Selaus syöttöajan mukaan kokoelmassa 215 Teknillinen kemia
Viitteet 21-40 / 127
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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 ... -
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 ... -
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) -
A set of models for optimization of gas distribution networks : A study in Process and Systems Engineering
(Åbo Akademi - Åbo Akademi University, 14.06.2019)Natural gas is a fossil fuel with a high potential to become the bridging fuel in the transition towards a sustainable future because of its lower share of carbon compared to oil and coal. A growing popularity of LNG, ... -
Aspects on Robust Control and Identification
(Åbo Akademi - Åbo Akademi University, 31.05.2019)This thesis treats different aspects on robust controller design and model identification techniques. The controller design technique proposes frequency-domain specifications for achieving a fixed-structure controller with ... -
Numerical and experimental optimization analysis of a jaw crusher and a bubble column reactor
(Åbo Akademi - Åbo Akademi University, 29.05.2019)More and more awareness is now raising in terms of sustainability of industrial processes. Thus the necessity to improve energy efficiency of diverse devices or simplify process schemes arises. Therefore, the importance ... -
Initial Stages of Alkali Salt Induced High Temperature Corrosion Mechanisms : Experimental studies using a combination of chronoamperometry, scanning electron microscopy, X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry
(Åbo Akademi - Åbo Akademi University, 24.05.2019)Various environmental problems, such as global warming, are related to the extensive use of fossil fuels. To solve these environmental problems, several renewable energy resources (RES) to substitute fossil fuels have drawn ... -
Antibacterial surfaces produced by liquid flame spray deposition of silver nanoparticles
(Åbo Akademi - Åbo Akademi University, 24.05.2019)Healthcare associated infections (HAIs) are one of the major problems of modern healthcare. Pathogenic bacteria responsible for these HAIs are mostly transmitted via surfaces. Emphasis on preventive measures can cumulatively ... -
Valuable monomers and oligomers from hemicelluloses
Acta technologiae chemicae Aboensia : 2019 A/1 (Åbo Akademi - Åbo Akademi University, 03.05.2019)Current environmental problems such as global warming and climate change related to greenhouse gas emissions have enhanced industrially relevant research aimed towards a more sustainable future. The biorefinery concept ... -
Supramolecular design of cellulose-based hydrogel beads
(Åbo Akademi - Åbo Akademi University, 08.03.2019)The degree of polymerization (DP) of cellulose fibres is an important factor to consider during dissolution in water-based solvent system and to design further advanced biomaterials. The lower is the DP, the higher cellulose ... -
Aqueous-Phase Reforming of Renewable Polyols for Sustainable Hydrogen Production
(Åbo Akademi - Åbo Akademi University, 22.02.2019)Renewable biomass can be utilized for sustainable hydrogen production via aqueousphase reforming (APR), which implies catalytic conversion of aqueous solutions of alcohols and polyols over transition metals at comparably ... -
Three-dimensional printing of wood-derived biopolymers towards biomedical applications
(Åbo Akademi - Åbo Akademi University, 22.02.2019)Three-dimensional (3D) printing has shown promising potential in fabrication of complex tissue with a structural control from micro- to macro-scale, meeting the requirements of tissue engineering. Wood-derived biopolymers ...