Institutt for kjemisk prosessteknologi
Nye registreringer
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Transformed Manipulated Variables for Linearization, Decoupling and Perfect Disturbance Rejection
(Journal article; Peer reviewed, 2020) -
Stability of Structurally Varied Aqueous Amines for CO2 Capture
(Peer reviewed; Journal article, 2021)Eighteen structurally varied amines were subjected to harsh oxidative conditions, and their stability was assessed and seen in the context of biological and thermal stability. Steric effects play a large role in the ... -
Screening of Inhibition of Calcium Naphthenate Deposition in Crude Oil
(Peer reviewed; Journal article, 2021)One of the initial steps in calcium naphthenate deposition is the reaction between ARN and Ca2+ leading to the formation of an interfacial gel. After growing, this gel will form calcium naphthenate deposits that are a ... -
Fundamentals and physical principles for drilled cuttings transport – Cuttings bed sedimentation and erosion
(Peer reviewed; Journal article, 2021)The increasing necessity of challenging wellbore structures and drilling optimization for improved hole cuttings cleaning has been growing along time. As a result, operator companies have been researching and applying ... -
Wet Drilled Cuttings Bed Rheology
(Peer reviewed; Journal article, 2021)The cuttings transport efficiency of various drilling fluids has been studied in several approaches. This is an important aspect, since hole cleaning is often a bottleneck in well construction. The studies so far have ... -
UV degradation of natural and synthetic microfibers causes fragmentation and release of polymer degradation products and chemical additives
(Peer reviewed; Journal article, 2020)A high proportion of the total microplastic (MP) load in the marine environment has been identified as microfibers (MFs), with polyester (PET) and polyamide (PA) typically found in the highest abundance. The potential for ... -
Comparing C5Pe and Asphaltenes under Temperature and Pressure Reservoir Conditions Using an Acoustic Wave Sensor
(Peer reviewed; Journal article, 2021)A quartz crystal resonator (QCR) was employed to assess the ability of the C5Pe model asphaltene compound to form nanoaggregates in toluene and bigger flocs that adsorb on the QCR surfaces at a higher concentration of ... -
Optimal scheduling of flexible thermal power plants with lifetime enhancement under uncertainty
(Peer reviewed; Journal article, 2021)Renewable energy sources have been the focal point to decarbonise the power sector. The large deployment of these intermittent power generation units requires mechanisms to balance the grid. Thermal power plants can provide ... -
Investigations of molybdenum-promoted manganese-based solid sorbents for H2S capture
(Peer reviewed; Journal article, 2020)The promotion effect of Mo-addition to alumina-supported Mn-based sorbents for high-temperature desulphurization was explored. A series of Mn-based sorbents with fixed Mn-loading and different Mo-loadings were prepared by ... -
Assessing the Interfacial Activity of Insoluble Asphaltene Layers: Interfacial Rheology versus Interfacial Tension
(Peer reviewed; Journal article, 2020)Asphaltenes have been suggested to play an important role in the remarkable stability of some water-in-crude oil emulsions, although the precise mechanisms by which they act are not yet fully understood. Being one of the ... -
Enhanced Visible Light Absorption TiO2 Based Catalysts for Photocatalytic H2 Generation
(Doctoral theses at NTNU;2021:90, Doctoral thesis, 2021)Photocatalytic H2 generation from water, by utilizing semiconductors, is attractive process as the energy needed to break two chemical bonds of water and to form a chemical bond between hydrogen atoms is provided by the ... -
Evaluating the possibility of high-pressure desorption of CO2 via volatile co-solvent injection
(Peer reviewed; Journal article, 2021)This work evaluates the possibility of employing a volatile co-solvent injection for recovering CO2 from loaded monoethanolamine at 120 °C under pressures above those achievable through regular desorption processes. This ... -
Model predictive control for combined cycles integrated with CO2 capture plants
(Peer reviewed; Journal article, 2021)Flexible thermal power plants integrated with CO2 capture systems can balance the intermittent power generation of renewable energy sources with low-carbon electricity. Among these power systems, natural gas combined cycles ... -
Transient system-level performance and thermo-mechanical stress analysis of a solid oxide fuel cell-based power generation plant with a multi-physics approach
(Journal article; Peer reviewed, 2020)A solid oxide fuel cell-based (SOFC) power generation plant is analyzed with a view to performance as well as thermo-mechanical stresses. Emphasis is given to design and operation constraints of individual components as ... -
Novel Approaches in Robust Multistage Nonlinear Model Predictive Control
(Doctoral theses at NTNU;2021:51, Doctoral thesis, 2021)A powerful tool that has been widely used for control and optimization in the chemical process industry is model predictive control (MPC), thanks to its capacity for handling multivariable constrained control problems. ... -
High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
(Peer reviewed; Journal article, 2021)Background High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries ... -
Origin of potassium promotion effects on CuCl2/gamma-Al2O3 catalyzed ethylene oxychlorination
(Peer reviewed; Journal article, 2020)Potassium promoters are widely used in industrial catalysts of ethylene oxychlorination to achieve optimum performance. However, the origin of the promoter effect is not fully understood. Herein, we investigated the potassium ... -
Polymeric 3D scaffolds for tissue regeneration: Evaluation of biopolymer nanocomposite reinforced with cellulose nanofibrils
(Peer reviewed; Journal article, 2019)Biopolymers such as gelatin (Gel) and cellulose nanofibrils (CNF) have many of the essential requirements for being used as scaffolding materials in tissue regeneration; biocompatibility, surface chemistry, ability to ... -
Modeling the dynamic evolution of drop size density distribution of the oil-water emulsion in turbulent pipe flow
(Doctoral theses at NTNU;2021:94, Doctoral thesis, 2021)The thesis presents a modelling approach to calculate and fit the evolution of the drop size distributions of oil and water emulsions under turbulent flow in pipes. A simulation model is developed to investigate coalescence ... -
High-pressure processing-induced transcriptome response during recovery of Listeria monocytogenes
(Peer reviewed; Journal article, 2021)Background: High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes. It has been shown that L. monocytogenes is able to recover from HPP injuries ...
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