DIESEL EXHAUST EMISSION CONTROL BY SELECTIVE CATALYTIC REDUCTION OF NOX WITH AMMONIA ON METAL/ZEOLITE CATALYSTS

2009 ◽  
Vol 10 (1-4) ◽  
pp. 103-120
Author(s):  
Mona Lisa Moura de Oliveira ◽  
R. Moreno-Tost ◽  
Carla M. Silva ◽  
Tiago L. Farias ◽  
E. Rodriguez-Castellon ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Diesel Exhaust ◽  
Catalytic Reduction ◽  
Emission Control ◽  
Zeolite Catalysts ◽  
Exhaust Emission ◽  
Reduction Of Nox ◽  
Diesel Exhaust Emission Control

Recent progress of metal-exchanged zeolites for selective catalytic reduction of NOx with NH3 in diesel exhaust

Fuel ◽  
2021 ◽  
Vol 305 ◽  
pp. 121482
Author(s):  
Xiaofeng Wang ◽  
Yang Xu ◽  
Zhe Zhao ◽  
Jianbin Liao ◽  
Chen Chen ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Diesel Exhaust ◽  
Recent Progress ◽  
Catalytic Reduction ◽  
Reduction Of Nox

Computational Insights into the Mechanism of the Selective Catalytic Reduction of NOx: Fe- Versus Cu-Doped Zeolite Catalysts

2019 ◽  
Author(s):  
Julian Rudolph ◽  
Christoph R. Jacob
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Reaction Pathways ◽  
Half Cycle ◽  
Computational Results ◽  
Comprehensive Picture ◽  
Cu Catalysts ◽  
Reduction Of Nox

<div> <div> <div> <p>We computationally investigate the mechanism of the reduction half-cycle of the selective catalytic reduction (SCR) of nitrogen oxides with ammonia. We compare both Fe- and Cu-doped zeolite catalysts and aim at exploring all accessible reaction pathways. From our calculations, a comprehensive picture emerges that unifies sev- eral previous mechanistic proposals. We find that both for Fe and for Cu catalysts, different reaction pathways are feasible, but some of the possible reaction pathways differ in these two cases. Our computational results provide a basis for the inter- pretation of in situ spectroscopic investigations that can possibly distinguish the different mechanistic pathways. </p> </div> </div> </div>

Ce-ZSM-5 catalysts for the selective catalytic reduction of NOx in stationary diesel exhaust gas

1999 ◽  
Vol 21 (3) ◽  
pp. 203-213 ◽  
Author(s):  
W.E.J. van Kooten ◽  
B. Liang ◽  
H.C. Krijnsen ◽  
O.L. Oudshoorn ◽  
H.P.A. Calis ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Diesel Exhaust ◽  
Catalytic Reduction ◽  
Exhaust Gas ◽  
Reduction Of Nox

A Unique Titania-Based SCR NOx Catalyst for Diesel Exhaust Emission Control

2005 ◽  
Author(s):  
Ikuhisa Hamada ◽  
Yasuyoshi Kato ◽  
Naomi Imada ◽  
Hirohumi Kikkawa ◽  
Akihiro Yamada
Keyword(s):  
Diesel Exhaust ◽  
Emission Control ◽  
Exhaust Emission ◽  
Diesel Exhaust Emission Control

Operando Spatially- and Time-Resolved XAS Study on Zeolite Catalysts for Selective Catalytic Reduction of NOx by NH3

2014 ◽  
Vol 118 (19) ◽  
pp. 10204-10212 ◽  
Author(s):  
Dmitry E. Doronkin ◽  
Maria Casapu ◽  
Tobias Günter ◽  
Oliver Müller ◽  
Ronald Frahm ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Time Resolved ◽  
Reduction Of Nox

Recent advances in copper-based zeolite catalysts with low-temperature activity for the selective catalytic reduction of NOx with hydrocarbons

2020 ◽  
Vol 44 (3) ◽  
pp. 817-831 ◽  
Author(s):  
Junqiang Xu ◽  
Yahua Qin ◽  
Honglin Wang ◽  
Fang Guo ◽  
Jiaqing Xie
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Design Strategies ◽  
Recent Advances ◽  
Reduction Of Nox

This paper highlights the design strategies of the copper-based zeolite catalysts with excellent catalytic activity at low temperature for HC-SCR.

Local dynamics of copper active sites in zeolite catalysts for selective catalytic reduction of NOx with NH3

2018 ◽  
Vol 237 ◽  
pp. 263-272 ◽  
Author(s):  
Peirong Chen ◽  
Abhishek Khetan ◽  
Magdalena Jabłońska ◽  
Johannes Simböck ◽  
Martin Muhler ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Active Sites ◽  
Catalytic Reduction ◽  
Zeolite Catalysts ◽  
Local Dynamics ◽  
Reduction Of Nox
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