A New Strategy for Improving the Efficiency of Low-temperature Selective Catalytic Reduction of NOx with CH4via the Combination of Non-thermal Plasma and Ag2O/TiO2 Photocatalyst

2019 ◽  
Vol 35 (6) ◽  
pp. 1062-1069 ◽  
Author(s):  
Hui Wang ◽  
Jiafeng Wang ◽  
Lei Zhang ◽  
Qinqin Yu ◽  
Zewen Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Thermal Plasma ◽  
Catalytic Reduction ◽  
Tio2 Photocatalyst ◽  
New Strategy ◽  
Reduction Of Nox ◽  
Non Thermal Plasma

scholarly journals Selective Catalytic Reduction of NO by NH3 Using a Combination of Non-Thermal Plasma and Mn-Cu/ZSM5 Catalyst

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1044
Author(s):  
Tao Zhu ◽  
Xing Zhang ◽  
Wenfeng Niu ◽  
Yatao Liu ◽  
Bo Yuan ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Removal Efficiency ◽  
Thermal Plasma ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
High Energy ◽  
No Removal ◽  
Non Thermal Plasma

Dielectric barrier discharge (DBD) could generate non-thermal plasma (NTP) with the advantage of fast reactivity and high energy under atmosphere pressure and low-temperature. The presented work investigated the selective catalytic reduction (SCR) of nitric oxide (NO) using a combination of NTP and an Mn-Cu/ZSM5 catalyst with ammonia (NH3) as a reductant. The experimental results illustrate that the plasma-assisted SCR process enhances the low-temperature catalytic performance of the Mn-Cu/ZSM5 catalyst significantly, and it exhibits an obvious improvement in the NO removal efficiency. The reaction temperature is maintained at 200 °C in order to simulate the exhaust temperature of diesel engine, and the 10% Mn-8% Cu/ZSM5 catalyst shows the highest NO removal performance with about 93.89% at an energy density of 500 J L−1 and the selectivity to N2 is almost 99%. The voltage, frequency and energy density have a positive correlation to NO removal efficiency, which is positively correlated with the power of NTP system. In contrast, the O2 concentration has a negative correlation to the NO removal, and the NO removal efficiency cannot be improved when the NO removal process reaches reaction equilibrium in the NTP system.

Cerium modified MnTiOx/attapulgite catalyst for low-temperature selective catalytic reduction of NOx with NH3

2018 ◽  
Vol 33 (21) ◽  
pp. 3559-3569 ◽  
Author(s):  
Xiaoyan Huang ◽  
Aijuan Xie ◽  
Jiayi Wu ◽  
Linjing Xu ◽  
Shiping Luo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of Nox ◽  
Image Position

Abstract

Influence of transition metal (Fe, Co, and Ag) doping on the MnOx–CeO2/Ti-bearing blast furnace slag catalyst for selective catalytic reduction of NOx with NH3 at low temperature

2017 ◽  
Vol 41 (19) ◽  
pp. 11299-11307 ◽  
Author(s):  
Rong Liu ◽  
Yifan Xu ◽  
Fei Ye ◽  
Feng Jia ◽  
Rui Xu
Keyword(s):  
Blast Furnace ◽  
Low Temperature ◽  
Transition Metal ◽  
Solid Waste ◽  
Selective Catalytic Reduction ◽  
Blast Furnace Slag ◽  
Catalytic Reduction ◽  
Industrial Solid Waste ◽  
Reduction Of Nox ◽  
Furnace Slag

Mn–Ce based catalysts supported on Ti-bearing blast furnace slag (industrial solid waste) and the doping of transition metals were studied.

scholarly journals A review of Mn-containing oxide catalysts for low temperature selective catalytic reduction of NOx with NH3: reaction mechanism and catalyst deactivation

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26226-26242 ◽  
Author(s):  
Shengen Zhang ◽  
Bolin Zhang ◽  
Bo Liu ◽  
Shuailing Sun
Keyword(s):  
Reaction Mechanism ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalyst Deactivation ◽  
Catalytic Reduction ◽  
Oxide Catalysts ◽  
Scr Catalysts ◽  
Reduction Of Nox

The reactions over Mn-containing selective catalytic reduction (SCR) catalysts.

Low-temperature Fe–MnO2 nanotube catalysts for the selective catalytic reduction of NOx with NH3

2021 ◽  
Vol 11 (19) ◽  
pp. 6553-6563
Author(s):  
Hao Fan ◽  
Jie Fan ◽  
Tian Chang ◽  
Xiuru Wang ◽  
Xin Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Reduction Of Nox

Fe improved the reducibility of Mn sites and reduced the oxidizing properties of bridging oxygen.

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