Search for dissertations about: "urea-SCR catalyst"

Found 3 swedish dissertations containing the words urea-SCR catalyst.

  2. 1. Urea Decomposition for Urea-SCR Applications

    Author : Andreas Lundström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NOx; Selective Catalytic Reduction; Urea; Thermolysis; Modeling; Computational Fluid Dynamics;

    Abstract : Volatile emissions produced by the combustion of fossil fuels may be converted on a catalyst to less harmful products. During lean combustion an excess of oxygen in the exhaust gases together with a catalyst effectively oxidizes carbon monoxide and hydrocarbons into carbon dioxide and water. READ MORE

  4. 2. Computational Fluid Dynamics and Experimental Studies of the Urea-SCR System

    Author : Andreas Lundström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; urea; SCR; decomposition; CYA; HNCO; NH3; CFD; thermolysis;

    Abstract : Volatile emissions produced by the burning of fossil fuels may be converted on a catalyst to less harmful products. During lean combustion an excess of oxygen in the exhaust gases together with a catalyst effectively oxidizes carbon monoxide and hydrocarbons into carbon dioxide and water. READ MORE

  5. 3. NOx Abatement Technique for Marine Applications - Improved SCR Systems

    Author : Mathias Magnusson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Sulfur dioxide; Human-Machine system; NOx reduction; Water; urea-SCR catalyst; Marine applications; Human element.;

    Abstract : Growing awareness of the environmental implications of emissions of nitrogen oxides (NOX), such as eutrophication and acidification on land and at sea, has contributed to the development of more stringent international NOx legislations within the framework of IMO, with the most stringent legislation, Tier III, representing a NOx reduction of approximately 80% compared with today’s engines. Several NOx abatement technologies are available on the market, the most effective of which may be Selective Catalytic Reduction (SCR). READ MORE