A novel method for automated SCR catalyst uniformity measurement
Sign Up to like & getrecommendations! Published in 2021 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.130257
Abstract: Abstract Exhaust after treatment systems are becoming more complicated with the ever-stricter emission regulations. To meet the regulation limits, a tightly packed high-performance system is required. In selective catalytic reduction (SCR) systems, ammonia (NH3) uniformity… read more here.
Keywords: uniformity; novel method; scr catalyst; measurement ... See more keywords
Optimizing vanadium and tungsten leaching with lowered silicon from spent SCR catalyst by pre-mixing treatment
Sign Up to like & getrecommendations! Published in 2018 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2018.10.003
Abstract: Abstract In this paper, the leaching behaviors of vanadium (V), tungsten (W) and silicon (Si) from spent SCR (selective catalytic reduction) catalyst were evaluated and a pre-mix treatment to enhance V-W leaching with low Si… read more here.
Keywords: vanadium tungsten; scr catalyst; silicon spent; spent scr ... See more keywords
Methodology for Analysing the NOx-NH3 Trade-off for the Heavy-duty Automotive SCR Catalyst
Sign Up to like & getrecommendations! Published in 2017 at "IFAC-PapersOnLine"
DOI: 10.1016/j.ifacol.2017.08.1435
Abstract: Abstract This paper presents a methodology where pareto fronts were used to analyse how changes in the control structure for the urea dosing to the automotive SCR catalyst can improve the trade-o_ between NOx slip… read more here.
Keywords: scr catalyst; trade; methodology; automotive scr ... See more keywords
Study on the performance of a hydrocyclone used for recycling the waste SCR catalyst
Sign Up to like & getrecommendations! Published in 2020 at "Journal of environmental chemical engineering"
DOI: 10.1016/j.jece.2020.104349
Abstract: Abstract The selective catalytic reduction (SCR) catalyst has been widely used for de-nitrification processes of flue gas from coal-fired power plants because of its high de-nitration efficiency and low operating cost. But the SCR catalyst… read more here.
Keywords: waste scr; scr; scr catalyst; hydrocyclone used ... See more keywords
A clean and efficient approach for recovery of vanadium and tungsten from spent SCR catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Minerals Engineering"
DOI: 10.1016/j.mineng.2021.106857
Abstract: Abstract The widespread use of selective catalytic reduction (SCR) catalysts will provide many waste SCR catalysts. These spent catalysts can be identified as hazardous solid waste because they contain a lot of heavy metals. This… read more here.
Keywords: clean efficient; scr catalyst; catalyst; vanadium ... See more keywords
Hydrometallurgical process development to recycle valuable metals from spent SCR deNOX catalyst
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-01726-0
Abstract: Spent catalyst, containing vanadium and tungsten oxide in a TiO2 glass fiber matrix, pose a risk of environmental contamination due to the high toxicity of its metal oxides if leached into the soil when disposed… read more here.
Keywords: hydrometallurgical process; valuable metals; scr catalyst; spent scr ... See more keywords
Deactivation of a Vanadium-Based SCR Catalyst Used in a Biogas-Powered Euro VI Heavy-Duty Engine Installation
Sign Up to like & getrecommendations! Published in 2020 at "Catalysts"
DOI: 10.3390/catal10050552
Abstract: We have investigated how the exhaust gases from a heavy-duty Euro VI engine, powered with biogas impact a vanadium-based selective catalytic reduction (SCR) catalyst in terms of performance. A full Euro VI emission control system… read more here.
Keywords: scr catalyst; engine; vanadium based; heavy duty ... See more keywords
Deactivation of Cu/SSZ-13 NH3-SCR Catalyst by Exposure to CO, H2, and C3H6
Sign Up to like & getrecommendations! Published in 2019 at "Catalysts"
DOI: 10.3390/catal9110929
Abstract: Lean nitric oxide (NOx)-trap (LNT) and selective catalytic reduction (SCR) are efficient systems for the abatement of NOx. The combination of LNT and SCR catalysts improves overall NOx removal, but there is a risk that… read more here.
Keywords: combination; deactivation; scr catalyst; spectroscopy ... See more keywords