Browsing Institutt for kjemisk prosessteknologi by Title
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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 ... -
Membrane Contactors for Post-Combustion CO2 Capture: Model Development, Sensitivity Analysis, and Application to CO2 Capture from a Coal-fired Power Plant
(Journal article, 2022)A hollow fiber membrane contactor (HFMC) model for CO2 absorption using monoethanol amine (MEA) as an absorbent is developed based on a one-dimensional-two-dimensional modeling approach, where plug flow is assumed in the ... -
Membrane fabricated via a facile non-solvent induced microstructure re-arrangement with superior CO<inf>2</inf> separation performances
(Journal article; Peer reviewed, 2023)CO2 capture and storage (CCS) is taken as an immediate solution to mitigate the impactof increasing atmospheric CO2 on global climate change, and CO2 separation using high-performance membranes is considered a green and ... -
Membrane process design for biohydrogen purification with simultaneous CO2 capture: Feasibility and techno-economic assessment
(Peer reviewed; Journal article, 2023)In this work, a membrane separation process is designed and optimized to purify dark fermentative biohydrogen by removing CO2. A CO2-selective PVAm-based nanocomposite membrane was selected considering its high CO2/H2 ... -
Membrane Separation of Anions in Concentrated Electrolytes
(Dr. ingeniøravhandling, 0809-103X; 2001:83, Doctoral thesis, 2001) -
Membrane Separation of Natural Gas at Tjeldbergodden
(Master thesis, 2009) -
Membranes and membrane processes for CO<inf>2</inf> separation: MEMFO's long-term effort in reducing carbon emissions
(Journal article; Peer reviewed, 2024)Urgent actions are needed to reduce CO2 emissions and mitigate the increasingly severe impacts of climate change. Since the 1990s, the membrane research group (MEMFO) at the Norwegian University of Science and Technology ... -
Membranes for CO<inf>2</inf> capture and separation: Progress in research and development for industrial applications
(Peer reviewed; Journal article, 2024) -
Membranes for Environmentally Friendly Energy Processes
(Journal article; Peer reviewed, 2012) -
Mercury Behaviour in Gas-Condensate-Monoethylene Glycol (MEG) Systems
(Master thesis, 2016)Gas and condensate production gets more challenging as the exploration takes place in deeper and in lower quality reservoirs. Under certain conditions, hydrate plugging is a major problem, causing damages to pipes and ...