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


Reference:

Ochońska, J., McClymont, D., Jodłowski, P.J., Knapik, A., Gil, B., Makowski, W., Łasocha, W., Kołodziej, A., Kolaczkowski, S. T. and Łojewska, J., 2012. Copper exchanged ultrastable zeolite Y - A catalyst for NH3-SCR of NOx from stationary biogas engines. Catalysis Today, 191 (1), pp. 6-11.

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Official URL:

http://dx.doi.org/10.1016/j.cattod.2012.06.010

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.

Details

Item Type Articles
CreatorsOchońska, J., McClymont, D., Jodłowski, P.J., Knapik, A., Gil, B., Makowski, W., Łasocha, W., Kołodziej, A., Kolaczkowski, S. T. and Łojewska, J.
DOI10.1016/j.cattod.2012.06.010
DepartmentsFaculty of Engineering & Design > Chemical Engineering
RefereedYes
StatusPublished
ID Code31019

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