A Highly Effective Catalyst of Sm-MnOx for the NH3-SCR of NOx at Low Temperature: Promotional Role of Sm and Its Catalytic Performance

ACS Catalysis ◽  
2015 ◽  
Vol 5 (10) ◽  
pp. 5973-5983 ◽  
Author(s):  
Dongmei Meng ◽  
Wangcheng Zhan ◽  
Yun Guo ◽  
Yanglong Guo ◽  
Li Wang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Catalytic Performance ◽  
Effective Catalyst ◽  
Nh3 Scr ◽  
Highly Effective ◽  
Scr Of Nox

The promotional role of Nd on Mn/TiO2 catalyst for the low-temperature NH3‑SCR of NOx

2019 ◽  
Vol 332 ◽  
pp. 49-58 ◽  
Author(s):  
Jun Huang ◽  
He Huang ◽  
Hongtao Jiang ◽  
Licheng Liu
Keyword(s):  
Low Temperature ◽  
Tio2 Catalyst ◽  
Nh3 Scr ◽  
Scr Of Nox

Catalytic performance of Co–Fe mixed oxide for NH3-SCR reaction and the promotional role of cobalt

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 66169-66179 ◽  
Author(s):  
Changzhi Shao ◽  
Xiaofei Liu ◽  
Dongmei Meng ◽  
Qian Xu ◽  
Yanglong Guo ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Citric Acid ◽  
Low Temperature ◽  
Mixed Oxide ◽  
Catalytic Performance ◽  
Nh3 Scr ◽  
Acid Method ◽  
Scr Of No

Co-modified iron oxide (Co-FeOx) catalysts were prepared by a citric acid method for the low temperature NH3-SCR of NO in the presence of O2.

Improved NH3-SCR deNOx activity and tolerance to H2O & SO2 at low temperature over the NbmCu0.1-mCe0.9Ox catalysts: Role of acidity by niobium doping

Fuel ◽  
2021 ◽  
Vol 303 ◽  
pp. 121239
Author(s):  
Zhiping Zhang ◽  
Yingying Li ◽  
Piaoping Yang ◽  
Yushi Li ◽  
Chen Zhao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Niobium Doping ◽  
Nh3 Scr

CeMn/TiO2 catalysts prepared by different methods for enhanced low-temperature NH3-SCR catalytic performance

2021 ◽  
pp. 116588
Author(s):  
Xianlong Zhang ◽  
Xincheng Zhang ◽  
Xiangjin Yang ◽  
Yazhong Chen ◽  
Xiaorui Hu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Catalytic Performance ◽  
Nh3 Scr

Synergistic effect of VOx and MnOx surface species for improved performance of V2O5/Ce0.5Ti0.5−xMnxO2−δ catalysts in low-temperature NH3-SCR of NO

2018 ◽  
Vol 8 (24) ◽  
pp. 6360-6374 ◽  
Author(s):  
Thanh Huyen Vuong ◽  
Stephan Bartling ◽  
Ursula Bentrup ◽  
Henrik Lund ◽  
Jabor Rabeah ◽  
...  
Keyword(s):  
Low Temperature ◽  
Synergistic Effect ◽  
Catalytic Performance ◽  
Surface Species ◽  
Nh3 Scr ◽  
Redox Couples ◽  
Scr Of No ◽  
Improved Performance

Inserting adjacent Mn3+/Mn2+ and VO3+/VO2+ redox couples in Ce1−xTixO2 improves catalytic performance.

scholarly journals The Effect of Tourmaline on SCR Denitrification Activity of MnOx/TiO2 at Low Temperature

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1020
Author(s):  
Yizhe Helian ◽  
Suping Cui ◽  
Xiaoyu Ma
Keyword(s):  
Low Temperature ◽  
Catalytic Reduction ◽  
Catalytic Performance ◽  
Scr Catalyst ◽  
Highly Efficient ◽  
Nh3 Scr ◽  
Catalytic Material ◽  
Acidic Sites ◽  
Denitrification Activity ◽  
The Stability

Selective catalytic reduction (SCR) technology is the most widely used flue gas denitration technology at present. The stability of a catalyst is the main factor limiting the development of this technology. In this study, an environmentally friendly and highly efficient NH3-SCR catalyst was prepared by coprecipitation method from acidolysis residue of industrial waste and tourmaline. We found that the addition of tourmaline has an important impact on the denitration activity of the catalytic material. The NOx conversion exceeded 97% at 200 °C with the dosage of 10% tourmaline, which is about 7% higher than that without doping. The improvement of catalytic performance was mostly attributed to the permanent electrodes of tourmaline, which effectively promotes the dispersion of MnOx/TiO2 catalytic materials, increases the number of acidic sites and changes the valence distribution of manganese ions in products, which speeds up the diffusion of protons and ions, resulting in the acceleration of redox reaction. These as-developed tourmaline-modified MnOx/TiO2 materials have been demonstrated to be promising as a new type of highly efficient low-temperature NH3-SCR catalyst.

Ti and Si doping as a way to increase low temperature activity of sulfated Ag/Al2O3 in H2-assisted NH3-SCR of NOx

2014 ◽  
Vol 148-149 ◽  
pp. 62-69 ◽  
Author(s):  
Dmitry E. Doronkin ◽  
Sebastian Fogel ◽  
Pär Gabrielsson ◽  
Jan-Dierk Grunwaldt ◽  
Søren Dahl
Keyword(s):  
Low Temperature ◽  
Si Doping ◽  
Nh3 Scr ◽  
Scr Of Nox
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