Blar i Institutt for kjemisk prosessteknologi på tittel
Viser treff 1443-1462 av 1767
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Screening of Molybdenum, Iron and Phosphorus based catalysts for hydrodeoxygenation of Simulated bio-oil as a model liquid product from fast pyrolysis
(Master thesis, 2021)Nine different catalysts were tested for hydrodeoxygenation (HDO) of simulated bio-oil which is comprised of a mixture of distill water, acetic- acid, acetol, furfural, phenol, guaiacol and eugenol. The tested catalysts ... -
Screening of strong bicarbonate forming solvents for CO2 capture
(Journal article; Peer reviewed, 2017-03)Fifteen bicarbonate forming solvents were tested and compared to 30 mass% MEA using a screening apparatus. Additionally the pKa values of each of the solvents at room temperature were measured. The overall evaluation was ... -
Seebeck coefficients of cells with molten carbonates relevant for the metallurgical industry
(Journal article; Peer reviewed, 2015)We report Seebeck coefficients of electrochemical cells with molten carbonate mixtures as electrolytes and carbon dioxide|oxygen electrodes. The system is relevant for use of waste heat and off-gases with concentration of ... -
Segregation dynamics of a Pd-Ag surface during CO oxidation investigated by NAP-XPS
(Peer reviewed; Journal article, 2021)The dynamic changes in composition in the near-surface region of a Pd75%Ag25%(100) single crystal were monitored using near-ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) during CO oxidation under oxygen rich ... -
Selected blended amines for postcombustion CO2 capture
(Doctoral theses at NTNU;2019:143, Doctoral thesis, 2019)Carbon capture and storage is an important climate measure for a low carbon future. The CO2 capture technology closest to implementation for post-combustion CO2 capture systems is chemical absorption with amine solvents. ... -
Selection and Characterization of New Absorbents for Carbon Dioxide Capture
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:156, Doctoral thesis, 2005)Removal of acidic gases, in particular CO2, is an important industrial operation. Carbon dioxide is produced in large quantities by fossil–fuel–fired power plants, steel production, the production of petrochemicals, cement ... -
Selective Charging Behavior in an Ionic Mixture Electrolyte- Supercapacitor System for Higher Energy and Power
(Journal article; Peer reviewed, 2017)Ion–ion interactions in supercapacitor (SC) electrolytes are considered to have significant influence over the charging process and therefore the overall performance of the SC system. Current strategies used to weaken ionic ... -
Selective Recovery of Lithium from Lithium-Ion Batteries (LIBs) of Electrical Vehicles (EVs)
(Master thesis, 2021)Lithium-ion batteries (LIBs) dominate in the electric vehicle (EV) market due to their excellent performance. The recent growth is primarily driven by the electrification of transportation. Despite a recession in overall ... -
Selective recovery of silver from copper impurities by electrodialysis: Tailoring monovalent selective cation exchange membranes by monomolecular layer deposition
(Peer reviewed; Journal article, 2023)Selective recovery of silver from secondary resources enriched with copper impurities is a well-known challenge but is urgently needed by the industry. This study addresses the challenge by developing a highly efficient ... -
Selective recovery of silver ions from copper-contaminated effluents using electrodialysis
(Journal article; Peer reviewed, 2024)With the growing demand for silver, the recycling of this precious metal from secondary sources has become imperative. However, the presence of copper impurities poses a significant challenge. This study aims to explore ... -
Selective removal of Hydrogen Sulfide from Natural Gas by use of MDEA
(Master thesis, 2013)There have been a lot of investigations on acid gas removal using absorption process in which different types of solvents including physical solvents, chemical solvents and hybrid solvents are used. One of these chemical ... -
Selectively oxygen-functionalized carbon-supported cobalt catalysts for Fischer-Tropsch synthesis
(Master thesis, 2023)Kobolt katalysert Fischer-Tropsch (FT) er en måte å produsere syntetisk drivstoff og kjemikalier fra bærekraftig råmateriale, slik som biomasse og ikke-resirkulerbar plastavfall. Vanlige bærematerialer for FT katalysatorer ... -
Selectivity and self-diffusion of CO2 and H2 in a mixture on a graphite surface
(Journal article; Peer reviewed, 2013)We performed classical molecular dynamics (MD) simulations to understand the mechanism of adsorption from a gas mixture of CO2 and H2 (mole fraction of CO2 = 0.30) and diffusion along a graphite surface, with the aim to ... -
Self Optimizing Control of Recirculated Gas-Lift Problem
(Master thesis, 2023)Olje- og gassindustrien kjennetegnes av komplekse og dynamiske produksjonssystemer som involverer flere brønner, stigerørssystemer, separatorer, kompressorer og andre sammenkoblede komponenter. Disse systemene er underlagt ... -
Self-assembly of a CTAB surfactant on gold nanoparticles: a united-atom molecular dynamics study
(Peer reviewed; Journal article, 2022)Self-assembly of a cetyltrimethyl ammonium bromide (CTAB) surfactant on gold nanoparticles (AuNPs) is studied using united-atom molecular dynamics (MD) simulations. For AuNPs in the size range of 1–3 nm, CTAB self-assembles ... -
Self-Optimizing Control in Chemical Recycle Processes
(Journal article; Peer reviewed, 2018)An engineer always has to make assumptions about the system boundary. In this paper, the impact of neglected dependencies of manipulated variables on the disturbance variables as example for said assumptions is investigated ... -
Self-Optimizing Control of an Offshore Blue Hydrogen Plant
(Master thesis, 2023)Utviklingen av fornybare energikilder øker stadig, men ytterligere fremgang er nødvendig. Oppdagelsen av nye metoder for å produsere miljøvennlig drivstoff og energikilder er avgjørende, med hydrogen som et lovende alternativ. ... -
Self-Optimizing Control Structures for Active Constraint Regions of a Sequence of Distillation Columns
(Master thesis, 2012)Investigating and mapping active constraint regions for processes, and subsequently finding control structures for each region, is vital for their optimal operation. In this work, active constraint regions of three different ... -
Sensitivity enhancement of X-ray absorption spectroscopy applied to Co-based Fischer-Tropsch synthesis catalysts
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:59, Doctoral thesis, 2014)Fischer-Tropsch synthesis is one of the options to produce sulphur-free high quality fuels. This process is of a great interest to researchers because environmental regulations become increasingly stricter. In the present ... -
Sensitivity-Based Economic NMPC with a Path-Following Approach
(Journal article; Peer reviewed, 2017)We present a sensitivity-based predictor-corrector path-following algorithm for fast nonlinear model predictive control (NMPC) and demonstrate it on a large case study with an economic cost function. The path-following ...