Blar i NTNU Open på forfatter "Blekkan, Edd Anders"
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Adsorption and reaction kinetics insights for industrialcatalyzed reactions
Mawanga, Moses (Doctoral theses at NTNU;2024:463, Doctoral thesis, 2024)Imagine a future where industrial processes are more efficient and with compact footprints – thanks to advances and improvements in chemical reactions. This research focuses on improving two such key reactions: the oxidation ... -
Adsorption Properties of Supported Cobalt Catalysts Studied via Microcalorimetry
Martin Montoya, Julio Guillermo (Master thesis, 2012)Adsorption properties of alumina (γ-Al2O3) supported catalysts used for Fischer-Tropsch synthesis were studied using microcalorimetry for hydrogen or carbon monoxide chemisorption at 40ºC. The three catalysts investigated ... -
Carbon Formation and Catalysis in the Conversion of Methyl Chloride and Silicon into Dimethyldichlorosilane - Collaboration with Elkem - Bluestar
Tysseland, Amalie (Master thesis, 2018)The Direct Process is the most prominent method for producing dimethyldichlorosilane, and is a copper-catalyzed reaction between solid silicon and methyl-chloride gas. The process faces several complications such as the ... -
Catalytic Dehydrogenation of Propane: Oxidative and Non-Oxidative Dehydrogenation of Propane
Herauville, Virginie Marie Therese (Master thesis, 2012)The dehydrogenation of propane has a great interest, due to a global growing demand in propene. This reaction needs a catalyst, high temperature and low propane partial pressure. During this work, platinum hydrotalcite-supported ... -
Catalytic Hydrodeoxygenation of Bio-oils with Supported MoP-Catalysts
Asphaug, Sindre (Master thesis, 2013)The goal of this thesis was to test the MoP catalysts which were made during autumn 2012, in a HDO reaction of phenol to benzene at a HDO rig. The catalysts were supported by Al2O3, SiO2, TiO2 and ZrO2, and they were ... -
Catalytic Steam Reforming of Hydrocarbon Impurities from Biomass Gasification
Kristin Øxnevad Madsen (Master thesis, 2021)En bærekraftig framtid fordrer avkarbonisering av energisystemene våre ved å omstille oss fra et fossilt til et fornybart samfunn. Flytende drivstoff kan produseres fra fornybar biomasse ved å kombinere gassifisering av ... -
Catalytic Steam Reforming of Hydrocarbon Impurities from Biomass Gasification using Ni-Co/Mg(Al)O Catalysts - The Effect of the Calcination Temperature
Birkeland, Emma (Master thesis, 2024)Biodrivstoff produsert fra lignocellulosisk biomasse gjennom BtL-teknologien - biomasse gassifisering etterfulgt av FT syntese - presenterer et bærekraftig alternativ til fossilt drivstoff. På grunn av store mengder urenheter ... -
Chemical Quenching: EAB-1
Pylilo, Alexei (Master thesis, 2012)The main objective of the present work was to investigate the opportunity for the use of light hydrocarbons as quenching agents to quench high temperature gas streams. When light hydrocarbon, for example propane, is ... -
Conceptual design and techno-economic analysis of biomass to liquid processes
Pandey, Umesh; Putta, Koteswara Rao; Rout, Kumar Ranjan; Rytter, Erling; Blekkan, Edd Anders; Hillestad, Magne (Peer reviewed; Journal article, 2022)Advanced biofuels are produced by upgrading the syncrude from biomass gasification and subsequent Fischer-Tropsch (FT) synthesis. The technology is termed biomass to liquid process (BtL) and can be categorized into ... -
Conversion of Biomass-derived Synthesis Gas via the Fischer-Tropsch Synthesis using Cobalt-based Catalysts
Groven, Anette Synnøve (Master thesis, 2022)Dagens globale energiscenario og klimakrise motiverer utnyttelse av fornybare ressurser for å erstatte fossilt brensel. Biomasse er en av de mest lovende karbonnøytrale fornybare ressursene tilgjengelig for bærekraftig ... -
Deactivation of Co-Based Fischer−Tropsch Catalyst by Aerosol Deposition of Potassium Salts
Gavrilovic, Ljubisa; Brandin, Jan; Holmen, Anders; Venvik, Hilde Johnsen; Myrstad, Rune; Blekkan, Edd Anders (Journal article; Peer reviewed, 2018)A 20%Co/0.5%Re/γAl2O3 Fischer−Tropsch catalyst was poisoned by four potassium salts (KNO3, K2SO4, KCl, and K2CO3) using the aerosol deposition technique, depositing up to 3500 ppm K as solid particles. Standard characterization ... -
