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Development of Structural Characterization Methods for Polyvinyl Alcohol (PVA)/Nanocellulose Composite Membranes
(Master thesis, 2016)Structural characterization of polyvinyl alcohol (PVA)/nanocellulose films by scanning electron microscopy (SEM) generally only provides an qualitative estimate of how well the nanocellulose is distributed, and is not ... -
Development of Visible Light-Responsive Photocatalysts for Hydrogen Production from Glycerol
(Master thesis, 2016)Different catalyst preparation methods were performed. In the case of TiO2, the cocatalyst was deposited on commercial TiO2-P25 by wet impregnation. Cu-loaded and Pt-loaded TiO2 was achieved by calcination in static air ... -
Different shaped hybrid nanocarriers for theranostic applications
(Master thesis, 2016)Nanomaterials have gained a lot of attention in the past few decades as potential candidates for biomedical applications. They are being used as smart drug delivery vehicles among other applications such as wound dressing, ... -
A Diffusion Model to Quantify Membrane Repair Process in Listeria Monocytogenes Exposed to High Pressure Processing based on Fluorescence Microscopy Data
(Peer reviewed; Journal article, 2021)The effects of environmental stresses on microorganisms have been well-studied, and cellular responses to stresses such as heat, cold, acids, and salts have been extensively discussed. Although high pressure processing ... -
Direct dimethyl ether synthesis from synthesis gas: The influence of methanol dehydration on methanol synthesis reaction
(Journal article; Peer reviewed, 2016)Direct dimethyl ether (DME) synthesis from synthesis gas is studied with regard to potential effects of methanol dehydration on methanol formation and copper-based catalyst performance. For this, the influence of the ... -
Direct hydrogenation of carbon dioxide to methanol: Systematic generation of multi-stage designs
(Peer reviewed; Journal article, 2023)Commercial methanol catalysts based on Cu/ZnO/Al2O3 are less effective applied to direct hydrogenation of CO2 to methanol. The main reason is that the catalyst deactivation increases with the water pressure and temperature, ... -
Direct Lithium Extraction from Lithium-Ion Batteries of Electrical Vehicles
(Master thesis, 2023)Litium-ion-batterier har dominert elbilmarkedet som et resultat av deres høye energitetthet og gode elektrokjemisk ytelser. Den økende etterspørselen etter litium-ion-batterier er i stor grad drevet av elektrifiseringen i ... -
Direct Non-Oxidative Conversion of Methane to C2 Hydrocarbons, Aromatics and Hydrogen
(Master thesis, 2017)Catalytic activity of Fe/HZSM-5 and Mo/HZSM-5 during methane dehydroaromatization was investigated. The catalysts were prepared by wet impregnation method, calcinated in air flow, tested in laboratory reactor and characterized ... -
Direct Nonoxidative Conversion of Methane to C2 Hydrocarbons, Aromatics and Hydrogen
(Master thesis, 2016)Natural gas contains a large quantity of methane that is valuable as a fuel source. However, it can also be converted to light olefins, but the present synthesis route includes the conversion into synthesis gas. This is ... -
Direct Synthesis of Dimethyl Ether in Microstructured Reactors
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:81, Doctoral thesis, 2011) -
Direct Synthesis of Dimethyl Ether in Microstructured Reactors: The Interactions Between Methanol Synthesis and Methanol Dehydration
(Doctoral thesis at NTNU;2016:179, Doctoral thesis, 2016)The growing concerns about the climate change, energy security and the diminishing oil reserves, stimulate the search for alternative energy sources and non-petroleum-based fuels. Natural gas in the short-term, and biomass ... -
Dissipation rate estimation in a rectangular shaped test section with periodic structure at the walls
(Journal article; Peer reviewed, 2018)An experimental study of turbulent flow concerning the characterization of turbulence by two-point correlation and estimations of the turbulent dissipation rate is presented. The fluid used is deionized water and the test ... -
A distributed feedback-based online process optimization framework for optimal resource sharing
(Peer reviewed; Journal article, 2021)Distributed real-time optimization (RTO) enables optimal operation of large-scale process systems with common resources shared across several clusters. Typically in distributed RTO, the different subsystems are optimized ... -
Distributed Feedback-Optimizing Control Strategies: an Experimental Validation
(Master thesis, 2023)I industrielle settinger består prosesser ofte av flere undersystemer som deler en felles begrensning, for eksempel en delt ressurs. Denne oppgaven fokuserer på steady-state sanntidsoptimalisering (RTO) problemet i et ... -
Distributed optimization using ADMM for Optimal Design of Thermal Energy Storage systems
(Master thesis, 2020)Hovedmålet vårt i begynnelsen av forskningsperioden har vært å benytte den alternerende retningsmetoden til multiplikatorer (ADMM) for å få en distribuert optimaliseringsalgoritme for å løse strukturerte ikke-lineære ... -
Dividing wall columns for natural gas liquefaction plants
(Journal article; Peer reviewed, 2018)In order to meet current carbon dioxide emissions reduction challenges, natural gas processing and refining industries have to find the ways to minimize energy requirements of distillation operations. Building on foundations ... -
Dolomite-based Sorbents for High Temperature Carbon dioxide capture.
(Master thesis, 2017)The impact of doping with inert oxides on the long term performance of dolomite-based sorbents for high temperature CO_2 has been investigated in this work. Arctic dolomite was doped with with various oxides Al2O3, ZrO_2, ... -
Doped carbon nanostructures as metal-free catalysts for oxidative dehydrogenation of light alkanes
(Master thesis, 2014)Catalytic reactions are often carried out on various supported metals, these usually being noble metals or metal oxides. Even though metal based catalysts plays a major role in today s industrial processes, they still have ... -
Droplet breakup and coalescence in compact wellstream seperation
(Dr. ingeniøravhandling, 0809-103X; 2000:2, Doctoral thesis, 2000) -
Droplet Crystallization in Water-in-Crude Oil Emulsions: Influence of Salinity and Droplet Size
(Journal article; Peer reviewed, 2017)Ice crystallization in confined spherical geometries is investigated experimentally at ambient pressure conditions. Water-in-crude (w/o) oil emulsions are formed by homogenization of an acidic North Sea crude oil with water ...