Evaluation of mechanical properties in metal wire mesh supported selective catalytic reduction (SCR) catalyst structures

2018 ◽  
Author(s):  
S. Rajath ◽  
C. Siddaraju ◽  
Y. Nandakishora ◽  
Sukumar Roy
Keyword(s):  
Mechanical Properties ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Metal Wire ◽  
Wire Mesh ◽  
Scr Catalyst

scholarly journals Mn–Fe bi-metal oxides in situ created on metal wire mesh as monolith catalysts for selective catalytic reduction of NO with NH3

RSC Advances ◽  
2017 ◽  
Vol 7 (64) ◽  
pp. 40444-40451 ◽  
Author(s):  
Jie Liu ◽  
Lin Kang ◽  
Hongrui Li ◽  
Phornphimon Maitarad ◽  
Jianping Zhang ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Selective Catalytic Reduction ◽  
High Performance ◽  
Catalytic Reduction ◽  
Metal Wire ◽  
Wire Mesh ◽  
Reduction Of No ◽  
Monolith Catalysts

Mn–Fe bi-metal oxides in situ created on a metal wire mesh are demonstrated as high-performance deNOx monolith catalysts.

Heterogeneous Mercury Reaction on a Selective Catalytic Reduction (SCR) Catalyst

2007 ◽  
Vol 121 (3-4) ◽  
pp. 219-225 ◽  
Author(s):  
Yujin Eom ◽  
Seok Ho Jeon ◽  
Thanh An Ngo ◽  
Jinsoo Kim ◽  
Tai Gyu Lee
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Scr Catalyst

Experimental and modeling study of selective catalytic reduction of NOx with NH3 over wire mesh honeycomb catalysts

2010 ◽  
Vol 165 (3) ◽  
pp. 769-775 ◽  
Author(s):  
Hong Sun ◽  
Yun Shu ◽  
Xie Quan ◽  
Shuo Chen ◽  
Bo Pang ◽  
...  
Keyword(s):  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Wire Mesh ◽  
Reduction Of Nox ◽  
Modeling Study

scholarly journals Reduction of NOx Emission of a Diesel Engine with a Multiple Injection Pump by SCR Catalytic Converter

2016 ◽  
Vol 64 (4) ◽  
pp. 1205-1210 ◽  
Author(s):  
Vít Marek ◽  
Lukáš Tunka ◽  
Adam Polcar ◽  
Dušan Slimařík
Keyword(s):  
Diesel Engine ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Catalytic Converter ◽  
Nox Emission ◽  
Multiple Injection ◽  
Scr Catalyst ◽  
Exhaust Gases ◽  
Injection Pump ◽  
Reduction Of Nox

This paper deals with reduction of NOx-emission of a diesel engine with multiple injection pump by SCR catalytic converter. Main aim of the measurement was the detection of SCR catalyst converter efficiency. Tests were realized at the Research and Development workplace of Zetor Tractor a.s. Used engine was equipped with a multiple injection pump with electromagnetic regulator of a fuel charge. During the experiment selective catalytic reduction and diesel particulate filter were used as an after treatment of harmful pollutants reduction. Testing cycle of the eight-point test was chosen and Non-Road Steady Cycle (NRSC) was maintained according to 97/68/EC directive. Results confirmed the dependencies between temperatures of SCR catalyst and exhaust gases and the volume of exhaust gases on efficiency of SCR catalyst. During the operation load of the engine, selective catalytic reduction reached efficiency over 90 %. Used after treatment system is suitable for reduction of harmful pollutants according to the Tier 4f norm.

scholarly journals Recent Developments in the Recycling of Spent Selective Catalytic Reduction Catalyst in South Korea

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 182 ◽  
Author(s):  
In-Hyeok Choi ◽  
Yeon-Chul Cho ◽  
Gyeonghye Moon ◽  
Hee-Nam Kang ◽  
YoungBok Oh ◽  
...  
Keyword(s):  
South Korea ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Scale Up ◽  
Practical Method ◽  
Recycling Process ◽  
Scr Catalyst ◽  
Recent Developments ◽  
Process Scale Up ◽  
Commercial Process

Spent selective catalytic reduction (SCR) catalyst installed in power and incineration plants is used to convert nitrogen oxide (NOx) gas to nitrogen (N2) gas. Currently, most spent SCR catalyst in South Korea is eventually discarded in landfills. Recently, a novel and efficient recycling process has been developed to recover tungsten (W), vanadium (V) and titanium (Ti) from spent SCR catalyst. In this process, after soda-melting reactions between the spent SCR catalyst and sodium carbonate (Na2CO3) at 1273 K, hydrometallurgical treatments were carried out for the production of high-purity products, such as 99.3% sodium tungstate (Na2WO4), 99.3% vanadium oxide (V2O5) and 99.6% titanium dioxide (TiO2). On the basis of the fundamental investigation of this novel recycling process, process scale-up has been attempted to establish a commercial process. In this paper, recent developments in the recycling process for spent SCR catalyst and the results obtained using the scaled-up process will be discussed. Therefore, this study will provide a practical method for the recovery of W, V and Ti from spent SCR catalyst.

scholarly journals Promotional effect of niobium substitution on the low-temperature activity of a WO3/CeZrOxmonolithic catalyst for the selective catalytic reduction of NOxwith NH3

RSC Advances ◽  
2017 ◽  
Vol 7 (75) ◽  
pp. 47570-47582 ◽  
Author(s):  
Haidi Xu ◽  
Qingjin Lin ◽  
Yun Wang ◽  
Li Lan ◽  
Shuang Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Promising Candidate ◽  
Scr Catalyst ◽  
Promotional Effect

Optimal WO3substituted by Nb2O5could obviously improve the low-temperature NH3-SCR activity of WO3/Ce0.68Zr0.32O2, and the Nb-substituted catalyst showed excellent SO2and H2O tolerance could be a promising candidate for NH3-SCR catalyst.

scholarly journals Deposition of Selective Catalytic Reduction Coating on Wire-Mesh Structure by Atmospheric Plasma Spraying

Materials ◽  
2019 ◽  
Vol 12 (18) ◽  
pp. 3046 ◽  
Author(s):  
Xiaoyu Ma ◽  
Yunlong Ma ◽  
Hui Li ◽  
Yingliang Tian
Keyword(s):  
Catalytic Activity ◽  
Selective Catalytic Reduction ◽  
Plasma Spraying ◽  
Catalytic Reduction ◽  
Industrial Applications ◽  
Atmospheric Plasma Spraying ◽  
Wire Mesh ◽  
Atmospheric Plasma ◽  
Mesh Structure ◽  
Tio2 Support

A series of catalytic coatings consisting of MnOx-CeO2 and TiO2 support were prepared by atmospheric plasma spraying, which was aimed at the application of selective catalytic reduction (SCR) of NOx. The effect of the load of active component on the coating was firstly studied. The results showed that all the coating presented the highest catalytic activity at approximately 350 °C and the coating with the composition of 20MnOx/5CeO2/TiO2 (wt%) achieved the most powerful performance. The coating was then prepared on a wire-mesh structure substrate, which can be easily assembled as a gas filter. The results showed that the specific surface area was greatly increased resulting in the significant improvement of the catalytic activity of the coating. This strategy offered a promising possibility of removing NOx and particulate fliting simultaneously in industrial applications.

Sign in / Sign up

Export Citation Format

Share Document