Blar i Institutt for kjemisk prosessteknologi på tittel
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Thermal degradation on already oxidatively degraded solutions
(Journal article; Peer reviewed, 2013)CO2 capture with alkanolamines has been in use since 1930, where 2-ethanolamine (MEA) is the most studied absorbent for post-combustion. In order to prevent degradation, it is important to understand the degradation ... -
Thermal degradation study by continuous thermal stability rig
(Master thesis, 2013)This investigation was done at NTNU and together with Statoil research and development department in Rotvoll, Trondheim to facilitate a new semi dynamic amine thermal degradation rig.This study was an initial attempt to ... -
Thermal oxidation of polyolefins by mild pro-oxidant additives based on iron carboxylates and lipophilic amines: Degradability in the absence of light and effect on the adhesion to paperboard
(Journal article; Peer reviewed, 2015)Marine and inland pollution by non-degradable plastic bags and other plastic articles is a topic of great concern. Natural degradation processes based on oxidation of plastic pollutants could possibly contribute to limit ... -
Thermal stability and corrosion of tertiary amines in aqueous amine and amine-glycol-water solutions for combined acid gas and water removal
(Journal article; Peer reviewed, 2018)Thermal stability and corrosion of seven tertiary amines (20 wt.%) solutions in water and water-glycol [ethylene glycol (MEG)/tri-ethylene glycol (TEG)] loaded with CO2 in stainless steel reactors has been studied for ... -
Thermo-Fluidic Characteristics of Two-Phase Ice Slurry Flows Based on Comparative Numerical Methods
(Journal article; Peer reviewed, 2019)Ice slurry is a potential secondary refrigerant for commercial refrigeration systems because of its remarkable thermal properties. It is necessary to optimize the heat transfer process of ice slurry to reduce the energy ... -
Thermodynamic Analysis of Heat and Mass Transfer Using Entropy Production Formalism
(Master thesis, 2015)The understanding of irreversible phenomena in the world around us is of great importance -- not only for the intrinsic value of such understanding, but also for the industrial applications and technological benefits such ... -
Thermodynamic Insight in Design of Methanation Reactor with Water Removal Considering Nexus between CO2 Conversion and Irreversibilities
(Journal article; Peer reviewed, 2021)The inevitable nexus between energy use and CO2 emission necessitates the development of sustainable energy systems. The conversion of CO2 to CH4 using green H2 in power-to-gas applications in such energy systems has ... -
Thermodynamic modelling of unloaded and loaded N,N-diethylethanolamine solutions
(Peer reviewed; Journal article, 2016)Chemical absorption is a crucial step for several chemical processes such as ammonia production, coal gasification, methane reforming, ethylene oxide manufacturing and treatment of associated gas streams [1]. It is considered ... -
Thermodynamic models for CO2absorption
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:130, Doctoral thesis, 2010)The most mature technology for capturing CO2 in industrial power generation processes is absorption by aqueous alkanolamines. These processes are governed with both phase and chemical equilibrium; the representation of ... -
Thermodynamically consistent vapor-liquid equilibrium modelling with artificial neural networks
(Journal article; Peer reviewed, 2023) -
Thermodynamics of an Empty Box
(Peer reviewed; Journal article, 2023)A gas in a box is perhaps the most important model system studied in thermodynamics and statistical mechanics. Usually, studies focus on the gas, whereas the box merely serves as an idealized confinement. The present article ... -
Thermodynamics of the carbon dioxide plus nitrogen plus methane (Co2 + N2 + Ch4) system: Measurements of vapor-liquid equilibrium data at temperatures from 223 to 298 K and verification of EOS-CG-2019 equation of state
(Journal article; Peer reviewed, 2019)Vapor-liquid equilibria (VLE) data of the ternary mixture of CO2 + N2 + CH4 were measured at the isotherms 223 K, 253 K, 273 K, 283 K, and 298 K and for pressures in the range of 0.8 MPa–9.3 MPa. The 62 experimental dew ... -
Thermopervaporation for regeneration of triethylene glycol (TEG):Experimental and model development
(Journal article; Peer reviewed, 2019)Subsea processing is getting increased interest in the oil and gas sector as it can provide broader exploration of the oil and gas with a lower environmental footprint. Dehydration of natural gas with the use of triethylene ... -
Thickness dependent effects of solubility and surface phenomena on the hydrogen transport properties of sputtered Pd77%Ag23% thin film membranes
(Journal article; Peer reviewed, 2015)The hydrogen solubility and permeation in Pd77%Ag23% membranes have been determined as a function of temperature and membrane thickness. Unexpectedly, the solubility of hydrogen is found to systematically increase as the ... -
Thin film nanocomposite membranes fabricated via 2D ZIF-67 nanosheets and 1D nanofibers with ultrahigh water flux for dye removal from wastewater
(Journal article; Peer reviewed, 2024)Thin-film nanocomposite (TFN) membranes based on metal–organic frameworks (MOFs) have received increasing attention in the field of water treatment. However, TFN membranes with both high permeance and rejection rates are ... -
Thin-film-composite hollow fiber membranes containing amino acid salts as mobile carriers for CO2 separation
(Journal article; Peer reviewed, 2019)In this work, defect-free thin-film-composite (TFC) hollow fiber membranes containing various amino acid salts as CO2 facilitated transport carriers were fabricated via dip-coating. Four different amino acid salts, i.e., ... -
Three-phase Hybrid Facilitated Transport Hollow Fiber Membranes for Enhanced CO2 Separation
(Peer reviewed; Journal article, 2020)The configuration of thin film composite (TFC) in the form of hollow fiber is desired for gas separation membranes to achieve better gas permeation and higher packing density. In this work, we developed and tested TFC ... -
Time Constant Considerations for a Simplified Charcoal Fired Furnace
(Master thesis, 2017)A mathematical model for a spherical control volume containing a combustion chamber buried in moist sand was derived based on the thermodynamic laws for heat transfer. The combustion chamber holds an iron core and a ... -
Toolbox for generation of nonlinear control models for semi-batch emulsion polymerization reactors
(Master thesis, 2011)The objective of this thesis was the study of emulsion polymerization and to model a complete, dynamic mathematical model of this process. Several variables that influence polymerization rate have been modeled with different ... -
Topical application of retinyl palmitate-loaded nanotechnology-based drug delivery systems for the treatment of skin aging
(Journal article; Peer reviewed, 2014)The objective of this study was to perform a structural characterization and evaluate the in vitro safety profile and in vitro antioxidant activity of liquid crystalline systems (LCS) with and without retinyl palmitate ...