Blar i NTNU Open på forfatter "Hillestad, Magne"
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Jet Pump Technology for Enhanced Oil Production
Larsen, Emilie Wattø (Master thesis, 2019)Aldrende oljefelt opplever ofte fallende produksjon i enkelte brønner som følge av lavere trykk, økende vannmengder og endrede reservoaregenskaper. Ula-platformen har vært i drift siden 1986 og har flere slike brønner. ... -
Large Scale Production of Blue Hydrogen
Torset, Adelén (Master thesis, 2023)Den globale etterspørselen etter energi øker, med en forventet etterspørsel på 180 Mt hydrogen i 2030. Den nåværende hydrogenproduksjonsmetoden er hovedsakelig dampreformering av naturgass, som er ansvarlig for 900 Mt av ... -
Mathematical Modeling and Process Parametric Study of CO2 Removal from Natural Gas by Hollow Fiber Membranes
Chu, Yunhan; Lindbråthen, Arne; Lei, Linfeng; He, Xuezhong; Hillestad, Magne (Journal article; Peer reviewed, 2019)Hollow fiber membranes show a great potential in natural gas sweetening by removing CO2 to meet gas grid specifications. A membrane model with high prediction accuracy is developed to model multicomponent gas transport ... -
Mathematical modeling and validation of CO2 mass transfer in a membrane contactor using ionic liquids for pre-combustion CO2 capture
Usman, Muhammad; Dai, Zhongde; Hillestad, Magne; Deng, Liyuan (Journal article; Peer reviewed, 2017)Mass transfer and mathematical modelling of CO2 absorption in a tubular membrane contactor using 1-Butyl-3-methylimidazolium Tricyanomethanide ([Bmim][TCM]) for pre-combustion CO2 capture has been studied in this work. A ... -
Mathematical Modelling and Process Simulation of a Membrane Absorption Process for Pre-combustion CO2 Capture
Usman, Muhammad (Doctoral theses at NTNU;2017:216, Doctoral thesis, 2017)The greenhouse gas emissions, particularly CO2, are significantly impacting the global climate change. There are strong desires to find energy efficient and economical solutions for CO2 capture from energy production, ... -
Membrane contactor for subsea natural gas dehydration: Model development and sensitivity study
Dalane, Kristin; Svendsen, Hallvard Fjøsne; Hillestad, Magne; Deng, Liyuan (Journal article; Peer reviewed, 2018)A mathematical model of a membrane contactor using triethylene glycol (TEG) for dehydration of natural gas at subsea operation conditions has been developed. The goal for the membrane contactor is to dehydrate the natural ... -
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 ... -
A Model Library for Oil/Water Emulsion Separation and Transport Processes
Assar, Moein (Doctoral thesis, 2023)In the petroleum industry, the separation and transportation of multiphase fluids, especially crude-oil and water emulsions, hold immense economic and environmental significance. Thus, development of fundamentally advanced, ... -
Model predictive control for combined cycles integrated with CO2 capture plants
Rúa, Jairo; Nord, Lars O.; Hillestad, Magne (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 ... -
Model predictive control of a polyolefin reactor
Linnestad, Kasper (Master thesis, 2015)Two models for the copolymerization of propylene and ethylene in a fluidized bed reactor (FBR) were developed. A simple model for control; and a more advanced model which served as both a replacement for logged industrial ... -
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 ... -
Modeling Fischer–Tropsch kinetics and product distribution over a cobalt catalyst
Pandey, Umesh; Runningen, Anders; Gavrilovic, Ljubisa; Jørgensen, Erik Andreas; Putta, Koteswara Rao; Rout, Kumar Ranjan; Rytter, Erling; Blekkan, Edd Anders; Hillestad, Magne (Peer reviewed; Journal article, 2021)A detailed kinetic model describing the consumption of key components and productdistribution in the Fischer–Tropsch synthesis (FTS) over a 20%Co/0.5Re γ-Al2O3commercial catalyst is developed. The developed model incorporates ... -
Modellering og modellidentifisering av eit likevektsaminsystem
Ekrheim, Hilde Bråtveit (Master thesis, 2013)Absorpsjon av karbondioksid ved hjelp av aminer er ein prosess som har stort potensial til å bli brukt på storskala anlegg. Mengde karbondioksid som blir absorbert i aminløysninga er avhengig av gass-væske likevekta. Fokuset ... -
Modelling and Fouling Monitoring of Condenser at Snøhvit
Williams, Rebecca Sian (Master thesis, 2011)This report is a result of the work performed during the Master Thesis TKP 4900 at the Department of Chemical Engineering, NTNU in the spring of 2011. The problem assigned was "Modelling and fouling monitoring of a condenser ... -
Modelling and model predictive control of a semi-batch reactor for emulsion polymerisation of PVC
Halås, Anne Øyen (Master thesis, 2020)Målet med dette prosjektet er å studere implementering av ulineær modellprediktiv regulering (NMPC) for en reaktor for emulsjonpolymerisasjon. En modell utledes ved bruk av fysiske prinsipper, og brukes til å erstatte målte ... -
Modelling and optimization of a Biomass-to-Liquid process using VMGSim
Costanzi, Riccardo (Master thesis, 2016)A biomass-to-liquid plant consists of pretreatment, gasification , syngas cleaning and conditioning, Fischer-Tropsch (FT) synthesis, and products upgrading. In the FT reactor the syngas is converted to liquid fuels on ... -
Modelling and optimization of a Gas-to-Liquid plant
Nordvåg, Ole Kristian (Master thesis, 2012)In the last years there have been much research and development regarding gas-to-liquid plants. The fuel demands are growing bigger, and fuels from oil and coal cannot cover the demands in the future. Converting natural ... -
Modelling and optimization of a Gas-to-Liquid plant
Knutsen, Kristine Tomte (Master thesis, 2013)This thesis investigates the operational performance and optimization of aGas-to-Liquid plant based on autothermal reforming (ATR) and a multitubular fixed bed (MTFB) reactor together with a cobalt catalyst. This isachieved ... -
Modelling and Optimization of a GTL Plant
Moen, Kristoffer (Master thesis, 2014)A gas-to-liquid process converts gaseous carbon feedstock into more valuable products. Recent technological improvements have led to an increased interest in this production method. This master s thesis has evaluated three ... -
Modelling and Optimization of a Process from Biomass to Liquid Fuels via Fischer-Tropsch Synthesis
Bour, Helene Florence Amndine (Master thesis, 2016)The global energy demand is expected to increase by almost 50% by 2040. Simultaneously, fossil energy reserves are threatened to disappear. Thus it is imperative to development renewable technologies such as Biomass-To-Liquid ...