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The Impact of Operating Parameters on the Gas-Phase Sulfur Concentration after High Temperature Sulfur Sorption on a Supported Mo-Mn Sorbent
(Journal article; Peer reviewed, 2021)The impact of operating parameters on H2S capture from a syngas mixture by a Mo-promoted Mn-based high-temperature sorbent was investigated. The parameters investigated included temperature, space velocity, H2S concentration ... -
Impact of Solvent on the Thermal Stability of Amines
(Peer reviewed; Journal article, 2022)Water-lean solvents have been proposed as a possible alternative to aqueous amine systems in postcombustion carbon capture. There is however little data available on how amine degradation is affected by different solvents. ... -
Implementation and evaluation of a new solution approach for semidefinite programming
(Master thesis, 2017)The main objective of this thesis was to perform initial studies on a new approach for solving semidefinite programs. In this solution method, a nonsmooth representation of the optimality conditions of semidefinite programs ... -
Implementation and Performance Analysis of Interior-Point Methods for Solving Mathematical Programs with Complementarity Constraints
(Master thesis, 2023)Denne avhandlinga tar for seg implementering og evaluering av løysningsmetodar for matematiske program med komplementaritetsavgrensingar, også kjent som MPCC. Desse løysningsmetodane baserer seg på ein bestemt ... -
Implementation of Extremum Seeking Control in an Experimental Lab-Rig
(Master thesis, 2021)I denne oppgaven implementeres Extremum seeking control (ESC) i en eksperimentell lab-rig som representerer et gassløftnettverk med tre brønner. ESC er en fullstendig datadrevet optimeringsmetode, der gradientene til ... -
Implementation of Real Time Optimization in an Experimental Lab Rig via Output Modifier Adaptation using Gaussian Processes
(Master thesis, 2022)I denne oppgaven blir Real Time Optimization (RTO) via Output Modifier Adaptation med Gaussian Processes (MAy-GP) implementert i en eksperimentell lab rigg. Riggen representerer et nettverk bestående av tre oljebrønner med ... -
Important Aspects Regarding the Chemical Stability of Aqueous Amine Solvents for CO2 Capture
(Journal article; Peer reviewed, 2022)The chemical stability of aqueous amines is an essential property to study before new amines are introduced in pilot plants, to reduce risks related to the operation, cost and environment. There are no standard methods for ... -
Improved lifetime and stability of copper species in hierarchical, copper-incorporated CuSAPO-34 verified by catalytic model reactions
(Peer reviewed; Journal article, 2021)The first successful synthesis of hierarchical CuSAPO-34 (3.9 wt% Cu) is reported using the polymer Pluronic F127 as a mesoporous structure directing agent (SDA). X-Ray absorption spectroscopy (XAS) revealed single site ... -
Improved Methods for Characterizing Emulsions by Low‑Resolution Nuclear Magnetic Resonance via Surface Relaxation and One‑Dimensional Images
(Peer reviewed; Journal article, 2023)The use of nuclear magnetic resonance (NMR) is an appropriate tool for studying colloids in a non-invasive manner. Droplet size distributions and one-dimensional sample profiles are readily produced to characterize an ... -
Improved Methods for Characterizing Emulsions by Low‑Resolution Nuclear Magnetic Resonance via Surface Relaxation and One‑Dimensional Images
(Peer reviewed; Journal article, 2023)The use of nuclear magnetic resonance (NMR) is an appropriate tool for studying colloids in a non-invasive manner. Droplet size distributions and one-dimensional sample profiles are readily produced to characterize an ... -
Improved PI control for a surge tank satisfying level constraints
(Journal article; Peer reviewed, 2018)This paper considers the case of averaging level control, where the main objective is to reduce flow variations by using varying liquid levels. However, to avoid overfilling or emptying the tank, the liquid level needs to ... -
Improved selectivity and coke resistance of core-shell alloy catalysts for propane dehydrogenation from first principles and microkinetic analysis
(Journal article; Peer reviewed, 2018)Microkinetic analysis combined with the results obtained from density functional theory calculations has been performed to examine the catalytic activity and selectivity of Pt-based core-shell alloy catalysts for propane ... -
Improving carbon efficiency and profitability of the biomass to liquid process with hydrogen from renewable power
(Journal article; Peer reviewed, 2018)A process where power and biomass are converted to Fischer-Tropsch liquid fuels (PBtL) is compared to a conventional Biomass-to-Liquid (BtL) process concept. Based on detailed process models, it is demonstrated that the ... -
Improving Scenario Decomposition for Multistage MPC using a Sensitivity-based Path-following Algorithm
(Journal article; Peer reviewed, 2018)This letter proposes a computationally efficient algorithm for robust multistage scenario model predictive control (MPC). In multistage scenario MPC, the evolution of uncertainty in the prediction horizon is represented ... -
In situ characterization of industrial catalysts with Raman spectroscopy
(Master thesis, 2018)Raman spectroscopy is one of the most powerful characterization methods for in situ Raman study of catalytic materials and surfaces under working conditions. The use of Raman spectroscopy in catalytic NO oxidation would ... -
In-situ potassium poisoning on cobalt-based catalysts for Fischer-Tropsch synthesis
(Master thesis, 2023)I dag er det et faktum at etterspørselen etter energi øker, og det forventes at den vil fortsette å øke. I tillegg opplever verden nå en energikrise, både økonomisk og miljømessig. Derfor er det viktig å erstatte fossilt ... -
Incoporating Ammonia Synthesis for an Offshore Gas-to-Liquid Process
(Master thesis, 2016)The world energy demand is increasing, and so is the demand for fertilizer to sustain an exponential population growth. Currently, with low oil prices, asso- ciated natural gas is flared off or re-injected into oil reservoirs ... -
Incorporation of an ionic liquid into a midblock-sulfonated multiblock polymer for CO2 capture
(Journal article; Peer reviewed, 2019)In the present work, hybrid block ionomer/ionic liquid (IL) membranes containing up to 40 wt% IL are prepared by incorporating 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4]) into a midblock-sulfonated pentablock ... -
Incorporation of Fe@Au nanoparticles into multiresponsive pNIPAM-AAc colloidal gels modulates drug uptake and release
(Journal article; Peer reviewed, 2016)Here, a synthetic method has been optimized for the synthesis of thermoresponsive and pH-responsive poly(N-isopropylacrylamide-co-acrylic acid) nanogels which are subsequently loaded with cytochrome C by using a modified ...