Browsing Institutt for kjemisk prosessteknologi by Author "Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap,Institutt for kjemisk prosessteknologi"
Now showing items 41-60 of 72
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Measuring and model CO2 solubility in amine aqueous solution
Gomez Estebanez, Alberto (Master thesis, 2017)Absorption by amines is the most mature technology for CO2 capture. In this context, two alkanolamines: 2-piperidine-ethanol (2-PPE) and 1-(2-hydroxyethyl)-pyrrolidine (1-2HE-PRLD) are being investigated in this work. Ternary ... -
Mercury Behaviour in Gas-Condensate-Monoethylene Glycol (MEG) Systems
Haarseth, Pia Kristine (Master thesis, 2016)Gas and condensate production gets more challenging as the exploration takes place in deeper and in lower quality reservoirs. Under certain conditions, hydrate plugging is a major problem, causing damages to pipes and ... -
A Methodology for Finding the Optimal Location of the Processing Facility in Offshore Oil and Gas Developments
Høgstad, Jon (Master thesis, 2017)To ensure a sustained and economically feasible production of hydrocarbons in offshore oil and gas developments, it is essential that the oil recovery technique, location of the processing facility and the pipeline design ... -
Modeling and Simulation of a Bubble Column Reactor for Single-Cell Protein Production from Methane
Heuch, Cathrine Ro (Master thesis, 2017)The methane fermentation of the bacterium Methylococcus capsulatus (Bath) to produce single-cell protein has been studied by the use of mathematical modeling and simulations. Protein production by fermentation can substitute ... -
Modelling and control of horizontal gravity separator - Demulsification of Oil-Water Interface
Emebu, Samuel (Master thesis, 2018)The project involves evaluation of the performance of crude-oil and water separation in an horizontal gravity separator. It considers the effect of crude-oil and water emulsion formation and subsequently the demulsification ... -
Modelling CO2 and H2S Solubility in Aqueous Solution of MDEA
Mundal, Ingvild (Master thesis, 2017)Raw natural gas contains acid gases like CO2 and H2S. These gases are important to remove for different reasons. CO2 leads to reduction in the heating value of a gas, reducing its selling value, and both CO2 and H2S may ... -
Multifunctional proppants for enhanced oil production from shales
Hemminghytt, Thomas Støme (Master thesis, 2015)The purpose of the work, which has been done during this thesis, has been to give a better basis for future research on the subject. The subject is functionalizing proppants and testing of these functions. The experimental ... -
Nickel and Iron Poisoning of Copper Based Methanol Synthesis Catalysts
Wigum, Stine Hagen (Master thesis, 2015)Discharged methanol synthesis catalysts are known to contain various amounts of nickel and iron. The purpose of this master thesis was to study nickel and iron poisoning of commercial copper based methanol synthesis catalysts ... -
Nickel Cobalt Catalyst for Methane Abatement in Marine Machinery
Lund-Johansen, Ragnhild Brokstad (Master thesis, 2017)Natural gas vehicles (NGVs) have been suggested as an alternative to conventional vehicles in the marine sector, in order to reduce the large contribution this sector provides to greenhouse gas emissions. Natural gas has ... -
NO oxidation catalyzed by high surface area perovskites
Gremmetsen, Henrik Jenssen (Master thesis, 2018)The production of nitric acid is crucial for the production of fertilizer which is necessary to meet the world s demand for food. NO oxidation is one of three chemical steps in the nitric acid production, also called the ... -
One-pot Conversion of Biomass to Chemicals on Ni-Cu/ZnO Based Catalysts
Morken, Siri Foss (Master thesis, 2015)Optimization of the one-pot hydrothermal reaction of cellulose to polyols have been investigated. Ni-Cu-ZnO catalysts supported by carbon nanotubes (CNT) with varying nickel (Ni) and copper (Cu) mole ratio was synthesized ... -
Optimisation of an Ammonia Synthesis Loop - Investigation of a Novel Approach for Optimisation of Integrated plants
Bland, Martin Jonathan (Master thesis, 2015)A Hysys model representing the steady state behaviour of a Haber-Bosch ammonia plant was developed based on a dynamic model and plant data from Norwegian fertiliser company Yara International ASA. The plant model was ... -
Optimization of the Numerical Solution of the Population Balance Equation
Engh, Mathias (Master thesis, 2016)The population balance equation (PBE) is a frequently applied equation in the modeling of multiphase reactors. Accurate solution of the PBE is important in order to have a precise estimate of the interfacial area, which ... -
Oxidation of Methanol to Formaldehyde over Ag - Kinetic Modelling of Gas Phase Reactions using COMSOL Multiphysics
Ekholdt, Rakel Johanne (Master thesis, 2017)In this master thesis the goal was to create two COMSOL Multiphysics simulation models, one representing the laboratory scaled reactor and the other representing the industrial scale reactor, to study gas phase reactions ... -
Pressurized Reduction of Cu-ZnO Water-Gas Shift Catalysts in Presence of Water
Eraker, Øyvind Juvkam (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 ... -
Reduction of Cu-ZnO water-gas shift catalysts in presence of water
Larsen, Annemari Løberg (Master thesis, 2016)Cu/ZnO/Al2O3 catalysts are used to catalyze the low temperature water-gas shift (WGS) step in the ammonia synthesis process. Deactivation of the catalyst due to low mechanical strength has been experienced by Yara, which ... -
Renewable CO2 recycling and synthetic methanol production
Hauge-Iversen, Hallvard Bremer (Master thesis, 2018)The demand for energy in the world is increasing, and with that the need for new energy sources. A problem with fossil fuels as an energy source, is the huge amount of CO2 that comes with it. Consequently, the demand for ... -
Screening of Aqueous Solvent Systems for Post-Combustion CO2 Capture by Chemical Absorption
Krokvik, Iris Renate Tøkje (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 ... -
A Simplification Procedure for Distillation Tray Models
Edvardsen, Johan Christian (Master thesis, 2018)The popularity of liquid separation by distillation in the industry has resulted in a wide range of distillation models. These models range from detailed flow models used in the design of trays and packings, to models ... -
Simulation and Analysis of RNA Polymerase Motion on the DNA
Tostrup, Aud-Therese (Master thesis, 2018)RNA Polymerase is an enzyme that is frequently used to clone genetic material. However, backtracking seems to turn the process remarkably inefficient, because it leads to a lot of waste of raw material, making the cost of ...