New Insights into the Mechanism of Synergistic Effect for [CeO2–ZrO2 + H-Beta] CombiCat in NH3–SCR

New Insights into the Mechanism of Synergistic Effect for [CeO2–ZrO2 + H-Beta] CombiCat in NH3–SCR Научная публикация

Журнал

Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028

Вых. Данные

Год: 2016, Том: 59, Номер: 10-12, Страницы: 919-924 Страниц : 6 DOI: 10.1007/s11244-016-0569-z

Авторы

Mytareva Alina I. ¹ , Stakheev Alexander Yu. ¹ , Baeva Galina N. ¹ , Bokarev Dmitriy A. ¹ , Kustov Arkady L. ² , Thøgersen Joakim R. ²

Организации

1	Zelinsky Institute of Organic Chemistry, Leninsky Pr. 47, Moscow, Russia, 119991
2	Haldor Topsøe A/S, Haldor Topsøes Allé 1, 2800, Kongens Lyngby, Denmark

NH3–SCR performance of the combined catalyst (CombiCats) prepared by mechanical mixing of CeO2–ZrO2 and H-Beta is studied in details. It was shown, that individual standard SCR activities of CeO2–ZrO2 and H-Beta are negligible, while their mixing results in the significant improvement of NOx conversion. The absence of standard SCR activity of individual components enabled us to estimate the contribution of fast SCR, NO and NH3 oxidation reactions to the overall process on CombiCat. Comparison of catalytic data obtained for layered configurations and CombiCats with various CeO2–ZrO2/H-Beta ratios also allowed us to determine the rate-limiting step and role of each component in the process.

Mytareva A.I. , Stakheev A.Y. , Baeva G.N. , Bokarev D.A. , Kustov A.L. , Thøgersen J.R.
New Insights into the Mechanism of Synergistic Effect for [CeO2–ZrO2 + H-Beta] CombiCat in NH3–SCR
Topics in Catalysis. 2016. V.59. N10-12. P.919-924. DOI: 10.1007/s11244-016-0569-z WOS Scopus OpenAlex

≡ Web of science:	WOS:000379830300014
≡ Scopus:	2-s2.0-84977178233
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