New insight into N2O formation from NH3 oxidation over MnO /TiO2 catalyst

Fuel ◽  
2019 ◽  
Vol 254 ◽  
pp. 115719 ◽  
Author(s):  
Denghui Wang ◽  
Qi Yao ◽  
Chunhui Mou ◽  
Shien Hui ◽  
Yanqing Niu
Keyword(s):  
N2o Formation ◽  
Tio2 Catalyst ◽  
Nh3 Oxidation ◽  
Insight Into

scholarly journals Insight into Platinum Poisoning Effect on Cu-SSZ-13 in Selective Catalytic Reduction of NOx with NH3

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 796
Author(s):  
Huawang Zhao ◽  
Lei Han ◽  
Yujie Wang ◽  
Jiandong Zheng
Keyword(s):  
Catalytic Reduction ◽  
No Oxidation ◽  
Oxidation Reactions ◽  
Hydrothermal Aging ◽  
N2o Formation ◽  
Poisoning Effect ◽  
Nh3 Oxidation ◽  
Reduction Of Nox ◽  
Parallel Reactions ◽  
Insight Into

Platinum’s (Pt) poisoning effect on Cu-SSZ-13 and its regeneration were investigated. The Pt enhanced the parallel reactions, such as NH3 oxidation and NO oxidation reactions, which decreased the deNOx activities. In the temperature range below 330 °C, the deactivation of Cu-SSZ-13 by Pt poisoning was primarily caused by the overconsumption of NH3, due to the enhanced NH3-selective oxidation reaction, while the formation of NOx in NH3 oxidation and NO oxidation into NO2 further aggravated the degradation when the temperature was above 460 °C. The non-selective NH3 oxidation and non-selective NOx catalytic reduction reactions resulted in increased N2O formation over Pt-doped samples. The transformation of Pt0 into PtOx after hydrothermal aging recovered the deNOx activities of the Pt-poisoned samples.

Mechanistic insight into the influence of O2 on N2O formation in the selective catalytic reduction of NO with NH3 over Pd/CeO2 catalyst

2021 ◽  
Author(s):  
Liping Sheng ◽  
Songda Li ◽  
Zhaoxia Ma ◽  
Fei Wang ◽  
Hu He ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
No Reduction ◽  
Catalytic Reduction ◽  
Temperature Dependent ◽  
N2o Formation ◽  
Reduction Of No ◽  
Mechanistic Insight ◽  
Insight Into

O2 greatly affected the pathway for NO reduction over the Pd/CeO2 catalyst and resulted in a temperature-dependent NH3-SCR performance and formation of N2O.

scholarly journals Mechanistic insight into N2O formation during NO reduction by NH3 over Pd/CeO2 catalyst in the absence of O2

2019 ◽  
Vol 40 (7) ◽  
pp. 1070-1077 ◽  
Author(s):  
Liping Sheng ◽  
Zhaoxia Ma ◽  
Shiyuan Chen ◽  
Jinze Lou ◽  
Chengye Li ◽  
...  
Keyword(s):  
No Reduction ◽  
N2o Formation ◽  
Mechanistic Insight ◽  
Insight Into

Effect of CeO2 for a high-efficiency CeO2/WO3–TiO2 catalyst on N2O formation in NH3-SCR: a kinetic study

2016 ◽  
Vol 6 (9) ◽  
pp. 3149-3155 ◽  
Author(s):  
Yang Geng ◽  
Wenpo Shan ◽  
Shangchao Xiong ◽  
Yong Liao ◽  
Shijian Yang ◽  
...  
Keyword(s):  
Kinetic Study ◽  
High Efficiency ◽  
Kinetic Method ◽  
N2o Formation ◽  
Tio2 Catalyst ◽  
Nh3 Scr

The effect of CeO2 for a high-efficiency CeO2/WO3–TiO2 catalyst on N2O formation in NH3-SCR reaction was investigated using a kinetic method.

New insight into simultaneous removal of NO and Hg0 on CeO2-modified V2O5/TiO2 catalyst: A new modification strategy

Fuel ◽  
2019 ◽  
Vol 249 ◽  
pp. 178-187 ◽  
Author(s):  
Yang Yang ◽  
Wenqing Xu ◽  
Jian Wang ◽  
Tingyu Zhu
Keyword(s):  
Simultaneous Removal ◽  
Tio2 Catalyst ◽  
Insight Into
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