Accessible Requires Authentication Published by De Gruyter August 22, 2013

Direct Decomposition of N2O Emitted from Nitric Acid Plant Tail Gases Using Noble Metal Supported Mordenite-Zeolite Catalysts∗

Direkter Abbau des N2O-Ausstosses in Salpertersäurefabriken mittels Edelmetall-unterstützter Mordenit-Zeolit-Katalysatoren
Byung-Chan Kwon, Sung-Su Cho, Minhye Seo, Sungkyu Lee and Jinho Song
From the journal Materials Testing


Mordenite based catalysts for direct decomposition of N2O have been successfully prepared and their direct decomposition performance characterized at the operating temperature of 300–400 °C commonly encountered in the nitric acid plants tail gases. The catalyst was prepared in 2 steps: 1. Precursor wet ion exchange, 2. Precursor impregnation. In addition to the previous contribution, it is shown here that the bimetallic Rh-, Pd-, Ir-Fe-MOR catalysts thus prepared exhibited an excellent N2O decomposition performance: total conversion efficiency of Rh-Fe-MOR catalyst has been achieved at 400 °C and between 7500 h−1 and 10 000 h−1 space velocity.


Mordenit-basierte Katalysatoren für den direkten Abbau von N2O wurden erfolgreich hergestellt und ihre Direktabbau-Fähigkeit wurde für Betriebstemperaturen zwischen 300–400 °C, die üblicherweise bei den Ausstoßgasen von Salpetersäurefabriken herrschen, charakterisiert. Der Katalysator wurde in zwei Schritten hergestellt: 1. Precursor-Nass-Ionenaustausch, 2. Precursor-Imprägnierung. In Ergänzung zum vorhergehenden Beitrag wird hier dargestellt, dass die so hergestellten bimetallischen Rh-, Pd-, Ir-Fe-MOR Katalysatoren eine exzellente Abbaufähigkeit hinsichtlich des N2O-Abbaus zeigten: Die totale Konversion ergab sich bei 400 °C und einer Raumgeschwindigkeit zwischen 7500 h−1 und 10 000 h−1.

Work leading to this manuscript was performed at Institute for Advanced Engineering (IAE) and all of the legal claims for the research belongs to IAE.


1 United Nations Framework Convention on Climate Change (UNFCCC): Search in Google Scholar

2 IPCC, Intergovernmental panel on climate change guidelines for national greenhouse gas inventories (2006): Search in Google Scholar

3 J.Perez-Ramirez, F.Kapteijn, G.Mul, X. D.Xu, J. A.Moulijn: Ex-framework Fe-ZSM-5 for control of N2O in tail-gases, Catal. Today76 (2002), pp. 557410.1016/S0920-5861(02)00208-0 Search in Google Scholar

4 R. Q.Long, R. T.Yang: Catalytic performance of Fe–ZSM-5 catalysts for selective catalytic reduction of nitric oxide by ammonia, Journal of Catalysis188 (1999), pp. 33233910.1006/jcat.1999.2674 Search in Google Scholar

5 A.Guzmann-Vargas, G.Delahay, B.Coq: Catalytic decomposition of N2O and catalytic reduction of N2O and N2O + NO by NH3 in the presence of O2 over Fe-zeolite, Appl. Catal. B42 (2003), pp. 36937910.1016/S0926-3373(02)00268-0 Search in Google Scholar

6 G. B. F.Seijger, A.van den Berg, R.Riva, K.Krishna, H. P. A.Calis, H.van Bekkum, C. M.van den Bleek: In-situ preparation of ferrierite coatings on cordierite honeycomb supports, Applied Catalysis A236 (2002), pp. 18720310.1016/S0926-860X(02)00286-7 Search in Google Scholar

7 F.Heinrich, C.Schmidt, C.Löffler, M.Menzel, W.Grünert: Fe-ZSM-5 catalysts for the selective reduction of NO by isobutane—the problem of the active sites, Journal of Catalysis212 (2002), pp. 15717210.1006/jcat.2002.3775 Search in Google Scholar

8 H. Y.Chen, W. M. H.Sachtler: Activity and durability of Fe-ZSM-5 catalysts for lean burn NOx reduction in the presence of water vapor, Catal. Today42 (1998), pp. 738310.1016/S0920-5861(98)00078-9 Search in Google Scholar

9 H.Xia, K.Sun, Z.Liu, Z.Feng, P.Ying, C.Li: The promotional effect of NO on N2O decomposition over the bi-nuclear Fe sites in Fe-ZSM-5, Journal of Catalysis270 (2010), pp. 10310910.1016/j.jcat.2009.12.014 Search in Google Scholar

10 G.Centi, B.Montanari, S.Perathoner, A.Vaccari: Catalytic decomposition of N2O over noble and transition metal containing oxides and zeolites: Role of some variables on reactivity, Catal. Today35 (1997), pp. 11312010.1016/S0920-5861(96)00137-X Search in Google Scholar

11 G.Centi, F.Vazzana, M.Marella, M.Tomaselli, M.Mantegazza: Novel catalysts and catalytic technologies for N2O removal from industrial emissions containing O2, H2O and SO2, Adv. Environ. Res.4 (2000), pp. 32533810.1016/S1093-0191(00)00032-0 Search in Google Scholar

12 G. D.Pirngruber, M.Luechinger, P. K.Roy, A.Cecchetto, P.Smirniotis: N2O decomposition over iron-containing zeolites prepared by different methods: A comparison of the reaction mechanism, Journal of Catalysis224 (2004), pp. 42944010.1016/j.jcat.2004.03.031 Search in Google Scholar

Published Online: 2013-08-22
Published in Print: 2013-04-02

© 2013, Carl Hanser Verlag, München