A new insight into the promotional effect of nitrogen-doping in activated carbon for selective catalytic reduction of NOX with NH3

2020 ◽  
Vol 740 ◽  
pp. 140158 ◽  
Author(s):  
Qiaoyan Li ◽  
Yaqin Hou ◽  
Ning Xiang ◽  
Yongjin Liu ◽  
Zhanggen Huang
Keyword(s):  
Activated Carbon ◽  
Selective Catalytic Reduction ◽  
Nitrogen Doping ◽  
Catalytic Reduction ◽  
Promotional Effect ◽  
Reduction Of Nox ◽  
Insight Into

scholarly journals The Enhanced Performance of N-Modified Activated Carbon Promoted with Ce in Selective Catalytic Reduction of NOx with NH3

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1423
Author(s):  
Marwa Saad ◽  
Agnieszka Szymaszek ◽  
Anna Białas ◽  
Bogdan Samojeden ◽  
Monika Motak
Keyword(s):  
Catalytic Activity ◽  
Activated Carbon ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Reduction Mechanism ◽  
Modified Activated Carbon ◽  
Oxidation Reduction ◽  
Reduction Of Nox

The goal of the study was to modify activated carbon (AC) with nitrogen groups and ceria and to test the obtained materials in low temperature selective catalytic reduction of nitrogen oxides. For that purpose, the starting AC was oxidized with HNO3 of various concentrations, modified with urea and doped with 0.5 wt.% of Ce. It was observed that the increased concentration of acid influenced the catalytic activity, since textural and surface chemistry of activated carbon was changed. The most active sample was that modified with 14 M HNO3 and it reached 96% of NO conversion at 300 °C. Additionally, the addition of Ce improved the catalytic performance of modified AC, and NO was reduced according to oxidation–reduction mechanism, characteristic for supported metal oxides. Nevertheless, the samples promoted with Ce emitted significantly higher amount of CO2 comparing to the non-promoted ones.

Insight into the Potassium Poisoning Effect for Selective Catalytic Reduction of NOx with NH3 over Fe/Beta

ACS Catalysis ◽  
2021 ◽  
pp. 14727-14739
Author(s):  
Jixing Liu ◽  
Huifang Cheng ◽  
Huiling Zheng ◽  
Lu Zhang ◽  
Bing Liu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Poisoning Effect ◽  
Reduction Of Nox ◽  
Insight Into

Promotional Effect of Molybdenum Additives on Catalytic Performance of CeO2/Al2O3 for Selective Catalytic Reduction of NOx

2016 ◽  
Vol 146 (7) ◽  
pp. 1221-1230 ◽  
Author(s):  
Wei Yan ◽  
Yuesong Shen ◽  
Shemin Zhu ◽  
Qijie Jin ◽  
Youlin Liu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Promotional Effect ◽  
Reduction Of Nox
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