Search for dissertations about: "Alkaline separation"
Showing result 1 - 5 of 32 swedish dissertations containing the words Alkaline separation.
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1. Development of Methods for Phase System Characterization in Liquid Chromatography
Abstract : The aim of this thesis is first and foremost to improve the fundamental knowledge of nonlinear and preparative separation theory by focusing on some of the remaining “white spots” on the theoretical chromatographic map. Secondly, the acquired knowledge is used to develop, validate and execute new methods for phase characterization in liquid chromatography. READ MORE
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2. Lignin Exraction from Black Liquor: Precipitation, filtration and washing
Abstract : Lignin extraction is a very interesting option for pulp mills today. Lignin is one major component, present as a dissolved organic compound, in black liquor, which is a by-product in the alkaline pulping of wood. After the digestion of wood chips, the black liquor is separated from the cellulose. READ MORE
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3. Separation of Biomass Components by Membrane Filtration - Process Development for Hemicellulose Recovery
Abstract : One of the major challenges facing the world today is the reduction of our dependency on fossil resources as their exploitation has severe negative effects on the environment. One way of realizing this is to utilise the components of lignocellulosic biomass to a greater extent as feedstock for various industrial products. READ MORE
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4. Membrane Filtration for Fractionation of Biomass Compounds - Process Design for the Separation of Hemicelluloses and Lignin from Alkaline Solutions
Abstract : It is important to replace fossil resources such as oil, coal and natural gas with renewable raw materials for the production of materials and fuels in order to reduce environmental impact. Furthermore, these raw materials should preferably be residues, e.g. READ MORE
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5. Poly(phenylene oxide)s functionalized with cationic side chains: design, synthesis and properties as anion exchange membranes
Abstract : Anion exchange membrane fuel cells (AEMFCs) are considered as one of the most important next-generation energy conversion technologies. AEMFCs convert chemical energy into useful electrical energy and have great potential forachieving high conversion efficiencies. READ MORE