DeNOx abatement over sonically prepared iron-substituted Y, USY and MFI zeolite catalysts in lean exhaust gas conditions
Authors:
- Damian K. Chlebda,
- Patrycja Stachurska,
- Roman J. Jędrzejczyk,
- Łukasz Kuterasiński,
- Anna Dziedzicka,
- Sylwia Górecka,
- Lucjan Chmielarz,
- Joanna Łojewska,
- Maciej Sitarz,
- Przemysław J. Jodłowski
Abstract
Iron-substituted MFI, Y and USY zeolites prepared by two preparation routes—classical ion exchange and the ultrasound modified ion-exchange method—were characterised by micro-Raman spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and ultraviolet (UV)/visible diffuse reflectance spectroscopy (UV/Vis DRS). Ultrasound irradiation, a new technique for the preparation of the metal salt suspension before incorporation to the zeolite structure, was employed. An experimental study of selective catalytic reduction (SCR) of NO with NH3 on both iron-substituted reference zeolite catalysts and those prepared through the application of ultrasound conducted during an ion-exchange process is presented. The prepared zeolite catalysts show high activity and selectivity in SCR deNOx abatement. The MFI-based iron catalysts, especially those prepared via the sonochemical method, revealed superior activity in the deNOx process, with almost 100% selectivity towards N2. The hydrothermal stability test confirmed high stability and activity of MFI-based catalysts in water-rich conditions during the deNOx reaction at 450 °C.
- Record ID
- CUT416ca72c59954537b7a25d57e55ddc02
- Publication categories
- ;
- Author
- Journal series
- Nanomaterials, ISSN , e-ISSN 2079-4991, Biweekly
- Issue year
- 2018
- Vol
- 8
- No
- 1
- Pages
- [1-19]
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 17-19; Bibliografia (liczba pozycji) - 43; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 8, Iss. 1
- Keywords in English
- deNOx selective catalytic reduction (SCR), zeolites, sonochemistry, iron oxide, Fe-zeolites
- DOI
- DOI:10.3390/nano8010021 Opening in a new tab
- URL
- http://www.mdpi.com/2079-4991/8/1/21 Opening in a new tab
- Related project
- Sonochemia jako narzędzie do aktywacji katalizatorów. Badania in situ i operando. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Nowoczesne rozwiązania technologiczne dedykowane do usuwania zanieczyszczeń z silników i turbin biogazowych. Strukturalny konwerter katalityczny LZO i NOx. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (]
- Sonochemia jako narzędzie do aktywacji katalizatorów. Badania in situ i operando. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 35
- Publication indicators
- = 15
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT416ca72c59954537b7a25d57e55ddc02/
- URN
urn:pkr-prod:CUT416ca72c59954537b7a25d57e55ddc02
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.