Institutt for kjemisk prosessteknologi: Recent submissions
Now showing items 41-60 of 1757
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Capturing CO2 by ionic liquids and deep eutectic solvents: A comparative study based on multi-level absorbent screening
(Peer reviewed; Journal article, 2023)Because of the high energy consumption and volatility of organic amine solvents in conventional CO2 capture processes, ionic liquids (ILs) and deep eutectic solvents (DESs) have been widely expected as alternative CO2 ... -
A new facility for viscosity and density measurements for CO2 – rich mixtures relevant for CO2 transport and storage
(Journal article, 2022)For safe and cost-effective design, optimization, and operation of CO2 capture, transport, and storage (CCS) processes, accurate viscosity and density data of CO2-rich mixtures are required. Currently, there are large ... -
Development of high capacity moisture-swing DAC sorbent for direct air capture of CO<inf>2</inf>
(Peer reviewed; Journal article, 2023) -
Oxidative degradation of triethylene glycol
(Peer reviewed; Journal article, 2024)Triethylene glycol (TEG) is unstable in the presence of oxygen and at high temperatures, though the degradation mechanisms occurring are not properly understood. In attempting to close some of the knowledge gaps, ... -
Recent advances in the design and use of Pickering emulsions for wastewater treatment applications
(Journal article, 2023)Pickering emulsions have recently emerged as versatile systems capable of targeting many applications of wastewater treatment. The unique properties, which include high emulsion stability, easy preparation, low toxicity, ... -
Thin film nanocomposite membranes fabricated via 2D ZIF-67 nanosheets and 1D nanofibers with ultrahigh water flux for dye removal from wastewater
(Journal article; Peer reviewed, 2024)Thin-film nanocomposite (TFN) membranes based on metal–organic frameworks (MOFs) have received increasing attention in the field of water treatment. However, TFN membranes with both high permeance and rejection rates are ... -
Development of ion exchange membranes for resource recovery and impurity removal in electrodialysis
(Doctoral theses at NTNU;2023:416, Doctoral thesis, 2023)In metal production and processing, large amounts of aqueous streams containing both metallic and non-metallic species are generated when extracting the desired bulk metals. While some of the remaining diluted compounds, ... -
Physical properties and reaction kinetics of CO2 absorption into unloaded and CO2 loaded viscous monoethanolamine (MEA) solution
(Journal article, 2021)In order to comprehensively understand how solvent free concentration and high viscosity affect mass transfer and consequently absorption flux, CO2 absorption kinetics into unloaded and CO2 loaded viscous monoethanolamine ... -
Vapor liquid equilibrium of pure and aqueous Methyl diethanolamine (MDEA), 2-Dimethylmonoethanolamine (DMMEA), N-Methylmonoethanolamine (MMEA) and 1-(2-Aminoethyl)piperazine (AEP): Experimental results and modeling
(Peer reviewed; Journal article, 2023)This work presents new vapor-liquid data for the pure components 2-dimethylmonoethanolamine (DMMEA) and N-methylethanolamine (MMEA) and for the binary systems of aqueous methyldiethanolamine (MDEA), DMMEA, MMEA, and ... -
Introduction of Potassium Iodide as an Inhibitor for Oxidative Degradation of Amines
(Chapter, 2021)Oxidative degradation of amines for CO2 capture is a challenge that has yet to be overcome. This work presents the potential of using potassium iodide as a stable inhibitor, potentially without the need for replenishment ... -
A Norwegian steam explosion biorefinery
(Chapter, 2023) -
Experimental Assessment of the Environmental Impact of Ethanolamine
(Chapter, 2021)The environmental impact of ethanolamine, a common amine for carbon dioxide capture, was experimentally investigated in laboratory scale microcosms. By exposing the plant-soil systems to varying amounts of ethanolamine, ... -
Catalyst Development of Ethylene Oxychlorination to Ethylene Dichloride and Vinyl Chloride
(Doctoral theses at NTNU;2023:372, Doctoral thesis, 2023)Vinyl chloride monomer (VCM) is a critical component in the production of polyvinyl chloride (PVC), one of the most extensively used plastic polymers, through the polymerization process. The global VCM industry capacity ... -
Macro- and micro scale phenomena in gas flotation for produced water treatment- the effect of fluid composition, temperature and pressure
(Doctoral theses at NTNU;2023:369, Doctoral thesis, 2023)Produced water, the primary waste product of the petroleum industry, contains harmful components that must be treated before discharge to the sea or reinjection. The focus of treatment has traditionally been on dispersed ... -
An approach for VLE model development, validation, and implementation in Aspen Plus for amine blends in CO2 capture: the HS3 solvent case study
(Journal article; Peer reviewed, 2023)Carbon Capture and Storage (CCS) using chemical absorption is a viable method to significantly cut CO2 emissions in the industrial and energy sectors. However, further development of improved absorbents is necessary to ... -
Optimized synthesis of polyacrylic acid-coated magnetic nanoparticles for high-efficiency DNA isolation and size selection
(Peer reviewed; Journal article, 2023)Solid-phase reversible immobilization (SPRI) bead technology is widely used in molecular biology for convenient DNA manipulation. However, commercial SPRI bead kits lack cost advantages and flexibility. It is, therefore, ... -
Effect of Cu2+ on deposition mechanism and structure of ZrO2-based conversion coatings on AA6060 aluminium alloys and their susceptibility to filiform corrosion
(Peer reviewed; Journal article, 2024)Zirconium oxide-based conversion coatings (CCs) were prepared from hexafluorozirconic acid, H2ZrF6, with and without CuII as an additive. The CCs were prepared on primary and recycled AA6060. The deposition mechanism, ... -
Effect of Metal Oxides on Reaction Route and Product Distribution of Catalytic Cellulose Hydrogenolysis
(Peer reviewed; Journal article, 2023)The effects of CeO2, ZrO2, Nb2O5, and ZnO catalysts supported on carbon nanotubes (CNT) relative to cellulose hydrothermal hydrogenolysis in the presence of Ni/CNT and pressured H2 was studied in this work. The catalysts ... -
Enhancing Palladium Recovery Rates in Industrial Residual Solutions through Electrodialysis
(Peer reviewed; Journal article, 2023)Palladium is a vital commodity in the industry. To guarantee a stable supply in the future, it is imperative to adopt more effective recycling practices. In this proof-of-concept study, we explore the potential of ...