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Monomers from vegetable oil feedstock : kinetics, catalysis and thermal risk
Acta technologiae chemicae Aboensia : 2021 A/3 (Åbo Akademi University & Institut National des Sciences Appliquées de Rouen, 09.07.2021)Polyurethanes are among the most important polymers in our everyday life, they are industrially produced via the reaction of polyols and di-isocyanates. This process present multiple severe drawbacks such as high toxicity ... -
Life Cycle Assessment of Plastic Waste, its Treatment, and Application of the Upcycled Product : A Comprehensive Circular Approach
(Åbo Akademi University, 23.06.2021)Plastic waste management is a growing global problem. Single-use flexible packaging plastic waste (FPPW) is one of the most challenging types of plastic waste to recycle due to its mixed composition (including bags, ... -
Production and testing of magnesium carbonate hydrates for thermal energy storage (TES) application
(Åbo Akademi University, 18.06.2021)I denna avhandling ingår både forskning inom koldioxidavskiljning och lagring genom mineralisering (CCSM) (carbon capture and storage by mineralisation, CCSM) och produktion av dess slutprodukt, magnesiumkarbonathydrat ... -
Development of structured catalyst and reactor technologies for biomass conversion - Continuous production of sugar alcohols
Acta technologiae chemicae Aboensia : 2021 A/2 (Åbo Akademi University, 19.05.2021)Energy-efficient technologies have been an aspiration for chemical industries, especially the design of chemical reactors. Structured catalysts play an important role to achieve this purpose. Several types of structured ... -
Green aviation fuel hydrocarbons from lignocellulosic biomass via hydrothermal liquefaction
Acta technologiae chemicae Aboensia :2021 A/1 (Åbo Akademi University, 21.05.2021)Hydrothermal liquefaction (HTL) of lignocellulosic biomass in primary alcohols is a novel thermochemical method to produce sustainable aviation fuel range cyclic hydrocarbons. In this method, particularly the underutilized ... -
Modelling approaches for optimization of integrated regional energy systems
(Åbo Akademi University, 03.12.2020)This thesis deals with the subject of energy system optimization models. Energy systems in this context are the connected networks of energy sources, energy conversion, transport and storage technologies, and various energy ... -
Nanophotonics on Paper Platform
(Åbo Akademi University, 30.10.2020)This work concentrated on three nanophotonic applications based on printed and coated functionality on natural fibre based substrates. Hence, the thesis deals with three emerging fields: nanotechnology, nanophotonics, and ... -
Silk-inspired molecular design of bacterial nano-cellulose biomaterials
(Åbo Akademi University, 14.10.2020)In recent years, there has been a growing interest in the development of bio-inspired materials as they have the potential to offer improvements in the design of superior mechanical performance materials. Furthermore, the ... -
Modeling and analysis of blast furnace drainage
(Åbo Akademi University, 02.10.2020)The blast furnace is the prevailing unit process for iron-making in the steelmaking process and the present growing global demand for steel leads to higher requirements set on the efficiency and productivity of the process. ... -
Properties of raw glazes - The impact of composition, firing and functional coatings
(18.09.2020)Raw glazes, i.e. glazes mixed from oxides and minerals, are cost-effective alternatives to fritted compositions for ceramics fired at a high peak temperature (> 1150 °C). Raw glazes are mainly used for sanitary ware and ... -
Thermochemical Conversion Characteristics of Vinasse
(Åbo Akademi - Åbo Akademi University, 28.08.2020)Vinasse, also known as stillage or spent wash, is an effluent from the distillery plant of the integrated sugar-ethanol process. It is characterized by an acidic pH, a black-reddish color, and being a dilute effluent with ... -
Solution-Processable Compact and Mesoporous Titanium Dioxide Thin Films as Electron-Selective Layers for Perovskite Solar Cells
(Åbo Akademi - Åbo Akademi University, 06.08.2020)Perovskite solar cells (PSCs) is a promising photovoltaic technology for low-cost electricity generation to fulfill future demands. However, the success of any photovoltaic device is highly dependent on the quality of its ... -
Destruction of selected pharmaceuticals by ozonation and heterogeneous catalysis
Acta technologiae chemicae Aboensia : 2020 A/1 (Åbo Akademi - Åbo Akademi University, 16.03.2020)The availability and quality of clean and safe water supplies is directly connected to the modality of wastewater treatment. Municipal wastewater treatment processes are designed to purify and degrade polluting components ... -
Development of microreactor technology for partial oxidation of ethanol on gold catalyst
Acta technologiae chemicae Aboensia : 2019 A/3 (Åbo Akademi - Åbo Akademi University, 06.03.2020)Oxidation of alcohols from biological origin is of significant industrial relevance for the production of fine and specialty chemicals. Aldehydes from polyols are important intermediates in pharmaceutical and alimentary ... -
Formic acid fractionation of bamboo and valorization of isolated lignin
(Åbo Akademi - Åbo Akademi University, 14.02.2020)Lignocellulosic biomass is the most abundant and renewable natural resource on earth. It has been regarded as an environmentally sustainable raw material to be converted into chemicals and biomaterials. To profitably use ... -
Epoxidation of vegetable oils : process intensification for biomass conversion
Acta technologiae chemicae Aboensia : 2019 A/22019 A/2 (Åbo Akademi - Åbo Akademi University, 15.01.2020)Oils extracted from plants, algae, seeds and wood are one of the vast biomass resources which can be used to elaborate a wide range of products. Tall oil obtained from forest biomass is a good source of vegetable oils, ... -
Effects of Temperature Gradient on Ash Deposit Aging and Heat Exchanger Corrosion
(Åbo Akademi - Åbo Akademi University, 22.11.2019)Boilers firing biomass and/or waste-derived fuel have in general lower electrical efficiencies compared to coal-fired boilers. The root cause for the lower electrical efficiency lies in the high-temperature corrosion of ... -
Adsorption of Silane Coupling Agents on Glass Fibre Surfaces
(Åbo Akademi - Åbo Akademi University, 08.11.2019)Commercial glass fibres are commonly used in reinforced composites. The importance of such composites is apparent in a number of areas and applications. Composites have maintained their popularity during several decades, ... -
Membrane Separations, Extractions and Precipitations in Aqueous Solutions for CO2 Mineralisation
(Åbo Akademi - Åbo Akademi University, 11.10.2019)The global carbon dioxide (CO2) emissions have been growing rapidly since the industrial revolution starting in the 18th century. This has led to increasing CO2 concentrations in the atmosphere, which in turn heats up the ... -
The role and corrosivity of lead in recycled wood combustion
(Åbo Akademi - Åbo Akademi University, 30.08.2019)