Analogous Mechanistic Features of NH3-SCR over Vanadium Oxide and Copper Zeolite Catalysts

ACS Catalysis ◽  
2021 ◽  
pp. 11180-11192
Author(s):  
Hiroe Kubota ◽  
Takashi Toyao ◽  
Zen Maeno ◽  
Yusuke Inomata ◽  
Toru Murayama ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Zeolite Catalysts ◽  
Nh3 Scr ◽  
Copper Zeolite

NH3-SCR on Fe zeolite catalysts – From model setup to NH3 dosing

2009 ◽  
Vol 154 (1-3) ◽  
pp. 333-340 ◽  
Author(s):  
A. Schuler ◽  
M. Votsmeier ◽  
P. Kiwic ◽  
J. Gieshoff ◽  
W. Hautpmann ◽  
...  
Keyword(s):  
Zeolite Catalysts ◽  
Nh3 Scr ◽  
Model Setup

scholarly journals The Influence of Ce or Mn Doping on Cu-Based Catalysts for De-NOx with NH3-SCR

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Lei Jiang ◽  
Yixi Cai ◽  
Miaomiao Jin ◽  
Zengzan Zhu ◽  
Yinhuan Wang
Keyword(s):  
Low Temperature ◽  
Physicochemical Properties ◽  
Topological Structure ◽  
Zeolite Catalysts ◽  
Incipient Wetness Impregnation ◽  
Impregnation Method ◽  
Performance Tests ◽  
Nh3 Scr ◽  
Temperature Window ◽  
Different Doses

In this study, the de-NOx performance of Cu-based zeolite catalysts supported on topological structure (SSZ-13, BEA, ZSM-5) and loaded with different doses of copper (from 2 to 6 wt.%) was investigated. The preparation of copper-based catalysts adopted the incipient wetness impregnation method. To analyze the physicochemical properties of the catalysts, advanced techniques like BET, XRD, NH3-TPD, H2-TPR, and DRS UV-Vis were used. The performance tests suggested the 4Cu/SSZ-13 catalyst exhibited higher low-temperature activity and wider temperature window. Furthermore, compared with Mn-Cu/SSZ-13, the Ce-Cu/SSZ-13 catalysts exhibited better de-NOx performance.

Bulk Vanadium Oxide versus Conventional V2O5/TiO2: NH3–SCR Catalysts Working at a Low Temperature Below 150 °C

ACS Catalysis ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 9327-9331 ◽  
Author(s):  
Yusuke Inomata ◽  
Shinichi Hata ◽  
Makoto Mino ◽  
Eiji Kiyonaga ◽  
Keiichiro Morita ◽  
...  
Keyword(s):  
Low Temperature ◽  
Vanadium Oxide ◽  
Nh3 Scr ◽  
Scr Catalysts

Tracking mobile active sites and intermediates in NH3-SCR over zeolite catalysts by impedance-based in situ spectroscopy

2019 ◽  
Vol 4 (6) ◽  
pp. 986-994 ◽  
Author(s):  
Peirong Chen ◽  
Valentina Rizzotto ◽  
Kunpeng Xie ◽  
Ulrich Simon
Keyword(s):  
Active Sites ◽  
Zeolite Catalysts ◽  
In Situ Spectroscopy ◽  
Reaction Intermediates ◽  
Nh3 Scr ◽  
Direct Tracking

Impedance-based in situ spectroscopy allows direct tracking of the mobile active sites and reaction intermediates in NH3-SCR over zeolite catalysts.

A dual-template method for the synthesis of bimetallic CuNi/SSZ-13 zeolite catalysts for NH3-SCR reaction

2019 ◽  
Vol 105 ◽  
pp. 203-207 ◽  
Author(s):  
Mengyang Chen ◽  
Qiming Sun ◽  
Xiangguang Yang ◽  
Jihong Yu
Keyword(s):  
Zeolite Catalysts ◽  
Template Method ◽  
Nh3 Scr

XAFS Studies of Copper/ Zeolite Catalysts for NOxReduction

1993 ◽  
Vol 32 (S2) ◽  
pp. 487 ◽  
Author(s):  
Toshiro Nakayama ◽  
Tatsuro Yasumatsu ◽  
Mikako Kokitsu ◽  
Takeshi Tabata ◽  
Hideto Sakane
Keyword(s):  
Zeolite Catalysts ◽  
Copper Zeolite

Characterisation of a Commercial Automotive NH3-SCR Copper–Zeolite Catalyst

2013 ◽  
Vol 56 (1-8) ◽  
pp. 40-44 ◽  
Author(s):  
C. Kieffer ◽  
J. Lavy ◽  
E. Jeudy ◽  
N. Bats ◽  
G. Delahay
Keyword(s):  
Zeolite Catalyst ◽  
Nh3 Scr ◽  
Copper Zeolite

Fe-BEA Zeolite Catalysts for NH3-SCR of NOx

2009 ◽  
Vol 130 (1-2) ◽  
pp. 1-8 ◽  
Author(s):  
Anne Mette Frey ◽  
Selcuk Mert ◽  
Johannes Due-Hansen ◽  
Rasmus Fehrmann ◽  
Claus Hviid Christensen
Keyword(s):  
Zeolite Catalysts ◽  
Bea Zeolite ◽  
Nh3 Scr ◽  
Scr Of Nox
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