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Showing result 1 - 5 of 12 swedish dissertations matching the above criteria.
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1. Experimental studies of NOx storage catalysts -Preparation, characterisation, NOx regeneration and sulfur deactivation
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2. Low temperature CO oxidation on supported platinum and cobalt oxide catalysts
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3. Experimental and kinetic studies of H2 effect on lean exhaust aftertreatment processes: HC-SCR and DOC
Abstract : With a growing concern to lower greenhouse gas emissions from road transportation, lean burn and diesel engines will keep playing an important role in the future. Development of a highly efficient and durable process to reduce NOx to N2 becomes a challenging issue especially in the presence of ample O2 concentration as in lean burn exhaust. READ MORE
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4. New Materials in Environmental Catalysis
Abstract : This thesis presents new approaches to the control of emissions within the field of environmental catalysis. Three catalytic systems; bimetallic catalysts, perovskites and promoted catalysts have been prepared and evaluated for complete oxidation of volatile organic compounds and for simultaneous conversion of CO, hydrocarbons and nitrogen oxides. READ MORE
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5. Preparation and characterisation of perovskite and noble metal promoted oxide based catalysts
Abstract : This work concerns efforts to improve or replace noble-metal based catalysts used for car exhaust purification.Various oxide based catalysts have been prepared by impregnating washcoats such as (-Al2O3 and SiO2 with appropriate metal ions, and assemblies calcinated at elevated temperatures have been tested for catalytic activity in the oxidation of CO and C3H6 and reduction of NO. READ MORE