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
TiO2-Supported Catalysts in Low-Temperature Selective Reduction of NOx with NH3: A Review of Recent Progress
Sign Up to like & getrecommendations! Published in 2024 at "Catalysts"
DOI: 10.3390/catal14090558
Abstract: Selective catalytic reduction (SCR) stands out as a pivotal method for curbing NOx emissions from flue gas. The support, crucially, for SCR efficacy, loads and interacts with the active components within the catalyst. The catalysts… read more here.
Keywords: nh3; catalyst; scr catalyst; performance ... 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