NH<sub>3</sub>-SCR-DeNO<sub><i>x</i></sub> Activity of Cu-Containing Commercial Zeolite Y

Commercial zeolite Y with different n(Si)/n(Al) ratios modified with copper cations were evaluated in the selective catalytic reduction of nitrogen oxide with ammonia (NH3-SCR-DeNOx). Among the investigated catalysts, the highest activity was achieved over CuY_CBV100 with 7.7 wt % of Cu. The activity of this sample was further confirmed in the feed of the tail gases stream from the pilot HNO3 plant. The highest N2 selectivity possesses CuY_CBV500 (3.7 wt % of Cu). To improve catalytic properties, both zeolites were mixed before ion exchange with copper, as well as in a more effective approach, both Cu-containing catalysts were physically mixed (in different weight ratios, 1:1, 1:9, 3:7, 7:3). CuY_CBV100 is more active due to the presence of more active sites, available in reduction/oxidation half-cycles.

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Publication Details

Journal
Industrial & Engineering Chemistry Research
Published
2024-09-27
DOI
https://doi.org/10.1021/acs.iecr.4c02245
Citations
6
Primary Topic
Catalytic Processes in Materials Science
Type
article
Field-Weighted Citation Impact
0.70

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article

NH3-SCR-DeNOx Activity of Cu-Containing Commercial Zeolite Y

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article

NH3-SCR-DeNOx Activity of Cu-Containing Commercial Zeolite Y

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article en
6 citations

Abstract

Commercial zeolite Y with different n(Si)/n(Al) ratios modified with copper cations were evaluated in the selective catalytic reduction of nitrogen oxide with ammonia (NH3-SCR-DeNOx). Among the investigated catalysts, the highest activity was achieved over CuY_CBV100 with 7.7 wt % of Cu. The activity of this sample was further confirmed in the feed of the tail gases stream from the pilot HNO3 plant. The highest N2 selectivity possesses CuY_CBV500 (3.7 wt % of Cu). To improve catalytic properties, both zeolites were mixed before ion exchange with copper, as well as in a more effective approach, both Cu-containing catalysts were physically mixed (in different weight ratios, 1:1, 1:9, 3:7, 7:3). CuY_CBV100 is more active due to the presence of more active sites, available in reduction/oxidation half-cycles.

Industrial & Engineering Chemistry ResearchVol. 63(40)
Jagiellonian University (PL), Maria Curie-Skłodowska University (PL), Lodz University of Technology (PL), Ruđer Bošković Institute (HR), Łukasiewicz Research Network (PL), New Chemical Syntheses Institute (PL), Leipzig University (DE)
Deutscher Akademischer Austauschdienst, Deutsche Forschungsgemeinschaft, Narodowe Centrum Nauki, Hrvatska Zaklada za Znanost
Openalex Percentile: Top 29%
Catalytic Processes in Materials Science
0.70
DOIOpen Access PDFOpenAlex
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