Dehydrogenation of propane by carbon supported metal catalysts
Ostbye Pedersen, Eirik (Master thesis, 2013)In this thesis, the catalytic properties of carbon supported Pt catalysts were investigated for the dehydrogenation of propane.Using a polyol process, Pt/Carbon catalysts active for propane dehydrogenation were successfully ... -
Dehydrogenation of propane by carbon supported metal catalysts
Østbye Pedersen, Eirik (Master thesis, 2013)In this thesis, the catalytic properties of carbon supported Pt catalysts were investigated for the dehydrogenation of propane. Using a polyol process, Pt/Carbon catalysts active for propane dehydrogenation were successfully ... -
Effect of CuCl and Zn on Cu3Si Formation and Coke Deposition in the Direct Synthesis of Dimethyldichlorosilane
Farooq, Hammad (Master thesis, 2020)The direct synthesis of dimethyldichlorosilane has been studied for more than 60 years, owing to its significance in the silicones industry. The direct process is a reaction of distinct complexity because of silicon taking ... -
Effect of trace potassium on hydrogen adsorption and dissociation on hcp cobalt: A density functional theory study
Chen, Qingjun; Svenum, Ingeborg-Helene; Gavrilovic, Ljubisa; Chen, De; Blekkan, Edd Anders (Journal article; Peer reviewed, 2018)Trace amounts of potassium (K) have a significant influence on the activity and selectivity of cobalt-based catalysts in Fischer–Tropsch synthesis (FTS), in which hydrogen adsorption and dissociation is one of the initial ... -
Effects of Ni-Co Ratio on Deactivation and Coke Formation in Steam Reforming of Hydrocarbon Impurities from Biomass Gasification with Ni-Co/Mg(Al)O Catalysts
Lysne, Ask; Madsen, Kristin Ø.; Antony, Jibin; Rout, Kumar Ranjan; Blekkan, Edd Anders (Peer reviewed; Journal article, 2022)Ni-Co/Mg(Al)O catalysts with different Ni-Co ratios (40-0, 30-10, 20-20, 10-30 and 0-40 wt%) have been tested for steam reforming of hydrocarbon impurities in a model biomass gasification syngas at relevant operating ... -
Experimental and Theoretical Studies on Water-Added Thermal Processing of Model Biosyngas for Improving Hydrogen Production and Restraining Soot Formation
Chytil, Svatopluk; Li, Chao'en; Lee, Woo Jin; Lødeng, Rune; Holmen, Anders; Blekkan, Edd Anders; Burke, Nick; Patel, Jim (Journal article; Peer reviewed, 2022)The upgrading of biosyngas to convert methane into syngas is a necessary step for hydrogen production from biomass. However, this process is highly energy-demanding. In this study, a model biosyngas containing H2, CH4, CO, ... -
Fischer-Tropsch conversion of biomass-derived synthesis gas to liquid fuels
Lillebø, Andreas Helland; Holmen, Anders; Enger, Bjørn Christian; Blekkan, Edd Anders (Journal article, 2013)Recent and ongoing research on Fischer-Tropsch catalysts for biomass conversion typically focus on the effects of impurities common in bio-derived synthesis gas, and also on the effect of different synthesis gas compositions ... -
Fischer-Tropsch synthesis over an alumina-supported cobalt catalyst in a fixed bed reactor – Effect of process parameters
Gavrilovic, Ljubisa; Jørgensen, Erik Andreas; Pandey, Umesh; Putta, Koteswara Rao; Rout, Kumar Ranjan; Rytter, Erling; Hillestad, Magne; Blekkan, Edd Anders (Peer reviewed; Journal article, 2020)Fischer-Tropsch synthesis has been investigated over a commercial type cobalt-based catalyst (20 %Co/0.5 %Re/γ-Al2O3) by varying the H2/CO ratio (2.55–1.12), CO conversion (15–75 %), reaction temperature (210 °C, 230 °C), ... -
Fischer-Tropsch synthesis – Influence of aerosol – deposited potassium salts on activity and selectivity of Co based catalysts
Gavrilović, Ljubiša (Doctoral theses at NTNU;2018:104, Doctoral thesis, 2018)The effect of potassium salts (K2SO4, KNO3, KCl, K2CO3) on cobalt based Fischer-Tropsch catalysts has been studied experimentally and theoretically. In order to better understand the deactivation effect of potassium species, ...