Enhancing Water Resistance of a Mn-Based Catalyst for Low Temperature Selective Catalytic Reduction Reaction by Modifying Super Hydrophobic Layers

2019 ◽  
Vol 11 (40) ◽  
pp. 36598-36606 ◽  
Author(s):  
Guodong Zhang ◽  
Xiaosheng Huang ◽  
Zhicheng Tang
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Water Resistance ◽  
Catalytic Reduction ◽  
Reduction Reaction ◽  
Selective Catalytic Reduction Reaction

scholarly journals Sulfur and Water Resistance of Mn-Based Catalysts for Low-Temperature Selective Catalytic Reduction of NOx: A Review

Catalysts ◽  
2018 ◽  
Vol 8 (1) ◽  
pp. 11 ◽  
Author(s):  
Chen Gao ◽  
Jian-Wen Shi ◽  
Zhaoyang Fan ◽  
Ge Gao ◽  
Chunming Niu
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Water Resistance ◽  
Catalytic Reduction ◽  
Reduction Of Nox

scholarly journals Low-Temperature Selective Catalytic Reduction of NOx on MnO2 Octahedral Molecular Sieves (OMS-2) Doped with Co

Catalysts ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 396 ◽  
Author(s):  
Laichao Li ◽  
Yusi Wang ◽  
Li Zhang ◽  
Yuxi Yu ◽  
Hanbing He
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Molecular Sieves ◽  
Catalytic Reduction ◽  
Selective Reduction ◽  
Reduction Reaction ◽  
Sulfur Resistance ◽  
No Conversion ◽  
Reduction Of Nox ◽  
Doping Ratio

To improve NO conversion and sulfur resistance of low-temperature NO-CO selective catalytic reduction (SCR), it is urgent to seek new catalyst materials. Herein, using the pre-doping method, Cox-OMS-2 with different ratios of cobalt (Co) was obtained during hydrothermal synthesis of OMS-2 molecular sieves (where x represents the doping ratio of Co, i.e., x = 0.1, 0.2, 0.3, 0.4). Co was found to very efficiently intercalate into the crystal structure of OMS-2. Co and Mn work together to promote the selective reduction reaction of NOx;; the NO conversion of Co0.3-OMS-2 was the highest among all samples. Specifically, NO conversion at 50 °C increased from 72% for undoped OMS-2 to 90% for Co0.3-OMS-2. Moreover, due to the incorporation of Co, the latter also showed better sulfur resistance.

Modeling and Simulation of Selective Catalytic Reduction for Flue Gas Denitration in Power Plants

2011 ◽  
Vol 383-390 ◽  
pp. 6580-6586
Author(s):  
Bo Xiong Shen ◽  
Ning Zhao ◽  
Ting Liu ◽  
Feng Peng Wu ◽  
Chen Zuo
Keyword(s):  
Selective Catalytic Reduction ◽  
Power Plants ◽  
Ammonia Oxidation ◽  
Catalytic Reduction ◽  
Kinetic Mechanism ◽  
Reduction Reaction ◽  
Catalyst Structure ◽  
Scr Catalyst ◽  
Selective Catalytic Reduction Reaction ◽  
Catalyst Type

Based on Eley-Rideal kinetic mechanism, one dimensional mathematical model for selective catalytic reduction reaction was established, in order to simulate the SCR process in the catalyst channel. The thermal effect on the reaction and the side effect of ammonia oxidation in the channel were considered simultaneously in the modeling. The model was testified to be reliable by compared with the experimental data. By the model, the concentration and temperature distributions in the channel were simulated. The effects of catalyst structure parameters, such as the pitch, the shape of catalyst channel and the monolithic catalyst type, on de-NOX efficiency were studied emphatically. The simulation results would be as an important reference for the design of SCR catalyst in the practical application.

Effect of Fe on the Selective Catalytic Reduction of NO by NH3 at Low Temperature over Mn/CeO2-TiO2 Catalyst

2012 ◽  
Vol 27 (5) ◽  
pp. 495-500 ◽  
Author(s):  
Da-Wang WU ◽  
Qiu-Lin ZHANG ◽  
Tao LIN ◽  
Mao-Chu GONG ◽  
Yao-Qiang CHEN
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of No
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