Search for dissertations about: "Kemiteknik"
Showing result 1 - 5 of 1319 swedish dissertations containing the word Kemiteknik.
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1. CO2 mitigation in advanced power cycles
University dissertation from Stockholm : KemiteknikAbstract : This thesis encompasses CO2 mitigation using three different processes: i) natural gas-fired combined cycle with chemical looping combustion (CLC), ii) trigeneration of electrical power, hydrogen and district heating with extended CLC, iii) steam-based gasification of biomass integrated in an advanced power cycle.In CLC, a solid oxygen carrier circulates between two fluidised-bed reactors and transports oxygen from the combustion air to the fuel; thus, the fuel is not mixed with air and an inherent CO2 separation occurs. READ MORE
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2. Assessment of tools for environmentally preferable procurement with a life cycle perspective the case of acquisition in Swedish defence
University dissertation from Stockholm : KTHAbstract : Procurement in public and non-public organisations has the potential to influence product development towards more environmentally preferable products. In 2003, public procurement in Sweden was 28% of GDP. Different types of approaches can contribute some knowledge and thereby facilitate the choice of environmentally preferable products. READ MORE
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3. Bimetallic palladium catalysts for catalytic combustion of methane
University dissertation from Stockholm : KTHAbstract : Catalytic combustion is a promising combustion technique in gas turbines, which results in ultra low levels of NOx, CO and unburned hydrocarbons. Due to the low combustion temperature achieved in catalytic combustion almost no thermal NOx is formed. The focus in this thesis will be on the first stage in a catalytic combustion chamber, i.e. READ MORE
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4. Catalytic Conversion of Undesired Organic Compounds to Syngas in Biomass Gasification and Pyrolysis Applications
University dissertation from Stockholm : KTH Royal Institute of TechnologyAbstract : Reliable energy supply is a major concern and crucial for development of the global society. To address the dependency on fossil fuel and the negative effects of this reliance on climate, there is a need for a transition to cleaner sources. An attractive solution for replacing fossil-based products is renewable substitutes produced from biomass. READ MORE
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5. Development of methane oxidation catalysts for different gas turbine combustor concepts
University dissertation from Stockholm : KTHAbstract : Due to continuously stricter regulations regarding emissions from power generation processes, development of existing gas turbine combustors is essential. A promising alternative to conventional flame combustion in gas turbines is catalytic combustion, which can result in ultra low emission levels of NOx, CO and unburned hydrocarbons. READ MORE
