Blar i Institutt for kjemisk prosessteknologi på tittel
Viser treff 1396-1415 av 1783
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Recent Progresses in Understanding of Co-Based Fischer–Tropsch Catalysis by Means of Transient Kinetic Studies and Theoretical Analysis
(Journal article; Peer reviewed, 2015)During the last years it has been an increasing focus on fundamental studies of the Fischer–Tropsch synthesis (FTS). Steady-state isotopic transient kinetic analysis and first principles investigation have proven to be ... -
Recombinant production of the lantibiotic nisin using Corynebacterium glutamicum in a two-step process
(Peer reviewed; Journal article, 2022)Background The bacteriocin nisin is naturally produced by Lactococcus lactis as an inactive prepeptide that is modified posttranslationally resulting in five (methyl-)lanthionine rings characteristic for class Ia ... -
Reconstruction of temporal activity of microRNAs from gene expression data in breast cancer cell line
(Journal article; Peer reviewed, 2015)Background MicroRNAs (miRNAs) are small non-coding RNAs that regulate genes at the post-transcriptional level in spatiotemporal manner. Several miRNAs are identified as prognostic and diagnostic markers in many human ... -
Recovery of Lithium and Removal of Fluoride from Washwater in Lithium-ion Batteries Recycling Stream
(Master thesis, 2021)As the adoption of electric vehicles (EV) accelerates year after year, there is an urgent need for commercially viable solutions to recover the raw materials that make up the Lithium-Ion Batteries (LIBs). As well as lithium, ... -
Recycling Lithium from Spent Electric Vehicle (EV) Li-ion Batteries (LIBs) – A Unified Process
(Master thesis, 2022)Lithium-ion-batterier (LIB) er effektive energilagringsenheter og er i bunnen av gjeldende overganger som skjer mot elektriske kjøretøy fra biler med forbrenningsmotorer. Denne overgangen kan redusere klimagassutslippene, ... -
Redox transformations of Ru catalyst during NO oxidation at industrial nitric acid production conditions
(Peer reviewed; Journal article, 2023)Oxidation of nitric oxide is one of the main steps in the Ostwald process for industrial nitric acid production. This work summarises the use of - supported Ru catalyst to study the oxidation of NO to NO at ambient and 4 ... -
Reduction Factor for Polyaniline Films on ITO from Cyclic Voltammetry and Visible Absorption Spectra
(Journal article; Peer reviewed, 1993)The reduction factor as a function of applied potential for polyaniline films, deposited electrochemically on indium—tin oxide glass plates, has been determined from cyclic voltammetry and from visible absorption spectra, ... -
Reduction of Cu-ZnO water-gas shift catalysts in presence of water
(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 ... -
Reduction of the effective shear viscosity in polymer solutions due to crossflow migration in microchannels: Effective viscosity models based on DPD simulations
(Journal article, 2017)Molecular dynamics simulations (dissipative particle dynamics–DPD) were developed and used to quantify wall-normal migration of polymer chains in microchannel Poseuille flow. Crossflow migration due to viscous interaction ... -
Regenerable Sorbents for High-Temperature Desulfurization of Syngas from Biomass Gasification
(Peer reviewed; Journal article, 2021)Single-metal high-temperature solid sorbents for syngas cleaning using Mn, Ca, Fe, Cu, or Mo supported on γ-Al2O3 were synthesized, characterized, and tested in a fixed-bed reactor. H2S and SO2 concentrations in the gas ... -
Regenerated cellulose based carbon membranes for CO2 separation; Durability and aging under miscellaneous environments
(Journal article; Peer reviewed, 2018)Predictive models regarding the aging effect on membrane separation properties are required to estimate the membrane life time with acceptable permeability and selectivity for the respective application. The current article ... -
A regularized Moving Horizon Estimator for combined state and parameter estimation in a bioprocess experimental application
(Peer reviewed; Journal article, 2023)Due to the lack or high costs of measurement devices to monitor and control metabolites in microbial cultivation processes, state estimators are often required. These estimators depend on available on-line measurements and ... -
A Reinforcement Learning Framework to Discover Natural Flavor Molecules
(Peer reviewed; Journal article, 2023)Flavor is the focal point in the flavor industry, which follows social tendencies and behaviors. The research and development of new flavoring agents and molecules are essential in this field. However, the development of ... -
Reinforcement learning in process control
(Master thesis, 2019)Bruk av forsterkningsinnlæring som kontroller i prosessindustriene ble utforsket som et alternativ for kontroll til sammenligning med vanlige kontrollere. I denne oppgaven var forsterkningsinnlæringsmetodene value based- ... -
Relation Between Catalyst Properties and Selectivity in Fischer-Tropsch Synthesis
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:156, Doctoral thesis, 2011)Fischer-Tropsch synthesis reaction was investigated on alumina (Al2O3) phases i.e Gamma (γ), Delta (δ), Theta (Θ), and Alpha (α). By using heat treatment, δ-, Θ-, and α- Al2O3 phases were prepared from γ- alumina as the ... -
Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation
(Journal article; Peer reviewed, 2023) -
Relation between fibre flexibility and cross-sectional properties
(Journal article; Peer reviewed, 2011)The correlation between the fibre flexibility and cross-sectional area moment of inertia of thermomechanical pulp fibres was investigated. The main effects of refining were found to be internal fibrillation, external ... -
Removal of dispersed oil drops by induced gas flotation
(Master thesis, 2018)Produced water is an important byproduct of oil and gas production. With increasing number of maturing reservoirs, global oil to water cut is in the ratio of 1:3. Treatment of produced water is essential due to its detrimental ... -
Removal of impurities from industrial hydrometallurgical processes by crystallization
(Doctoral theses at NTNU;2021:211, Doctoral thesis, 2021)Metals play a crucial role in our daily life, and are usually produced from raw materials coming from mineral ores, typically by hydrometallurgical processing. Hydrometallurgy is described as the use of aqueous media to ... -
Removal of SO2 from Flue Gas - Study of the Regenerable Labsorb Process
(Master thesis, 2015)Sulphur dioxide (SO2) is a well-known air pollutant, and is primarily formed as a by-product when fossil fuels are burned at power plants. Due to stringent emission regulations, well-designed and efficient flue gas ...