Institutt for kjemisk prosessteknologi: Nye registreringer
Viser treff 21-40 av 1757
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Membrane fabricated via a facile non-solvent induced microstructure re-arrangement with superior CO<inf>2</inf> separation performances
(Journal article; Peer reviewed, 2023)CO2 capture and storage (CCS) is taken as an immediate solution to mitigate the impactof increasing atmospheric CO2 on global climate change, and CO2 separation using high-performance membranes is considered a green and ... -
Impact of dissolved oxygen removal on solvent degradation for post-combustion CO2 capture
(Peer reviewed; Journal article, 2021)One of the major issues encountered in the Post Combustion CO2 Capture processes is the degradation of the solvent which can be in great part attributed to the presence of oxygen in the solution. The present report focuses ... -
High-performance carbon-capture membranes developed by (non)solvent-induced nanostructural rearrangement in Nafion
(Peer reviewed; Journal article, 2023)Membrane materials exhibiting high CO2 permeability and selectivity are needed for CO2 capture to mitigate global climate change. In this study, Nafion is dissolved in and cast from N-methylpyrrolidone to generate membranes ... -
Carbon molecular-sieve membranes developed from a Tröger's base polymer and possessing superior gas-separation performance
(Journal article; Peer reviewed, 2023)Carbon molecular-sieve membranes possess tremendous practical advantages over unary polymer membranes by providing high gas-separation performance levels, coupled with excellent mechanical and chemical stability. Improving ... -
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 ... -
Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation
(Journal article; Peer reviewed, 2023) -
Development of Solvent Degradation Models for Amine-Based CO2 Capture
(Doctoral theses at NTNU;2024:54, Doctoral thesis, 2024)Carbon capture and storage can be essential for achieving short-term emission reductions to reach climate goals and realizing the decarbonization of hard-to-abate sectors in the future. Aside from logistical and political ... -
Data-Driven Control Strategies: From MPC to Reinforcement Learning
(Doctoral theses at NTNU;2024:42, Doctoral thesis, 2024)This thesis presents a comprehensive investigation into the integration of machine learning techniques to enhance the performance and applicability of Model Predictive Control (MPC). The main focus is on addressing challenging ... -
Removing halide ions from sulfate solutions by anion exchange membranes in electrodialysis process: Recent advances, challenges, and prospects
(Journal article; Peer reviewed, 2024)Removing halide ions from wastewater and industrial effluents is crucial to eliminating their potential risks to human health, ecosystems, and industrial operations. However, conventional techniques for this process are ... -
Microfluidic investigation of enhanced oil recovery: The effect of aqueous floods and network wettability
(Peer reviewed; Journal article, 2021)Rock wettability significantly influences underground oil extraction efficiency during enhanced oil recovery (EOR) processes. We experimentally examine the effect of wettability on oil recovery at pore-scale using ... -
Responses of Rat Mesenchymal Stromal Cells to Nanocellulose with Different Functional Groups
(Peer reviewed; Journal article, 2023)Cellulose nanofibrils (CNFs) are multiscale hydrophilic biocompatible polysaccharide materials derived from wood and plants. TEMPO-mediated oxidation of CNFs (TO-CNF) turns some of the primary hydroxyl groups to carboxylate ... -
Proper orthogonal decomposition modal analysis in a baffled stirred tank: a base tool for the study of structures
(Peer reviewed; Journal article, 2023)Proper orthogonal decomposition (POD) is applied to three-dimensional (3-D) velocity fields collected from large-eddy simulations (LES) of a baffled stirred tank. In the LES, the tank operates with a Rushton-type impeller ... -
Characterization and assessment of wax and wax inhibitors systems in microfluidic oil-in-water coalescence experiments
(Journal article; Peer reviewed, 2022)During produced water treatment, one of the key underlying phenomena affecting separation performance is coalescence between oil droplets. These processes can be affected by several factors, including chemical composition ... -
Combined Influence of High Pressure and High Temperature on the Removal of Crude Oil from Water during Laboratory-Scale Gas Flotation
(Journal article; Peer reviewed, 2023)Produced water (PW) is the major byproduct and the largest waste stream in petroleum production. Handling this water is a major issue in the oil industry. Gas flotation has proven to be an effective topside separation ... -
Predicting Silica Deposition from Superheated, Pressurized Steam Using Numerical Modeling of Nucleation, Agglomeration and Deposition
(Peer reviewed; Journal article, 2023)A model that can be used to quantify silica deposition from superheated depressurized steam is developed. Classical nucleation theory, agglomeration and deposition onto a wall are combined in a numerical model that calculates ... -
Physical absorption of carbon dioxide in imidazole-PTSA based deep eutectic solvents
(Peer reviewed; Journal article, 2021) -
CO<inf>2</inf> capture by 1-ethyl-3-methylimidazolium acetate: Solubility at low pressure and quantification of chemisorption and physisorption
(Peer reviewed; Journal article, 2021)Although chemisorptive ionic liquids (ILs) are widely expected as promising CO2 absorbents, rigorous thermodynamic analyses for such systems remain challenging due to the inevitable co-existence of chemisorption and ... -
An integrated materials approach to ultrapermeable and ultraselective CO2 polymer membranes
(Peer reviewed; Journal article, 2022)A challenge in the design of polymeric membranes for gas separation is the tradeoff between permeability, or how fast gases can flow through the membrane, and selectivity, the ability to separate one gas from another. In ... -
CO2 capture and utilization by biocatalytic synthesis of carboxylic acids: a process design study
(Peer reviewed; Journal article, 2024)The search for less energy-intensive processes is pushing toward a diversification of Carbon-Capture and Utilization/Sequestration (CCU/S) pathways. Biocatalytic processes offer sustainable solutions characterized by ... -
Experimental and theoretical study on efficient CO2 absorption coordinated by molecules and ions of DBN and 1,2,4-triazole formed deep eutectic solvents
(Peer reviewed; Journal article, 2023)Deep eutectic solvents (DESs) as a new class of designer solvents have attracted intensive attention in CO2 capture, while the interactions between CO2 and underlying molecules and/or ions in DESs are poorly understood. ...