Search for dissertations about: "ash chemistry"
Showing result 1 - 5 of 65 swedish dissertations containing the words ash chemistry.
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1. Ash chemistry and fuel design focusing on combustion of phosphorus-rich biomass
Abstract : Biomass is increasingly used as a feedstock in global energy production. This may present operational challenges in energy conversion processes which are related to the inorganic content of these biomasses. As a larger variety of biomass is used the need for a basic understanding of ash transformation reactions becomes increasingly important. READ MORE
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2. Fate of Trace Elements in Thermochemical Conversion of Waste Fuels Using Oxygen Carriers
Abstract : The metals zinc, copper and lead are amongst the more abundant trace elements in waste fuels. The fate of these elements is important to study because they can affect the thermochemical conversion process and end up in ashes. READ MORE
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3. Chemical Properties of FBC Ashes
Abstract : In this thesis several aspects of ash chemistry are discussed. An issue of primary concern for boiler operators is the formation of ash deposits. New biomass fuels are introduced, many of which have unfavourable ash melting behaviour due to high levels of alkali metal species and chlorine. READ MORE
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4. Impact of Ash on the Properties of Fluidized Bed Materials
Abstract : The utilization of the fluidized bed technology offers the possibility of thermally converting a large variety of biogenic feedstocks. The characteristics of the bed material which is used in the process play a major role regarding the overall process performance. READ MORE
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5. Distribution and chemical association of trace elements in incinerator residues and mining waste from a leaching perspective
Abstract : Incineration is a mainstream strategy for solid waste management in Sweden and all over the world. Improved knowledge and understanding about the distribution of trace elements (in ashes) during incineration, and how trace element partitioning respond to the changes in waste composition, are important in terms of combustion process optimization and plant efficiency. READ MORE