Selaus nimekkeen mukaan kokoelmassa 215 Teknillinen kemia, kemian prosessitekniikka
Viitteet 81-100 / 105
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Reduction of iron oxides with hydrogen
(2021)Iron is produced from iron ore in one of two ways, either through a blast furnace, where coke is used as fuel and reduction agent, or by a direct reduction process. The blast furnace is currently dominating iron production, ... -
Removal of calcium from industrial-grade magnesium sulfate solution
(2022)The aim of this work was to find a method to remove calcium impurities from a concentrated magnesium sulfate solution. Different methods were evaluated, including (i) selective precipitation using ethanol, sodium carbonate, ... -
Some treatment techniques for humid exhaust air
(Åbo Akademi, 2019) -
Study of percolation phenomena in ironmaking by DEM
(Åbo Akademi, 2019)Increasing demand for steel has prompted the increase in production capacities for hot metal and need to improve the efficiency in the blast furnace operation. In the handling of the raw materials used in ironmaking, and ... -
Surveying and developing of methods for enabling compact reagent mixing in SCR systems
(Åbo Akademi, 2019)Sekretessbelagd fram till 2.1.2024 -
Sustainable chemo-enzymatic epoxidation of fatty acids using semibatch technology for the investigation of ring-opening products and catalyst deactivation : Kinetic measurements and modelling
(2023)The need to find alternatives to fossil-based raw materials has encouraged the development of new methodologies and technologies utilising renewable resources. Biomass in the form of vegetable oils has been of interest ... -
Sustainable Feedstock to Acrylic Acid using H-Y zeolites
(2023)This academic master thesis focuses on the synthesis, characterization, and testing of H-Y zeolites as catalysts for the synthesis of methyl lactate from glucose. The objective of this work was to explore the potential of ... -
Synthesis of sugar-based polymerizable materials for hydrogel preparation
(2022)To match the growing need for biodegradable, biocompatible and biobased materials, this thesis explored the possibilities of the synthesis of bio-based (photo)polymerizable materials from sugars and sugar alcohols and the ...Embargo 13.6.2023 asti -
Synthesis, characteristics, and antibacterial effects of biomaterials in nanoscale
(2022)In this thesis, lignin/tannin nanoparticles (LNP/TNP) from different sources and processes were synthesized by nanoprecipitation method using lignin/acetone (and tannin/acetone) as solvents, and distilled water was used ... -
Tailored low consistency refining for targeted fiber properties
(Åbo Akademi, 2020)The main aim of the study has been to analyze the impact of refining on the physical and optical properties of paper sheets with respect to change in three refining parameters. The three parameters that have been changed ... -
Techno-economic analysis of a reversible solid oxide cell and hydrogen gas storage system
(Åbo Akademi, 2019)As the share of intermitted renewable energy increases, there will be a growing demand of grid balancing energy storage solutions. A new type of energy storage is using hydrogen gas as an energy carrier and reversible solid ... -
The effects of temperature treatments on the structure of an injectable depot material consisting of silica microparticles and a silica hydrogel
(2022)During transportation of injectable depot materials, temperature variations might occur as they are shipped globally in different climates. A systematic approach to study the effects of temperature variations was therefore ... -
The fate of Sn, Pb, Cu, and Ni from e-waste in secondary copper smelting
(2023)Electronic waste (e-waste) is waste generated from end-of-life electrical and electronic equipment. E-waste is the fastest growing type of solid waste stream. This has become a major environmental concern. Fortunately, the ... -
The potential of lignin as a maritime biofuel
(2021)In the 1940s, efforts towards lignin valorisation were triggered by high oil prices, but today, the motives are much more varied. The movement towards a greener future to combat climate change and the expected introduction ... -
The Potential Use of LNG in SSAB Raahe Steelworks
(2020)Steel has been produced for thousands of years, but its extensive, industrial use began during the industrialization, with the introduction of more efficient production methods, such as the blast furnace. The global ... -
The short sea shipowner taking on new waves of innovation
(Åbo Akademi, 2018) -
Thermal degradation and stabilization of HVDC power cable insulation materials based on polypropylene
(2022)In this work, a series of antioxidant formulations’ effectiveness for propylene copolymers intended to be used as insulation materials for HVDC cables has been eval-uated by subjecting the polymer samples to forced-air ...