Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 1423-1442 of 1755
-
Safety aspects of maritime hydrogen fuel from local sorption-enhanced ethanol steam reforming
(Master thesis, 2020)Damp reformering av etanol med integrert CO2-fangst, såkalt sorption-enhanced ethanol steam reforming (SEESR), har potensiale til å effektivt konvertere etanol til hydrogen. I denne masteroppgaven vurderes sikkerhetsaspekter ... -
SbOx‐promoted pt nanoparticles supported on CNTs as catalysts for base‐free oxidation of glycerol to dihydroxyacetone
(Journal article; Peer reviewed, 2018)Understanding of selective base‐free oxidation of glycerol to dihydroxyacetone (DHA) over Pt‐based catalysts is of paramount scientific and industrial importance. In this work, a comparative study between differently sized ... -
Scale formation and bulk precipitation of calcium carbonate in the presence of inhibitor
(Master thesis, 2009) -
Scaling of Calcium Carbonate at Heated Surfaces in a Continuous System
(Master thesis, 2011)Scaling is the precipitation of a mineral layer on a surface. Sparingly soluble salts with inverse solubility, which calcium carbonate exhibits, will prefer precipitation at heated surfaces, making heat exchangers a target ... -
Scaling of Calcium Carbonate on a Heated Surface in a Flow Through System with Mono Ethylene Glycol.
(Master thesis, 2013)Efficiency of industrial heat exchangers can be reduced due to precipitation of a solid mineral layer called scale. Reversibly soluble salts such as calcium carbonate are less soluble at elevated temperatures and therefore ... -
Scanning Precession Electron Diffraction and What We Get Out of Such Data in Studies of Aluminium Alloys
(Peer reviewed; Journal article, 2022) -
Screening and Testing of Transition Metal Phosphides for Hydrodeoxygenation of Bio-oil Model Compounds to Jet Fuel Range Hydrocarbons
(Master thesis, 2022)Det høye oksygeninnholdet i pyrolysebioolje, som inneholder mange organiske funksjonelle grupper, forbyr direkte bruk som blandingsmateriale for transportdrivstoff. Den katalytiske hydrodeoksygeneringen (HDO) av biomasseavledede ... -
Screening and VLE of Phase change Solvent
(Master thesis, 2013)In this work a screening apparatus of CO2 absorption has been applied to test the absorption characteristics for mixed systems. The main absorption characteristics of absorbents for CO2 removal are the absorption rate and ... -
Screening Cellulose Spinning Parameters for Fabrication of Novel Carbon Hollow Fiber Membranes for Gas Separation
(Journal article; Peer reviewed, 2019)Novel carbon hollow fiber membranes (CHFMs) have been, for the first time, prepared from cellulose precursors directly spun with a cellulose/(1-ethyl-3-methylimidazolium acetate (EmimAc) + dimethyl sulfoxide (DMSO)) system. ... -
Screening of Aqueous Solvent Systems for Post-Combustion CO2 Capture by Chemical Absorption
(Master thesis, 2016)The atmospheric CO2 concentration we see today has likely not been seen before. As carbon dioxide is a strong greenhouse gas, this is a big red flag towards global warming. A higher mean temperature on earth would lead to ... -
Screening of Aqueous Solvent Systems for Post-Combustion CO2 Capture by Chemical Absorption
(Master thesis, 2016)The atmospheric CO2 concentration we see today has likely not been seen before. As carbon dioxide is a strong greenhouse gas, this is a big red flag towards global warming. A higher mean temperature on earth would lead to ... -
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 ... -
Screening of Molybdenum, Iron and Phosphorus based catalysts for hydrodeoxygenation of Simulated bio-oil as a model liquid product from fast pyrolysis
(Master thesis, 2021)Nine different catalysts were tested for hydrodeoxygenation (HDO) of simulated bio-oil which is comprised of a mixture of distill water, acetic- acid, acetol, furfural, phenol, guaiacol and eugenol. The tested catalysts ... -
Screening of strong bicarbonate forming solvents for CO2 capture
(Journal article; Peer reviewed, 2017-03)Fifteen bicarbonate forming solvents were tested and compared to 30 mass% MEA using a screening apparatus. Additionally the pKa values of each of the solvents at room temperature were measured. The overall evaluation was ... -
Seebeck coefficients of cells with molten carbonates relevant for the metallurgical industry
(Journal article; Peer reviewed, 2015)We report Seebeck coefficients of electrochemical cells with molten carbonate mixtures as electrolytes and carbon dioxide|oxygen electrodes. The system is relevant for use of waste heat and off-gases with concentration of ... -
Segregation dynamics of a Pd-Ag surface during CO oxidation investigated by NAP-XPS
(Peer reviewed; Journal article, 2021)The dynamic changes in composition in the near-surface region of a Pd75%Ag25%(100) single crystal were monitored using near-ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) during CO oxidation under oxygen rich ... -
Selected blended amines for postcombustion CO2 capture
(Doctoral theses at NTNU;2019:143, Doctoral thesis, 2019)Carbon capture and storage is an important climate measure for a low carbon future. The CO2 capture technology closest to implementation for post-combustion CO2 capture systems is chemical absorption with amine solvents. ... -
Selection and Characterization of New Absorbents for Carbon Dioxide Capture
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:156, Doctoral thesis, 2005)Removal of acidic gases, in particular CO2, is an important industrial operation. Carbon dioxide is produced in large quantities by fossil–fuel–fired power plants, steel production, the production of petrochemicals, cement ... -
Selective Charging Behavior in an Ionic Mixture Electrolyte- Supercapacitor System for Higher Energy and Power
(Journal article; Peer reviewed, 2017)Ion–ion interactions in supercapacitor (SC) electrolytes are considered to have significant influence over the charging process and therefore the overall performance of the SC system. Current strategies used to weaken ionic ... -
Selective Recovery of Lithium from Lithium-Ion Batteries (LIBs) of Electrical Vehicles (EVs)
(Master thesis, 2021)Lithium-ion batteries (LIBs) dominate in the electric vehicle (EV) market due to their excellent performance. The recent growth is primarily driven by the electrification of transportation. Despite a recession in overall ...