Browsing Institutt for kjemisk prosessteknologi by Title
Now showing items 512-531 of 1765
-
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
(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 ... -
Effects of Oxygen Mobility in La-Fe-Based Perovskites on the Catalytic Activity and Selectivity of Methane Oxidation
(Peer reviewed; Journal article, 2020)The mechanism and structure requirements of selective and total oxidation of methane in a chemical looping process are both experimentally and theoretically examined on La1–xSrxFeO3−δ (x = 0, 0.2, and 0.5) and La0.5Sr0.5 ... -
Effects of polymer adsorption on the effective viscosity in microchannel flows: phenomenological slip layer model from molecular simulations
(Journal article; Peer reviewed, 2018)Molecular simulations (Dissipative Particle Dynamics - DPD) were used to quantify the effect of polymer adsorption on the effective shear viscosity of a semi-dilute polymer solution in microchannel Poseuille flow. It is ... -
Effects of Porous Supports in Thin-Film Composite Membranes on CO<inf>2</inf> Separation Performances
(Peer reviewed; Journal article, 2023)Despite numerous publications on membrane materials and the fabrication of thin-film composite (TFC) membranes for CO2 separation in recent decades, the effects of porous supports on TFC membrane performance have rarely ... -
Effects of post anaerobic digestion thermal hydrolysis on dewaterability and moisture distribution in digestates
(Journal article; Peer reviewed, 2019)Organic waste fractions such as sewage sludge, food waste and manure can be stabilized by anaerobic digestion (AD) to produce renewable energy in the form of biogas. Following AD, the digested solid fraction (digestate) ... -
Effects of Potassium and Copper Promoters on Iron Fischer-Tropsch Catalysts
(Master thesis, 2015)The demand for energy is an ever increasing problem in the world today. The need for more abundant energy sources to take over the role of crude oil is becoming more and more present. GTL processes (gas-to-liquid), which ... -
Effects of Seeding on the Crystallization Behaviour and Filtration Abilities of an Aromatic Amine
(Master thesis, 2017)One of the intermediates in the production of X-ray contrast agents at GE Healthcare Lindesnes, commonly referred to as an aromatic amine, is subject to a crystallization. Crystallization parameters such as size, size ... -
Effects of shear-thinning rheology on near-wall turbulent structures
(Peer reviewed; Journal article, 2021)Turbulent channel flow simulation of a shear-thinning fluid is considered – see Arosemena et al. (J. Fluid Mech., vol. 908, 2021, p. A43) – and compared with a Newtonian base case to reveal the effects of the shear-dependent ... -
Effects of sulphur on a Co/Mn-based catalyst for Fischer-Tropsch reactions
(Journal article; Peer reviewed, 2018)The long term effect of up to 10 ppm H2S was studied for Fischer–Tropsch conversion of syngas by catalytic testing at 240 °C, 5 bar, H2/CO = 2.1 and GHSV = 2400 Nml/gcat h. Sulphur was dosed after ~ 300 or ~ 1000 h time ... -
Effects of Supersaturation Build-Up on the Crystal Properties and Filtration Performance of an Aromatic Amine
(Master thesis, 2021)Produksjonen av aktive farmasøytiske ingredienser i farmasøytisk industri oppnås ofte ved krystallisering og påfølgende filtreringsprosess, der filtreringsprosessen vanligvis blir ansett som den viktigste prosessflaskehalsen. ... -
Effects of the Morphology of the ZIF on the CO2 Separation Performance of MMMs
(Peer reviewed; Journal article, 2020)In this study, three zeolitic imidazolate frameworks (ZIFs) with different shapes—particles (0D), microneedles (1D), and leaves (2D)—were synthesized by tuning the polymeric additives. These ZIFs have been dispersed into ... -
Efficacy of a novel sequential enzymatic hydrolysis of lignocellulosic biomass and inhibition characteristics of monosugars
(Peer reviewed; Journal article, 2019)Efficient production of sugar monomers from lignocellulose is often hampered by serious bottle-necks in biomass hydrolysis. The present study reveals that ultra-sonication assisted pretreatment following autoclaving, termed ... -
Efficient catalysts for achieving NO /NO2 equilibrium
(Master thesis, 2016)The aim of this work was to characterize an alumina supported Pt catalyst before and after post- and pre-modification with WO3. A 2wt%Ru/Al2O3 and a WO3/ZrO2 catalyst were also characterized. Pt/Al2O3 with a loading of ... -
Electric steam methane reforming - Economical and environmental implications of replacing methane with electricity for heating in a steam methane reformer
(Master thesis, 2021)Grønn energi har fått en trekkraft som et resultat av økt fokus på bærekraft, og det blir forsket på mer enn noen gang før. Ettersom fossile brennstoff er skadelig for miljøet, er det på tide at de byttes ut. Hydrogen er ... -
Electrochemical multilayer deposition of polyaniline and Prussian Blue and their application in solid state electrochromic windows
(Journal article; Peer reviewed, 1998)In an attempt to enhance the solar modulation in electrochromic windows, the electrochemical deposition of polyaniline (PANI) and prussian blue (PB been studied more closely. Several layers of PANI and PB at different ... -
Electrochemical syngas production from CO2 and water with CNT supported ZnO catalysts
(Peer reviewed; Journal article, 2020)Electrochemical reduction of CO2 and H2O can provide a promising pathway to synthesis gas generation for renewable electric energy storage and fuel production with the closed anthropogenic carbon cycle. However, the lack ... -
Electrocoalescence of water in oil emulsions: a DPD simulation study and a novel application of electroporation theory
(Journal article; Peer reviewed, 2019)Pore formation in a surfactant laden oil film between two aqueous electrolyte layers in a DC field was studied using DPD (Dissipative Particle Dynamics molecular simulation). This setting represents the final stage of an ... -
Electrodialysis in Hydrometallurgical Processes
(Chapter, 2020)Electrodialysis (ED) is an ionic exchange membrane process for separation of different components and species. In desalination, a large part of the energy is used to sustain a concentration difference between the solutions, ... -
Electrodialysis in Hydrometallurgical Processes
(The Minerals, Metals & Materials Series;, Chapter; Peer reviewed, 2020)Electrodialysis (ED) is an ionic exchange membrane process for separation of different components and species. In desalination, a large part of the energy is used to sustain a concentration difference between the solutions, ... -
Electronic Origin of Oxygen Transport Behavior in La-Based Perovskites: A Density Functional Theory Study
(Journal article; Peer reviewed, 2019)Understanding the oxygen transport behavior in perovskites is of central importance for tailoring their physical and chemical properties to various practical applications. In this contribution, periodic DFT+U calculations ...