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Practical control of dividing-wall columns
(Chapter, 2010)This paper studies the practical implementation of stabilizing control for a Kaibel dividing-wall column. Control configurations with varying number of temperature loops are tested and compared with special attention to ... -
Precipitation in Carbon Dioxide Capture Processes
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:137, Doctoral thesis, 2014)Climate change as a result of the greenhouse effect has become a global issue from both technical and political perspectives. Carbon dioxide (CO2), produced from fossil-fuelled power plants, gas sweetening processes and ... -
Precipitation of carbonates in the pretreatment process for regeneration of ethylene glycol
(Master thesis, 2011)Ethylene Glycol regeneration is an important process in natural gas production. This work aims at defining the best parameters with which this process can be achieved using a new process developed by Statoil. -
Precipitation of silver particles with controlled morphologies from aqueous solutions
(Journal article; Peer reviewed, 2019)Synthesis of silver particles with controlled morphologies enables their use in a variety of applications. Although several synthetic approaches have been developed to successfully modify the final particle shape, the ... -
Predicting aerosol size distribution development in absorption columns
(Journal article; Peer reviewed, 2018)There are two main mechanisms for amine emissions from absorption columns. The first is connected to the volatility of amine, determining the gaseous concentration. The second mechanism is via aerosol droplets containing ... -
Predicting Silica Deposition from Superheated, Pressurized Steam Using Numerical Modeling of Nucleation, Agglomeration and Deposition
(Peer reviewed; Journal article, 2023)A model that can be used to quantify silica deposition from superheated depressurized steam is developed. Classical nucleation theory, agglomeration and deposition onto a wall are combined in a numerical model that calculates ... -
Predicting solvent degradation in absorption–based CO2 capture from industrial flue gases
(Peer reviewed; Journal article, 2023)This work aims to predict solvent degradation rates in absorption-based CO2 capture processes using a 30 wt% aqueous monoethanolamine (MEA) solvent. A degradation model for MEA is developed and used to predict solvent ... -
Prediction of CO2 solubility in deep eutectic solvents using random forest model based on COSMO-RS-derived descriptors
(Journal article; Peer reviewed, 2021) -
Prediction of coalescence and rebound of fluid particles in non-Newtonian media through film drainage modeling
(Master thesis, 2023)The drainage of a non-Newtonian film entrapped between two fluid particles that are moving toward one another with time-dependent velocities, causing either coalescence and rebound, is examined in this thesis. Attention ... -
Preparation and characterization of Cu- and Pt-based water-gas shift catalysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:123, Doctoral thesis, 2008) -
Preparation and Characterization of Nanosized Structures with Applications in Bioscience and Materials
(Doktoravhandlinger ved NTNU, 1503-8181; 2004:82, Doctoral thesis, 2004)The so-called bottom-up approach to the fabrication of nanostructures from stable building blocks has become a popular theme in current science and engineering. This construction principle mimics e.g. biological systems ... -
Preparation and characterization of pelletized Mn-based sulfur sorbents
(Master thesis, 2021)The global energy situation is changing slowly into new sustainable patterns of production and consumption. However, fossil fuels still lead the world energy outlook, covering more than 80% of the energy mix. Between other ... -
Preparation and Optimization of a Membrane for 3rd Generation Solvent Membrane Contactor
(Master thesis, 2016)Third generation solvent is a new class of CO2 absorbents with a great potential in terms of reduction of the regeneration energy requirement for post combustion carbon capture, but their use at the industrial scale is ... -
Preparation of Carbon Molecular Sieve Membranes with Remarkable CO2/CH4 Selectivity for High-pressure Natural Gas Sweetening
(Peer reviewed; Journal article, 2020)Carbon hollow fiber membranes (CHFMs) were fabricated based on cellulose hollow fiber precursors spun from a cellulose/ionic liquid system. By a thermal treatment on the precursors using a preheating process before ... -
Preparation of cellulose nanofibrils for imaging purposes: comparison of liquid cryogens for rapid vitrification
(Journal article; Peer reviewed, 2018)Artifact-free imaging of cellulose nanofibrils (CNFs) from aqueous nanocellulose suspensions is nontrivial due to frequent irreversible agglomeration and structure damage during the course of sample preparation, especially ... -
Preparation of PVAm/PSf composite hollow fibers for flue gas applications
(Master thesis, 2012)Polysulfone (PSf) hollow fibres as support for Fixed-Site-Carrier (FSC) polyvinylamine (PVAm)/PSf composite membranes used for CO2 capture were attempted optimized by increasing the air gap and take-up speed during spinning. ... -
Preparing a thermodynamic framework for CO2 capture process
(Doctoral theses at NTNU;2016:283, Doctoral thesis, 2016)Summary of thesis: Climate change, with more than 95% certainty, see IPCC 2014, is happening because of anthropogenic CO2 emissions. The easiest and fastest way to cut emissions is CO2 capture and storage. Post combustion ... -
Preperation and characterization of Cu- and Pt-based water-gas shift cataysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:123, Doctoral thesis, 2008) -
Pressure Retarded Osmosis and Forward Osmosis Membranes: Materials and Methods
(Journal article; Peer reviewed, 2013)In the past four decades, membrane development has occurred based on the demand in pressure driven processes. However, in the last decade, the interest in osmotically driven processes, such as forward osmosis (FO) and ... -
Pressurized Reduction of Cu-ZnO Water-Gas Shift Catalysts in Presence of Water
(Master thesis, 2015)CuO/ZnO/Al2O3 is a commonly used catalyst for the commercialized water gas shift reaction. Prior to industrial use, CuO has to be reduced to the active metallic copper phase. Yara has experienced major issues as a consequence ...