Browsing Fakultet for naturvitenskap (NV) by Subject "Industriell kjemi og bioteknologi, Kolloid- og polymerkjemi"
Now showing items 1-10 of 10
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A study of the formation mechanism of calcium naphtenate deposits by using the axisymmetric drop shape analysis technique
(Master thesis, 2018)New batches of ARN were extracted with a yield of 15-17 % and with a purity of 92-93 %. The axisymmetric drop shape analysis (ADSA) technique was used on different samples of ARN, xylene and asphaltenes to study the ... -
Amino-Functionalized Magnetic Nanoparticles for Extraction of Naphthenic Acids
(Master thesis, 2016)The present work is a part of a 2-year Post Doc project carried out by a Vista program funded by Statoil and conducted in close collaboration with The Norwegian Academy of Science and Letters. The goal of the main project ... -
Capture of Carbon Dioxide in Lamellar Phase Liquid Crystals
(Master thesis, 2018)One of the most important environmental concerns the earth faces today is the release of greenhouse gases and other gases that accumulate in the atmosphere. Among these gases, carbon dioxide is one of the most abundant ... -
Destabilization of Emulsions in Porous Media
(Master thesis, 2016)Oil and water can form emulsions with different stability conditions while flowing through the porous systems in an oil reservoir. The stability of different oil-in-water (o/w), water-in-oil (w/o), and oil-in-water-in-oil ... -
Investigation of Adsorption of Surfactants onto Illite and Relations to Enhanced Oil Recovery Methods
(Master thesis, 2014)Surfactants have many applications in enhanced oil recovery (EOR) and for each of these applications, care must be taken in selecting the right surfactant. Surfactants tend to be a major portion of the costs associated ... -
Isolation, Characterization and Prediction of Calcium Naphthenates in High Acid Crude Oils
(Master thesis, 2015)Calcium naphthenates in crude oil causes operational problems in refineries and lowers the market price for oil production companies. This Master s thesis aims to study the naphthenic acids who form calcium naphthenates ... -
Modeling and Analysis of a Batch Gravity Separation of an Oil and Water Emulsion
(Master thesis, 2014)A model for simulating the separation of an emulsion in a batch gravity settler was tested. This model is based on a population balance which considers a non-uniform droplet distribution, where coalescence occurs simultaneously ... -
Partitioning of surfactants between the water and oil phases and relations to enhanced oil recovery methods
(Master thesis, 2014)The focus in this master thesis has been to investigate how a varying Ca2+/Na+ mole fraction affects the interfacial tension of a surfactant/brine - dodecane/toluene interface. It has also been investigated how the same ... -
The effect of calcium/sodium ratio on the dynamic adsorption of sodium dodecyl benzene sulfonate (SDBS) onto water/air interfaces. Evaluation of critical micelle concentrations, diffusion coefficients and molecular areas
(Master thesis, 2016)Test how calcium/sodium-ratio affect the dynamic adsorption of sodium dodecyl benzene sulfonate (SDBS) onto water/air interfaces where the ionic strength is kept constant at 20 mM, with the use of maximum bubble pressure ... -
The Influence of Salts with Different Cation Valency on Oil-in-Water Emulsion Stability
(Master thesis, 2015)The effect of different emulsion preparation parameters on the stability of oil-in-water (o/w) emulsions has been studied by varying the preparation parameters and then observing the emulsion visually. Change in the turbidity ...