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Måling av reaksjonsvarme og gass-/væskelikevekt for CO2 fangst i solventer med to væskefaser
(Master thesis, 2016)Absorpsjon av CO2 ved bruk av aminer er en velutviklet teknologi for CO2-fangst. Likevel er det stort forbedringspotensial ved dagens teknologi, relatert til blant annet høyt energiforbruk, degradering av aminer og ... -
MBCO: The materials-based business case ontology from BPMN-EMMO integration
(Chapter, 2024)Open innovation in materials research involves the collaborative sharing of knowledge, ideas, and resources across organisations. Unfortunately, a lack of mutual understanding between scientific and industrial partners and ... -
Measurement and Modeling of Physical Properties of Amines
(Master thesis, 2013)Calibrate the high pressure viscometer at different temperatures and pressure. Measure the viscosity and density for MDEAsystems and DMMEAsystems, unloaded and loaded with CO2. Modeling of the measured properties. -
Measurement and prediction of oxygen solubility in post-combustion CO2 capture solvents
(Peer reviewed; Journal article, 2020)This work aims to understand oxygen solubility in pure and aqueous amine solvents for CO2 capture. Commercially available dissolved oxygen sensors were studied to evaluate whether these can be used for measuring oxygen ... -
Measurements of the Viscosity of Hydrogen and a (Hydrogen + Methane) Mixture with a Two-Capillary Viscometer
(Journal article; Peer reviewed, 2024)Measurements of the viscosity of pure hydrogen and a binary (hydrogen + methane) mixture with a nominal composition 90 mol % hydrogen are presented. The measurements were conducted with a two-capillary viscometer relative ... -
Measuring and model CO2 solubility in amine aqueous solution
(Master thesis, 2017)Absorption by amines is the most mature technology for CO2 capture. In this context, two alkanolamines: 2-piperidine-ethanol (2-PPE) and 1-(2-hydroxyethyl)-pyrrolidine (1-2HE-PRLD) are being investigated in this work. Ternary ... -
Measuring filter-cake cohesive strength and flowability
(Peer reviewed; Journal article, 2022)The filter-cake has a critical role in temporarily reducing the permeability of the wellbore to prevent issues such as lost circulation, formation damage, wellbore collapse and differential sticking. The filter-cake's ... -
Measuring gas-liquid mass transfer in very small bubbles
(Master thesis, 2018)Modern industry is always striving for process optimization and reducing emissions, which in many cases requires an accurate modeling of interfacial gas-liquid mass transfer. To study the interfacial gas-liquid mass ... -
Mechanical and Thermal Properties of Carboxymethyl fibers (CMF)/PVA based nanocomposite membranes
(Peer reviewed; Journal article, 2020)Carboxymethyl fibers (CMF) of cellulose are renewable biopolymer and have shown strong reinforcing properties when added to a compatible polymer matrix. The objective of this study was to investigate the effect of CMF on ... -
Mechanical properties of cellulose nanofibril films: effects of crystallinity and its modification by treatment with liquid anhydrous ammonia
(Journal article; Peer reviewed, 2019)The influence of cellulose crystallinity on mechanical properties of cellulose nano-fibrils (CNF) was investigated. Degree of crystallinity (DoC) was modified using liquid anhydrous ammonia. Such treatment changes crystal ... -
Mechanical properties of composite hydrogels of alginate and cellulose nanofibrils
(Journal article; Peer reviewed, 2017)Alginate and cellulose nanofibrils (CNF) are attractive materials for tissue engineering and regenerative medicine. CNF gels are generally weaker and more brittle than alginate gels, while alginate gels are elastic and ... -
Mechanical, thermal and swelling properties of cellulose nanocrystals/PVA nanocomposites membranes
(Journal article; Peer reviewed, 2018)Cellulose nanocrystals (CNC) have strong reinforcing properties when incorporated in a compatible polymer matrix. The study was conducted to investigate the effect of addition of different proportions of CNC on the mechanical, ... -
Mechanisms and Reaction Pathways in MEA Degradation; A Computational Study
(Journal article; Peer reviewed, 2014)The mechanistic details on formation of HEGly and HEPO in MEA degradation are studied using the ab initio and density functional theory methods. The energetics of various pathways leading to formation of HEGly and HEPO are ... -
Mechanisms of Physical Stabilization of Concentrated Water-In-Oil Emulsions Probed by Pulse Field Gradient Nuclear Magnetic Resonance and Rheology through a Multiscale Approach
(Journal article; Peer reviewed, 2018)The long-term physical stability of surfactant-stabilized (Span 80 and Tween 20) concentrated water-in-mineral oil (W/O) emulsions in the presence of an electrolyte (NaCl) was studied. Pulse field gradient NMR and rheology ... -
Mechanisms of water-in-crude oil emulsion formation, stabilization and resolution by electrostatic means.
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:121, Doctoral thesis, 2008)Oil reserves are declining all over the world. Nevertheless the age of oil is probably bound to last for several years still, even though the growth of the world energy consumption will lead to a faster depletion than the ... -
Mechanistic aspects of facet-dependent CH<inf>4</inf>/C<inf>2+</inf> selectivity over a χ-Fe<inf>5</inf>C<inf>2</inf> Fischer–Tropsch catalyst
(Journal article; Peer reviewed, 2021) -
Mechanistic insight into size-dependent activity and durability in Pt/CNT catalyzed hydrolytic dehydrogenation of ammonia borane
(Journal article; Peer reviewed, 2014)We report a size-dependent activity in Pt/CNT catalyzed hydrolytic dehydrogenation of ammonia borane. Kinetic study and model calculations revealed that Pt(111) facet is the dominating catalytically active surface. There ... -
Mechanistic Insights into Cobalt-based Fischer-Tropsch Synthesis
(Doctoral thesis at NTNU;2016:106, Doctoral thesis, 2016)Fischer-Tropsch synthesis (FTS) is an alternative process of yielding transportation fuels and chemicals by converting syngas derived from natural gas, biomass and coal. Cobalt-based catalysts are favorable catalysts for ... -
Mechanistic Insights into the Pore Confinement Effect on Bimolecular and Monomolecular Cracking Mechanisms of N-octane over HY and HZSM-5 Zeolites: A DFT Study
(Journal article; Peer reviewed, 2018)Bimolecular and monomolecular cracking mechanisms of alkanes simultaneously occur and have a competitive relationship, which strongly influences the product distribution. In this work, the density functional theory (DFT) ... -
Membrane contactor for subsea natural gas dehydration: Model development and sensitivity study
(Journal article; Peer reviewed, 2018)A mathematical model of a membrane contactor using triethylene glycol (TEG) for dehydration of natural gas at subsea operation conditions has been developed. The goal for the membrane contactor is to dehydrate the natural ...