Blar i NTNU Open på forfatter "Lødeng, Rune"
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Catalysis for Control of Methane Slip in Marine Machinery - Using a Palladium based Catalyst
Sandvik, Helene Mørkkåsa (Master thesis, 2016)In a world distributing more and more liquefied natural gas (LNG), due to it`s advantages within health, environment and energy compared to gasoline and diesel, it is favourable to research more within this area. The main ... -
Catalysis for control of methane slip in marine machinery - Using platinum-based catalysts
Storrvik, Hanna Marie (Master thesis, 2016)Greenhouse gas abatement in the shipping industry has become increasingly relevant in the recent years, due to stricter laws and regulations. The use of ships running on liquid natural gas is thus growing rapidly in the ... -
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 Oxidation of NO over LaCo1−xBxO3 (B = Mn, Ni) Perovskites for Nitric Acid Production
Salman, Ata ul Rauf; Hyrve, Signe Marit; Regli, Samuel K.; Zubair, Muhammad; Enger, Bjørn Christian; Lødeng, Rune; waller, david; Rønning, Magnus (Journal article; Peer reviewed, 2019)Abstract Nitric acid (HNO3) is an important building block in the chemical industry. Industrial production takes place via the Ostwald process, where oxidation of NO to NO2 is one of the three chemical steps. The reaction ... -
Catalytic oxidation of NO to NO2 for nitric acid production
Salman, Ata ul Rauf (Doctoral theses at NTNU;2019:376, Doctoral thesis, 2019) -
Catalytic oxidation of NO to NO2 for nitric acid production over a Pt/Al2O3 catalyst
Salman, Ata ul Rauf; Enger, Bjørn Christian; Auvray, Xavier; Lødeng, Rune; Menon, Mohan; Waller, David; Rønning, Magnus (Journal article; Peer reviewed, 2018)The oxidation of nitric oxide (NO) to nitrogen dioxide (NO2) is a key step both in NOx abatement technologies as well as in the Ostwald process for nitric acid production. A 1 wt.% Pt/Al2O3 catalyst was used to study ... -
Comparison of Fresh and Spent Pd/Al2O3 Catalysts for Low Temperature Selective Hydrogenation
Værnes, Erlend Skjørstad (Master thesis, 2021)Karakterisering av to kommersielle Pd/γ-Al2O3 katalysatorer med ulik dispersjon var utført før og etter aktivitetstester. Aktivitetstestene innebar selektiv hydrogenering av et nitroarenderivat for å danne et korresponderende ... -
Establishing Characterization and Methodology for Analyzing Performance of Commercial Particulate Silver Catalyst for Formalin Production
Naustdal, Vegard (Master thesis, 2016)Formaldehyde is the simplest aldehyde and is an active organic compound in many reactions making it a versatile building block for the chemical industry. Formaldehyde can be produced by partial oxidative dehydrogenation ... -
Establishing Experimental and Characterization Methodology for Analyzing the Performance of Silver Catalysts for Formalin Production
Lervold, Stine (Master thesis, 2016)Formaldehyde is an essential component of wood adhesives, which can be used for a wide range of applications, and is an important intermediate in the production of several fine chemicals. Industrially, production of ... -
Establishing Experimental and Characterization Methodology for Analyzing the Performance of Silver Catalysts for Formalin Production
Lervold, Stine (Master thesis, 2016)Formaldehyde is the essential component of wood adhesives, which can be used for a wide range of applications and is an important intermediate in the production of several fine chemicals. Industrially production of ... -
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, ... -
Investigations of the methanol to formaldehyde (MTF) reaction over silver
Lervold, Stine (Doctoral theses at NTNU;2021:206, Doctoral thesis, 2021)Formaldehyd har lettgjenkjennelig lukt, er det enkleste av aldehydene og ble først oppdaget av Butlerov i 1859. Industriell framstilling av formaldehyd ble utviklet i løpet av 1900-tallet og molekylet har med sin høye ... -
Low-Temperature Oxidation of Methane (CH4) and Carbon Monoxide (CO) over Pd/Al2O3 and Pd-Ag/Al2O3 Catalysts
Skogheim,Sunniva (Master thesis, 2021)Oksidasjon av metan- og karbonmonoksid ved lave temperaturer blir sett på som lovende løsninger for å kunne møte fremtidens krav om utslippsredusering. Katalytiske systemer gjør det mulig, for eksempel, å omdanne forurensninger ... -
Morphology and Activity of Electrolytic Silver Catalyst for Partial Oxidation of Methanol to Formaldehyde Under Different Exposures and Oxidation Reactions
Lervold, Stine; Arnesen, Kamilla; Beck, Nikolas; Lødeng, Rune; Yang, Jia; Bingen, Kristin; Skjelstad, Johan; Venvik, Hilde Johnsen (Journal article; Peer reviewed, 2019)Electrolytic silver particles were studied in relation to its morphology changes under different reactive and non-reactive atmospheres, and its catalytic activity in oxidation of methanol to formaldehyde (MTF), carbon ... -
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 ... -
Oxidation of Methanol to Formaldehyde (MTF) over Silver Catalyst
Stokkevåg, Susanne Klungland (Master thesis, 2020)Arbeidet som er utført i denne master oppgaven hadde som mål å bidra til forståelsen av metanol til formaldehyd reaksjonen, og sølv interaksjonene i disse forholdene. Sølvpartikler, nett og annulær ble behandlet i ulike ... -
Partial oxidation of methanol to formaldehyde in an annular reactor
Lervold, Stine; Lødeng, Rune; Yang, Jia; Skjelstad, Johan; Bingen, Kristin; Venvik, Hilde Johnsen (Peer reviewed; Journal article, 2021)A structured reactor with annular configuration was applied for studying methanol oxidation to formaldehyde over silver. By eliminating gas phase reactions, high formaldehyde selectivity (93–97%) was obtained at low methanol ... -
Performance of Mn-based H2S sorbents in dry, reducing atmosphere – Manganese oxide support effects
Blekkan, Edd Anders; Chytil, Svatopluk; Lødeng, Rune; Kure, Milly (Journal article; Peer reviewed, 2017)High temperature H2S sorbents comprising manganese oxide (15 wt.%) supported on TiO2, ZrO2, CeO2 and Al2O3 were prepared by wet impregnation using Mn(NO3)2·4H2O as Mn precursor. Upon activation in H2, the sorbent performance ... -
Single-stage synthesis of highly dispersed copper and iron oxides on mesoporous supports for NH3-SCR
Bjørkedal, Ole Håvik (Doctoral theses at NTNU;2024:299, Doctoral thesis, 2024)Selective catalytic reduction (SCR) of nitrogen oxides (NOx) is a process where NOx is reduced to nitrogen (N2) by use of a reducing agent. One common reducing agent is ammonia (NH3-SCR). Increasingly stricter regulation ...