Browsing by Discipline
Now showing items 1-12 of 12
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Analysis and simulation of K and Cl in electrostatic precipitator ash and black liquor of an operating kraft recovery boiler
(2023)Non-process elements such as potassium (K) and chlorine (Cl) are commonly found in the recovery cycle of kraft mills and are capable of forming highly soluble compounds. These elements, in high concentrations, can lead ... -
Complete oxidation of trans-4-pentylcyclohexanecarboxylic acid by catalytic ozonation using Cu-Mg bi-metallic catalysts
(2024)This thesis studied the use of a bi-metallic Cu and Mg catalyst dispersed on γ-Al2O3 for the complete oxidation of a naphthenic acid (NA) model compound, trans-4- pentylcyclohexanecarboxylic acid (4PCH) by ozone. ... -
Demethylation of sulfobutylated kraft lignin and its application as phenol-formaldehyde adhesives
(2025)The shift toward sustainable and eco-friendly adhesives has led to increased research into renewable alternatives for petroleum-derived components in phenol-formaldehyde (PF) resins. Lignin, a natural phenolic polymer, ... -
Development of a consistent cubic equation of state for the calculation of the phase behaviour and thermodynamic properties of pure components
(2023)This study analyzes two cubic equations of state (CEoS), the Redlich-Kwong (RK) and PengRobinson (PR) CEoS, to calculate the properties of 151 pure components. The components were grouped by their intermolecular interactions ... -
Drying of softwood kraft lignin and its cationic derivatives
(2024)Our dependence on petroleum-based materials comes with significant environmental challenges such as environmental pollution, including oil spills and air pollution. Furthermore, the utilization of petroleum-based products ... -
Impact of physicochemical properties of lignin-based polymers on their flocculation and adsorption performance
(2021)Industrial and municipal effluents contain colloidal charged particles, dissolved salts, heavy metals and other impurities, which may represent varied health risks and must be removed before discharge into the environment. ... -
Low CO2 methanol by methane pyrolysis in catalytic liquid metal bubble reactor
(2022)Methanol production based on methane pyrolysis presents an opportunity for CO2 utilization and lower CO2 emissions than traditional methanol production processes that are based on methane reforming. This research employs ... -
The phase behaviour of isopropanol/water/NaCl mixtures at atmospheric pressure
(2023)Alcohol-based biofuels will play a key role in substituting the fossil fuels used in transportation and power generation. Compared to fossil fuels, alcohol-based biofuels have a lower carbon footprint and can be produced ... -
Process design and feasibility study of synthetic crude production by the combination of methane decomposition, reverse water gas shift reaction, and Fischer-Tropsch synthesis
(2022)In this dissertation, the conversion of CO2 to gas-to liquid (GTL) products was investigated for the production of 30000 bbl per day syncrude. The GTL plant consisted of four main units: hydrogen production by catalytic ... -
Production of functional textile filaments from chemically modified cellulose fibers
(2020)Cellulose is the most abundant natural polymer on earth originated from renewable plant biomass. Among all plant sources, cotton fibers contain the highest amount of pure cellulose, which is used directly in textile ... -
Sustainability analysis of carbon dioxide emissions on combustion of biomass for electricity
(2022)The transition towards renewable, low-carbon energy is a fundamental element of climate change mitigation. Many countries around the world have set their decarbonization strategies to reduce emissions. The European Union ... -
Synthesized emulsifiers from kraft lignin and the role of mixing in oil-in-water emulsions
(2023)Oil-in-water emulsions are widely used in various industrial applications such as food, pharmaceuticals, and cosmetics. An oil-in-water emulsion is a colloidal system in which oil droplets are dispersed in water with the ...
