Essays about: "Selective Catalyst Reduction"

Showing result 1 - 5 of 12 essays containing the words Selective Catalyst Reduction.

  1. 1. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Mathias Schmekel; [2023]
    Keywords : Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

    Abstract : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. READ MORE

  3. 2. Identifying risks of AdBlue spray on stainless steel surfaces

    University essay from KTH/Kemiteknik

    Author : Evelina Tvinne Flyg; [2021]
    Keywords : Urea; Stainless steel; SCR; Deposit; Corrosion; Urea; rostfritt stål; SCR; Avlagring; Korrosion;

    Abstract : Utsläppskontroll, reglerad av allt strängare lagstiftning, ställer höga krav på utvecklingen av noggranna efterbehandlingssystem för avgaser. När det gäller utsläpp från dieselmotorer utgör NOx-minskning en av de största utmaningarna. För tunga fordon tacklas denna utmaning ofta genom ett SCR-system. READ MORE

  4. 3. Defining Black: Characterization of Soot Reactivity with Thermogravimetrical Methods : Definiera svart: Karaktärisering av sotreaktivitet med termogravimetriska metoder

    University essay from KTH/Tillämpad fysik

    Author : Adarsh Roy Choudhury; [2020]
    Keywords : Diesel Particulate Filter; Chemical Kinetics;

    Abstract : Exhaust emissions in a vehicle has to flow through an exhaust aftertreatment in a diesel vehicle. In a diesel engine, the exhaust emissions are treated with Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR). Every engine produces a different kind of soot depending on the drive cycle. READ MORE

  5. 4. Fabrication and Evaluation of Perovskite LaCrO3 Nanoparticles as Catalyst for Electrochemical Ammonia Synthesis

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Mathilda Ohrelius; [2019]
    Keywords : nitrogen reduction reaction; electrochemical ammonia synthesis; catalyst; perovskite; LaCrO3; fuel cell; renewable energy; Science General;

    Abstract : As our way of living exploits the resources of the earth and our energy use keeps on increasing, we are now facing a climate crisis never seen before in modern time. To face these consequences and try to ease the harm we need to transform our extraction and use of energy. READ MORE

  6. 5. Sulfur poisoning and regeneration of copper zeolites for NH3-SCR : Effect of SO2/SO3 ratio

    University essay from Luleå tekniska universitet/Kemiteknik

    Author : Åsa Högström; [2018]
    Keywords : Cu-zeolites; Ammonia-SCR; Sulfur poisoning; Regeneration; Kinetic model;

    Abstract : The road transportation is a big source for the release of NOx emissions. NOx has been confirmed to cause negative affect on the air-quality especially in the urban areas, there are therefore regulations for allowed released amount from vehicles. READ MORE