issue number1
DOIs
Publication statusPublished - 15 Sep 2012

Fingerprint Dive into the research topics of 'Copper exchanged ultrastable zeolite Y - A catalyst for NH<sub>3</sub>-SCR of NO<sub>x</sub> from stationary biogas engines'. Together they form a unique fingerprint.

  • Cite this

    Ochońska, J., McClymont, D., Jodłowski, P. J., Knapik, A., Gil, B., Makowski, W., Łasocha, W., Kołodziej, A., Kolaczkowski, S. T., & Łojewska, J. (2012). Copper exchanged ultrastable zeolite Y - A catalyst for NH3-SCR of NOx from stationary biogas engines. Catalysis Today, 191(1), 6-11. https://doi.org/10.1016/j.cattod.2012.06.010