A Kinetic Model for the Selective Catalytic Reduction of NOxwith NH3over an Fe−zeolite Catalyst

2010 ◽  
Vol 49 (1) ◽  
pp. 39-52 ◽  
Author(s):  
Hanna Sjövall ◽  
Richard J. Blint ◽  
Ashok Gopinath ◽  
Louise Olsson
Keyword(s):  
Kinetic Model ◽  
Selective Catalytic Reduction ◽  
Zeolite Catalyst ◽  
Catalytic Reduction

scholarly journals Cu- and Fe-speciation in a composite zeolite catalyst for selective catalytic reduction of NOx: insights from operando XAS

2021 ◽  
Author(s):  
Ilia A. Pankin ◽  
Houeida Issa Hamoud ◽  
Kirill A. Lomachenko ◽  
Søren Birk Rasmussen ◽  
Andrea Martini ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Absorption Spectroscopy ◽  
Zeolite Catalyst ◽  
Catalytic Reduction ◽  
Mechanical Mixture ◽  
X Ray ◽  
Fe Speciation ◽  
Reduction Of Nox ◽  
Operando Xas ◽  
X Ray Absorption

Cu-SAPO-34 (Cu-CZC) and Fe-mordenite (Fe-MOR) and their mechanical mixture (50 : 50) have been exhaustively investigated by means of operando X-ray absorption spectroscopy under NH3-SCR conditions.

A kinetic model of the hydrogen assisted selective catalytic reduction of NO with ammonia over Ag/Al2O3

AIChE Journal ◽  
2013 ◽  
Vol 59 (11) ◽  
pp. 4325-4333 ◽  
Author(s):  
Stefanie Tamm ◽  
Louise Olsson ◽  
Sebastian Fogel ◽  
Pär Gabrielsson ◽  
Magnus Skoglundh
Keyword(s):  
Kinetic Model ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No

Kinetic Experiments and Modeling of a Complex DeNOxSystem:  Decane Selective Catalytic Reduction of NOxin the Gas Phase and over an Fe-MFI Type Zeolite Catalyst

2005 ◽  
Vol 44 (13) ◽  
pp. 4523-4533 ◽  
Author(s):  
Leonid Vradman ◽  
Moti Herskowitz ◽  
Libor Čapek ◽  
Blanka Wichterlová ◽  
Roald Brosius ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Gas Phase ◽  
Zeolite Catalyst ◽  
Catalytic Reduction ◽  
Type Zeolite

scholarly journals Experimental and Modeling Study of CO-Selective Catalytic Reduction of NO Over Perovskite-Type Nanocatalysts

2019 ◽  
Vol 64 (1) ◽  
pp. 46-53 ◽  
Author(s):  
Shiva Abedi ◽  
Aligholi Niaei ◽  
Najaf Namjou ◽  
Darioush Salari ◽  
Ali Tarjomannejad ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Selective Catalytic Reduction ◽  
Flow Reactor ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Plug Flow ◽  
Correlation Coefficients ◽  
Reduction Of No ◽  
Proposed Model ◽  
Perovskite Type

In this work LaFeO3, LaFe0.7Mn0.3O3 and LaMn0.7Fe0.3O3 nanocatalysts with perovskite structures have been synthesized by sol-gel method. The selective catalytic reduction of NO with CO (CO-SCR) using synthesized nanocatalysts was investigated in a plug flow reactor. The kinetics of CO-SCR process was studied and three kinetic models were used to describe the behavior of the system, including power low model (PLM), kinetic model 1 (KM1) and kinetic model 2 (KM2). The KM1 was the best model with correlation coefficients of 0.9924, 0.9911 and 0.9902 and the sum of squared errors of 0.0504, 0.0488 and 0.0397, for LaFeO3, LaFe0.7Mn0.3O3 and LaFe0.3Mn0.7O3 catalysts, respectively. By comparing experimental results with the predicted results of the KM1, it was found that the proposed model can predict the performance of catalysts in the CO-SCR process with considerable precision. The structure and morphology of perovskite-type oxides were characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively.

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