Selaus nimekkeen mukaan kokoelmassa 215 Teknillinen kemia, kemian prosessitekniikka
Viitteet 58-77 / 105
-
Kartläggning och förbättringsförslag för en barrfiberlinjes bruntvätt
(2022)I diplomarbetet undersöks barrfiberlinjens bruntvättseffektivitet vid UPM Kymmene Oy:s cellulosafabrik i Jakobstad. I samband med effektivitetstestet har även enkla och linjära optimeringsmodeller konstruerats för att ge ... -
Korrosion orsakad av delikvescent ZnCl2 i förbränning av sidoströmmar
(2023)Utnyttjande av biomassa och sidoströmmar i energiproduktionen är ett alternativ att minska användningen av fossila bränslen och öka självförsörjningen av energi. Egenskaperna hos olika biomassor och sidoströmmar varierar ... -
Laboratory studies of KOH – induced corrosion under conditions relevant to the air reactor in chemical looping combustion
(2023)Due to the gradual increase of the greenhouse effect, the emissions of CO2 need to be limited. In addition, as the concerns for air pollution increase, a clean combustion process becomes important. Chemical looping combustion ... -
Lignin Esters and Their Composites with PLA
(2023)Due to depleting resources for fuel and chemical production, new sustainable and renewable materials are needed. A potential material for this is lignin, which has been of interest for the past decades. Lignin is a complex ... -
Lipase catalyzed chemo-enzymatic epoxidation of fatty acids using ultrasound as a process intensification method
(2021)The recent trend in switching from fossil to renewable sources in the production of essential chemicals has revealed novel methods within the concept of green chemistry. This work focuses on the epoxidation of oleic acid ... -
Machine learning for predicting alkali salt induced high-temperature corrosion of superheater materials
(2021)Climate change due to human activities has caused a global desire to lower CO2 emissions in the hope of halting the increasing global temperature. For electricity generation, this means reducing the CO2 emissions by ... -
Measurement of electrostatic forces for in-line quality control of ceramic slip
(2021)In this master’s thesis, done in collaboration with Geberit in Ekenäs, the goal was to determine whether a new in-line measurement probe was suitable for monitoring and controlling the slip manufacturing process. The ... -
Methods for Researching the Stratification Phenomena and Parameters Effecting it in a Cavern Thermal Energy Storage
(2021)At the moment energy companies in Finland have invested in large scale thermal energy storage to improve the efficiency of their district heating systems. This means that energy that would otherwise have beenwastedis saved ... -
Modelling of Lyocell fibre production and technical analysis of solvent recovery concepts
(Åbo Akademi, 2020)Lyocell is a type of man-made cellulosic fibre that is produced via direct dissolution of dissolving pulp in a non-volatile amine oxide or ionic liquid. The dissolved pulp is regenerated into long fibre strings by extruding ... -
Modelling, simulation, and optimization of hot stove operation
(Åbo Akademi, 2020)This thesis focuses on modelling and simulation of the operation of a system of three hot stoves used for preheating of the combustion air in the ironmaking blast furnace. A dynamic mathematical model of the stove set was ... -
Monitorering biofilmbildningen med kvartskristallmikrobalans (QCM) och ytplasmonresonans (SPR)
(2023)Biofilmer som bildas av bakterier består av bakterier och en extracellulär matris som skyddar bakterier från yttre hot. Biofilmer är en hälsorisk eftersom de är mer resistenta mot antibiotika än planktoniska bakterier. ... -
Non-halogenated fire retardant additives for an opaque exterior wood paint
(2021)This thesis focuses on finding effective and environmentally friendly fire retardant (FR) formulations for opaque exterior wood paints. The utilisation of green chemistry and incorporation of mineral-based FRs were deemed ... -
Non-process elements in the recovery cycle of six Finnish Kraft pulp mills
(Åbo Akademi, 2019) -
Novel experimental setup for coulometric signal transduction in ion-selective electrodes
(2022)In this research work, a simple and versatile novel experimental setup for coulometric signal transduction in ion-selective electrodes was introduced and studied. It is based on a constant potential coulometry measurement ... -
Online measurement techniques for nanocellulose films and coatings
(Åbo Akademi, 2019)There has been an inclination in industrial coatings towards the utilization of more eco-friendly, renewable, and biodegradable solutions. Among these solutions, a material of special interest is nanocellulose, which, owing ... -
Optimization of Lime Injection in EAF Systems by Using Pneumatic Sidewall Injectors
(2023)This master’s thesis work is a project for Nordkalk corporation as a part of a Business Finland co-funded project on Fossil-Free Steelmaking (FFS). The experiments of this study were performed in the Laboratory of Process ... -
Optimization of Waste Heat Recovery on Cruise Ships using Dynamic Simulation
(Åbo Akademi, 2020)The shipping industry is currently facing tightening emission regulations and demands for more efficient cruise ships to demand shipyards to find solutions for increased efficiency and lower emissions. Cruise ships still ... -
pH sensors with high sensitivity utilising coulometric transduction method : comparison of solid-contact ion-selective electrode and polyaniline-based ion-selective electrode
(Åbo Akademi, 2019)This thesis compares the analytical performance of solid-contact ion-selective electrodes (SCISEs) and polyaniline-based ion-selective electrodes for the determination of pH using a newly developed coulometric signal ... -
Printing and spectrometric detection of active pharmaceutical ingredients on different surfaces
(2021)Printing of pharmaceuticals is actively researched as a tailored and flexible fabricating method, towards personalized medicine. Inkjet printing is considered as a precise dosing method and in this work, theophylline is ...