Journal ArticleDOI
The chemistry of the NO/NO2–NH3 “fast” SCR reaction over Fe-ZSM5 investigated by transient reaction analysis
Reads0
Chats0
TLDR
In this article, the authors present a systematic study of the chemical steps in the NO/NO2−NH3 fast SCR reaction 2NH3+NO+NO2 → 2N2+3H2O over a commercial Fe-ZSM5 catalyst.About:
This article is published in Journal of Catalysis.The article was published on 2008-06-10. It has received 422 citations till now. The article focuses on the topics: Catalysis.read more
Citations
More filters
Journal ArticleDOI
Low-temperature selective catalytic reduction of NOx with NH3 over metal oxide and zeolite catalysts—A review
TL;DR: In this paper, two types of low-temperature catalysts, the metal oxide catalyst and metal exchanged zeolite catalyst, were reviewed for selective catalytic reduction of NO x with ammonia (NH 3 -SCR) especially at temperature below 200°C.
Journal ArticleDOI
Excellent activity and selectivity of Cu-SSZ-13 in the selective catalytic reduction of NOx with NH3
TL;DR: In this paper, the performance of a Cu ion-exchanged SSZ-13 zeolite in the selective catalytic reduction (SCR) of NO x with NH 3 was observed, in comparison with Cu-beta and ZSM-5 zeolites.
Journal ArticleDOI
Effect of manganese substitution on the structure and activity of iron titanate catalyst for the selective catalytic reduction of NO with NH3
TL;DR: In this article, the selective catalytic reduction (SCR) of NO with NH3 over manganese substituted iron titanate catalysts was investigated and the Mn substitution amounts showed obvious influence on the catalyst structure, redox behavior and NH3/NOx adsorption ability of the catalysts.
Journal ArticleDOI
Catalysis in a Cage: Condition-Dependent Speciation and Dynamics of Exchanged Cu Cations in SSZ-13 Zeolites
Christopher Paolucci,Atish A. Parekh,Ishant Khurana,John R. Di Iorio,Hui Li,Jonatan D. Albarracin Caballero,Arthur J. Shih,Trunojoyo Anggara,W. Nicholas Delgass,Jeffrey T. Miller,Fabio H. Ribeiro,Rajamani Gounder,William F. Schneider +12 more
TL;DR: Experimental and theory together reveal that the Cu sites respond sensitively to exposure conditions, and in particular that Cu species are solvated and mobilized by NH3 under SCR conditions.
Journal ArticleDOI
Structure–activity relationships in NH3-SCR over Cu-SSZ-13 as probed by reaction kinetics and EPR studies
Feng Gao,Eric D. Walter,Eric M. Karp,Jinyong Luo,Russell G. Tonkyn,Ja Hun Kwak,János Szanyi,Charles H. F. Peden +7 more
TL;DR: In this article, the EPR and temperature-programmed reduction (TPR) results were used to identify the locations of the Cu2+ ion locations and the reaction kinetics of the NH3-SCR reaction.
References
More filters
Journal ArticleDOI
Reaction Pathways in the Selective Catalytic Reduction Process with NO and NO2 at Low Temperatures
TL;DR: The low-temperature behavior of the selective catalytic reduction (SCR) process with feed gases containing both NO and NO2 was investigated in this article, where the two main reactions are 4NH3 + 2NO + 2 NO2 → 4N2 + 6H2O and 2NH3+ 2NO2 → NH4NO3 + N2 + H2O.
Journal ArticleDOI
Selective catalytic reduction of NO and NO2 at low temperatures
TL;DR: In this paper, the authors investigated the effect of ammonium nitrate on the SCR reaction in the presence of NO and showed that ammonium Nitrate can lead to the formation of NO 2.
Journal ArticleDOI
Reactivity of NO/NO2–NH3 SCR system for diesel exhaust aftertreatment: Identification of the reaction network as a function of temperature and NO2 feed content
Cristian Ciardelli,Isabella Nova,Enrico Tronconi,Daniel Chatterjee,Brigitte Bandl-Konrad,Michel Weibel,Bernd Krutzsch +6 more
TL;DR: In this article, the NH3-SCR reactivity over a commercial V2O5-WO3/TiO2 catalyst in a wide range of temperatures and NO/NO2 feed ratios was investigated.
Journal ArticleDOI
Selective reduction of NO with Fe-ZSM-5 catalysts of low Fe content: I. Relations between active site structure and catalytic performance
M. Schwidder,M. Santhosh Kumar,Konstantin Klementiev,Marga Martina Pohl,Angelika Brückner,Wolfgang Grünert +5 more
TL;DR: In this paper, the performance of Fe-ZSM-5 catalysts was investigated for selective catalytic reduction (SCR) of NO by isobutane (2000 ppm NO, 1000 ppm NH3, 1% O2, 750,000 h−1).
Journal ArticleDOI
Influence of NO2 on the selective catalytic reduction of NO with ammonia over Fe-ZSM5
Mukundan Devadas,Oliver Kröcher,Martin Elsener,Alexander Wokaun,Nicola Söger,Marcus Pfeifer,Yvonne Demel,Lothar Mussmann +7 more
TL;DR: In this article, the influence of NO2 on the selective catalytic reduction (SCR) of NO with ammonia was studied over Fe-ZSM5 coated on cordierite monolith.