Blar i Institutt for kjemisk prosessteknologi på tittel
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An Experimental Study of the Phase Separation Phenomenon and Dewatering Technique of Pyrolysis Oil
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:60, Doctoral thesis, 2014)Fast pyrolysis is a promising technology for cost-efficient conversion of biomass into renewable liquid fuels. However, development of pyrolysis oils as a fuel is incomplete. Issues of phase separation and alteration of ... -
An investigation of fundamental phenomena affecting the performance of sputtered Pd alloy thin film membranes for hydrogen separation
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:165, Doctoral thesis, 2014)Pure hydrogen flux has been obtained for sputtered Pd77%Ag23% membranes with thickness of 2.2-11.2 μm. A general thickness dependent behaviour is observed upon permeation under hydrogen. However, permeability is not constant ... -
An ITC and NMR study of interaction and complexation of asphaltene model compounds in apolar solvent I: Self-association pattern
(Journal article; Peer reviewed, 2016)The self-association pattern of asphaltene model compounds with different functional groups in xylene and mixtures of xylene and heptane have been studied by isothermal titration calorimetry (ITC) to shed new light on the ... -
An ITC study of interaction and complexation of asphaltene model compounds in apolar solvent II: Interactions with asphaltene inhibitors
(Journal article; Peer reviewed, 2016)The interaction and complexation of asphaltene model compounds containing functional groups with other crude oil compounds in a mixture of xylene and heptane have been studied to shed new light on the association and ... -
An object-oriented framework for the optimization of flexible renewable energy systems
(Master thesis, 2021)Denne masteravhandlingen beskriver et objektorientert modelleringsrammeverk som et grens- esnitt mellom en modell av ett energisystem og den stokastiske programmeringsprogram- varen GOSSIP. Viktige usikkerheter knyttet til ... -
Analysis and selection of optimal solvent-based technologies for biogas upgrading
(Journal article; Peer reviewed, 2021)Biogas upgrading is an important industrial process for producing biomethane, a sustainable energy source with low carbon footprint. There are three main solvent-based alternatives for biogas upgrading: water scrubbing, ... -
Analysis of CO2 Facilitation Transport Effect through a Hybrid Poly(Allyl Amine) Membrane: Pathways for Further Improvement
(Peer reviewed; Journal article, 2020)Numerous studies have been reported on CO2 facilitated transport membrane synthesis, but few works have dealt with the interaction between material synthesis and transport modelling aspects for optimization purposes. In ... -
Analysis of temporal gene regulation of Listeria monocytogenes revealed distinct regulatory response modes after exposure to high pressure processing
(Peer reviewed; Journal article, 2021)Background The pathogen Listeria (L.) monocytogenes is known to survive heat, cold, high pressure, and other extreme conditions. Although the response of this pathogen to pH, osmotic, temperature, and oxidative stress has ... -
Anti-Slug Control Experiments Using Nonlinear Observers
(Journal article; Peer reviewed, 2013)Abstract: To prevent slug-flow on offshore oil production units, controlling a subsea pressure is the recommended solution. However, the subsea pressure is not often available as a measurement. The top-side pressure is ... -
Applicability of enhancement factor models for CO2 absorption into aqueous MEA solutions
(Journal article, 2017)In many chemical industrial processes, mass transfer across gas-liquid interfaces accompanied by chemical reaction is the governing phenomena. In case of mass transfer accompanied by a chemical reaction in the liquid phase, ... -
Application of a Pseudo-Kinetic Generalized Serverity Model to the Concentrated Sulfuric Acid Hydrolysis of Pinewood and Aspenwood
(Journal article; Peer reviewed, 2012)The yield of monosaccharides after two-stage concentrated sulfuric acid hydrolysis of softwood (Scots pine) and hardwood (trembling aspen) was modeled using a generalized severity parameter with a time-independent rate ... -
Application of an ontology based process model construction tool for active protective coatings: Corrosion inhibitor release
(Chapter, 2021)Ontology-based integrated materials modelling for an active protective coating system design is presented and applied to a practical example. For this purpose, an ontological methodology implemented using the ProMo (Process ... -
Application of artificial neural networks and control for recirculating aquaculture systems
(Master thesis, 2021)Abstract will be available on 2024-06-09 -
Application of biopolymer schizophyllan derived from local sources in Malaysia for polymer flooding operation
(Peer reviewed; Journal article, 2022)After the application of primary and secondary recovery methods, a significant amount of oil gets left behind in the reservoir. Thus, Enhanced Oil Recovery (EOR) methods are the only viable options. Polymer flooding has ... -
Application of Discrete-Event Dynamic Systems in Plant Analysis and Control
(Master thesis, 2017)Chemical process plants typically follows continuous dynamics. However, for various plant operations like start-up, shut-down and maintaining safe operability, it is necessary to obtain information about the discrete state ... -
Application of hot-wire anemometry for experimental investigation of flow distribution in micro-packed bed reactors for synthesis gas conversion
(Journal article; Peer reviewed, 2018)The knowledge of the flow distribution inside microstructured reactors is valuable e.g. for improving the reactor design, developing flow distributors, and optimizing the catalyst loading method. The applicability of the ... -
Application of iron oxide nanoparticles in oil recovery – A critical review of the properties, formulation, recent advances and prospects
(Peer reviewed; Journal article, 2022)Iron oxide nanoparticles (IONPs) are of particular interest in multiple fields and in enhanced oil recovery (EOR) due to their unique advantages and characteristics. Albeit several laboratory research articles on IONPs in ... -
Application of Machine Learning in Economic Optimization
(Master thesis, 2021)In this thesis, we introduced two new applications of Machine Learning in the field of Economic Optimization. The first application addresses the problem of searching for global Self-Optimizing variables. We applied Genetic ... -
An approach for VLE model development, validation, and implementation in Aspen Plus for amine blends in CO2 capture: the HS3 solvent case study
(Journal article; Peer reviewed, 2023)Carbon Capture and Storage (CCS) using chemical absorption is a viable method to significantly cut CO2 emissions in the industrial and energy sectors. However, further development of improved absorbents is necessary to ... -
Aqueous Mapa, DEEA, and Their Blend as CO2 Absorbents: Interrelationship between NMR Speciation, pH, and Heat of Absorption Data
(Journal article; Peer reviewed, 2019)On the basis of speciation by nuclear magnetic resonance (NMR) spectroscopy, heat of absorption, and pH data, the reactions occurring in aqueous MAPA (3-(methylamino)propylamine), DEEA (2-(diethylamino)ethanol), and their ...