Effects of hydrothermal aging at high and low temperatures on the selective catalytic reduction of NOx with NH3 over Cu/SAPO-34

2019 ◽  
Vol 45 (4) ◽  
pp. 2023-2044 ◽  
Author(s):  
Jin Cheng ◽  
Shuai Han ◽  
Qing Ye ◽  
Shuiyuan Cheng ◽  
Tianfang Kang ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Hydrothermal Aging ◽  
Reduction Of Nox ◽  
High And Low Temperatures

Highly dispersed MnOx–FeOx supported by silicalite-1 for the selective catalytic reduction of NOx with NH3 at low temperatures

2020 ◽  
Vol 10 (16) ◽  
pp. 5525-5534 ◽  
Author(s):  
Jialiang Gu ◽  
Bingjun Zhu ◽  
Rudi Duan ◽  
Yan Chen ◽  
Shaoxin Wang ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Highly Dispersed ◽  
Reduction Of Nox

MnOx–FeOx-Loaded silicalite-1 catalysts exhibit high NOx conversion at low temperatures.

Selective catalytic reduction of NOx with NH3 over Mn-Ce mixed oxide catalyst at low temperatures

2013 ◽  
Vol 216 ◽  
pp. 76-81 ◽  
Author(s):  
Zhiming Liu ◽  
Yang Yi ◽  
Shaoxuan Zhang ◽  
Tianle Zhu ◽  
Junzhi Zhu ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Low Temperatures ◽  
Oxide Catalyst ◽  
Catalytic Reduction ◽  
Mixed Oxide Catalyst ◽  
Reduction Of Nox

scholarly journals Effect of hydrothermal aging temperature on a Cu-SSZ-13/H-SAPO-34 composite for the selective catalytic reduction of NOx by NH3

RSC Advances ◽  
2021 ◽  
Vol 11 (53) ◽  
pp. 33334-33343
Author(s):  
Huawang Zhao ◽  
Mimi Lin ◽  
Yujie Wang ◽  
Jiandong Zheng
Keyword(s):  
Selective Catalytic Reduction ◽  
Aging Temperature ◽  
Catalytic Reduction ◽  
Hydrothermal Aging ◽  
Reduction Of Nox

Effect of aging temperature on SSZ-SAPO composites.

scholarly journals Structural and kinetic changes to small-pore Cu-zeolites after hydrothermal aging treatments and selective catalytic reduction of NOx with ammonia

2017 ◽  
Vol 2 (2) ◽  
pp. 168-179 ◽  
Author(s):  
Jonatan D. Albarracin-Caballero ◽  
Ishant Khurana ◽  
John R. Di Iorio ◽  
Arthur J. Shih ◽  
Joel E. Schmidt ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Hydrothermal Aging ◽  
Small Pore ◽  
Reduction Of Nox

Cu in aged zeolites changes structure during SCR.

scholarly journals The Latest Research Progress of NH3-SCR in the SO2 Resistance of the Catalyst in Low Temperatures for Selective Catalytic Reduction of NOx

Catalysts ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1034 ◽  
Author(s):  
Caixia Liu ◽  
Huijun Wang ◽  
Ziyin Zhang ◽  
Qingling Liu
Keyword(s):  
Selective Catalytic Reduction ◽  
Low Temperatures ◽  
Catalytic Reduction ◽  
Complex Oxide ◽  
Research Progress ◽  
Preparation Methods ◽  
Nh3 Scr ◽  
So2 Resistance ◽  
Reduction Of Nox ◽  
Further Development

The selective catalytic reduction (SCR) has been widely used in industrial denitrification owing to its high denitrification efficiency, low operating costs, and simple operating procedures. However, coal containing a large amount of sulfur will produce SO2 during combustion, which makes the catalyst easy to be deactivated, thus limiting the application of this technology. This review summarizes the latest NH3-SCR reaction mechanisms and the deactivation mechanism of catalyst in SO2-containing flue gas. Some strategies are summarized for enhancing the poison-resistance through modification, improvement of support, the preparation of complex oxide catalyst, optimizing the preparation methods, and acidification. The mechanism of improving sulfur resistance of catalysts at low temperatures is summarized, and the further development of the catalyst is also prospected. This paper could provide a reference and guidance for the development of SO2 resistance of the catalyst at low temperatures.

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