Novel holmium-modified Fe-Mn/TiO2 catalysts with a broad temperature window and high sulfur dioxide tolerance for low-temperature SCR

2017 ◽  
Vol 88 ◽  
pp. 64-67 ◽  
Author(s):  
Yiwen Zhu ◽  
Yaping Zhang ◽  
Rui Xiao ◽  
Tianjiao Huang ◽  
Kai Shen
Keyword(s):  
Sulfur Dioxide ◽  
Low Temperature ◽  
Temperature Window ◽  
Low Temperature Scr

Facile and template-free fabrication of mesoporous 3D nanosphere-like MnxCo3−xO4 as highly effective catalysts for low temperature SCR of NOx with NH3

2018 ◽  
Vol 6 (7) ◽  
pp. 2952-2963 ◽  
Author(s):  
Xiaonan Hu ◽  
Lei Huang ◽  
Jianping Zhang ◽  
Hongrui Li ◽  
Kaiwen Zha ◽  
...  
Keyword(s):  
Low Temperature ◽  
Formation Mechanism ◽  
Operating Temperature ◽  
Synthesis Conditions ◽  
Highly Effective ◽  
Temperature Window ◽  
Template Free ◽  
Low Temperature Scr ◽  
Scr Of Nox

Mesoporous 3D nanosphere-like MnxCo3−xO4 was obtained via a template-free method. The formation mechanism was proposed and the synthesis conditions were carefully investigated. The operating temperature window was 75–325 °C when the NOx conversion was above 80%.

Fe and Mn mixed oxide catalysts supported on Sn-modified TiO2 for the selective catalytic reduction of NO with NH3 at low temperature

2022 ◽  
Author(s):  
Zhitao Han ◽  
Huan Du ◽  
Duo Xu ◽  
Yu Gao ◽  
Shaolong Yang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Catalytic Reduction ◽  
Oxide Catalysts ◽  
Reduction Of No ◽  
Sn Doping ◽  
Mixed Oxide Catalysts ◽  
Fe And Mn ◽  
Low Temperature Scr

FeMn/SnxTiO2 catalysts were synthesized by introducing Sn as an additive to modify TiO2 supports, and the Sn doping could improve the SO2 tolerance and low-temperature SCR activity significantly.

NO reduction using low-temperature SCR assisted by a DBD method

2017 ◽  
Vol 20 (1) ◽  
pp. 014002 ◽  
Author(s):  
Yanghaichao LIU ◽  
Renxi ZHANG ◽  
Huiqi HOU ◽  
Shanping CHEN ◽  
Ruina ZHANG
Keyword(s):  
Low Temperature ◽  
No Reduction ◽  
Low Temperature Scr

A comparative study of modified cotton biochar and activated carbon based catalysts in low temperature SCR

Fuel ◽  
2015 ◽  
Vol 156 ◽  
pp. 47-53 ◽  
Author(s):  
Boxiong Shen ◽  
Jianhong Chen ◽  
Shiji Yue ◽  
Guoliang Li
Keyword(s):  
Activated Carbon ◽  
Low Temperature ◽  
Comparative Study ◽  
Low Temperature Scr ◽  
Carbon Based

Advanced MnOx/TiO2 Catalyst with Preferentially Exposed Anatase {001} Facet for Low-Temperature SCR of NO

ACS Catalysis ◽  
2016 ◽  
Vol 6 (9) ◽  
pp. 5807-5815 ◽  
Author(s):  
Shengcai Deng ◽  
Tingting Meng ◽  
Bolian Xu ◽  
Fei Gao ◽  
Yuanhua Ding ◽  
...  
Keyword(s):  
Low Temperature ◽  
Tio2 Catalyst ◽  
Scr Of No ◽  
Low Temperature Scr

Experimental Study on Preparation and Operating Conditions over a Promising Monolithic Catalysts for NOx Removal: MnOx/TiO2/Cordierite

2017 ◽  
Vol 898 ◽  
pp. 1905-1915 ◽  
Author(s):  
Kai Qi ◽  
Jun Lin Xie ◽  
Feng Xiang Li ◽  
Feng He
Keyword(s):  
Low Temperature ◽  
Catalytic Reduction ◽  
Sol Gel ◽  
Operating Conditions ◽  
Molar Ratio ◽  
Impregnation Method ◽  
Scope Of Application ◽  
Catalyst Dosage ◽  
Cordierite Honeycomb ◽  
Low Temperature Scr

The samples of MnOx/TiO2 catalysts supported on cordierite honeycomb ceramics were prepared by a sol-gel-impregnation method, and evaluated for low-temperature (353-473 K) selective catalytic reduction (SCR) of NOx with NH3. The influences of pretreatment on cordierite and catalyst dosage were investigated at first and optimized as follows: pickling for cordierite honeycomb ceramics with 1 mol/L HNO3 for 3 h prior to loading procedure as well as the catalyst dosage of 3-5 wt.%. The activity results indicated that there was an optimum working condition for MnOx/TiO2/cordierite catalysts: NH3/NO molar ratio=1.1, [O2]=3 vol.%, GHSV=5514 h-1, the highest activity of nearly 100% NO conversion could be obtained. As a comparison, the performances of commercialized vanadium-based honeycomb catalyst were also employed, which revealed the narrower scope of application of GHSV and the higher active temperature window. In conclusion, it turns out that the prepared MnOx/TiO2/cordierite catalysts are more applicable as a low-temperature SCR catalyst for NOx removal in a more complicated application environment.

The promotion effect of Fe on CeZr2O x catalyst for the low-temperature SCR of NO x by NH3

2018 ◽  
Vol 44 (5) ◽  
pp. 3455-3474 ◽  
Author(s):  
Xiao Sun ◽  
Rui-tang Guo ◽  
Ming-yuan Li ◽  
Peng Sun ◽  
Wei-guo Pan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Promotion Effect ◽  
Scr Of No ◽  
Low Temperature Scr
Sign in / Sign up

Export Citation Format

Share Document