Institutt for kjemisk prosessteknologi
Recent Submissions
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Machine learning multi-step-ahead modelling with uncertainty assessment
(Journal article, 2024)This study presents a strategy for multi-step-ahead Identification of robust machine learning (ML). Hence, we focus on the disparity between standard single-step prediction models and the requirement for multi-step ... -
Reaction modelling of hydrogen evolution on nickel phosphide catalysts: density functional investigation
(Peer reviewed; Journal article, 2024) -
Iron Solubility Measurements in Aqueous MEA for CO2 Capture
(Journal article; Peer reviewed, 2025)Solvent degradation is one of the major challenges for amine-based carbon capture development. Oxidative degradation appears to be influenced by the combined presence of oxygen and dissolved metals, particularly iron. The ... -
Experimental VLE data for the AMP/PZ/H2O system under relevant water wash conditions for carbon capture applications
(Journal article; Peer reviewed, 2025)New vapour liquid equilibrium (VLE) ebulliometric data for 2-Amino-2-methyl-1-propanol (AMP) and Piperazine (PZ) aqueous solutions are presented in this work for a range of temperatures, 30°C, 40°C and 50°C, and AMP:PZ ... -
Demonstrating the effect of solvent aging on the volatile and aerosol-based emissions of the AMP/PZ-based solvent CESAR1 after 1,000 h and 30,000 h operation
(Peer reviewed; Journal article, 2025) -
Addressing Knowledge Gaps in Amine-Based Carbon Capture: A Focus on Degradation, Emissions, and Iron Solubility
(Doctoral theses at NTNU;2024:455, Doctoral thesis, 2024)Carbon capture and storage is a promising option for reducing CO2 emissions. Many technologies exist, with amine-based carbon capture being the most mature. However, it still faces barriers, and continuous improvements are ... -
Assessment of the volatility of amine degradation compounds in aqueous MEA and blend of 1-(2HE)PRLD and 3A1P
(Journal article; Peer reviewed, 2024)Amine-based carbon capture has proven to be a mature technology, but challenges remain. Emission control of potentially hazardous compounds is critical to ensure the long-term viability of the technology. The ability to ... -
What can go wrong in a dividing wall column and how to detect it
(Journal article; Peer reviewed, 2025)Dividing wall columns are state of the art distillation arrangements performing three separation tasks within one unit. Compared to using two conventional columns in series this saves both capital costs and energy but on ... -
Supported Cu catalysts for selective carbonyl hydrogenation - hydroxyacetone to 1,2-propanediol
(Doctoral theses at NTNU;2024:502, Doctoral thesis, 2024)The global energy crisis and environmental challenges have driven significant research into biomass-based industrial processes. Developing biomass-derived platform chemicals, fundamental to the chemical industry, is a key ... -
Biomass to liquids via Fischer-Tropsch synthesis. Electronic effects on cobalt-based catalysts
(Doctoral theses at NTNU;2024:492, Doctoral thesis, 2024)The transition from fossil fuels to alternative energy sources is one of the main challenges of the XXI century. Several strategies are being studied for decarbonizing difficult sectors as aviation, maritime transport and ... -
Rubbery organic frameworks (ROFs) toward ultrapermeable CO2-selective membranes
(Journal article; Peer reviewed, 2024)The capture of CO2 is of high interest in our society representing an essential tool to mitigate man-made climate warming. Membrane technology applied for CO2 capture offers several advantages in terms of energy savings, ... -
Adsorption Study of Chitosan Granulated Lithium Manganese Oxide (CTS/HMO) in Batch and Column Setup
(Master thesis, 2024)I rapporten ble adsorpsjonsegenskapene til CTS/LMO testet. CTS/LMO ble sammenlignet med LMO-pulver for å undersøke effekten av granulering fra LMO til CTS/HMO. Granuleringsprosessen ble studert, og desorpsjonen av CTS/LMO ... -
Bimetallic CuFe/TiO2 catalysts for catalytic upgrading of biomass pyrolysis vapors
(Master thesis, 2024)Tidligere biomasse pyrolyse-forsøk ga et høyt innhold av eddiksyre i prøvene. Tingelstad et al. fant rundt 10 % eddiksyre i sine prøver. Eddiksyre er et vannløselig molekyl, og mye karbon går derfor tapt i vannfasen. Denne ... -
Optimization and Modeling of Lithium Recovery as Lithium Carbonate from Oxalic Acid Leachate of Black Mass
(Master thesis, 2024)Lithium er et svært ettertraktet element med anvendelser i ulike industrier, inkludert batterier og mange andre. Batterier st˚ar for den største andelen av det totale litiummarkedet. Den n˚aværende globale etterspørselen ... -
Thermodynamics of Salts in Aqueous Fluids at Low Concentrations
(Doctoral theses at NTNU;2024:451, Doctoral thesis, 2024)In geothermal power plants, high-temperature aqueous fluids are extracted from boreholes in the Earth's crust and then expanded and cooled to drive turbines for electricity production. A particularly promising geothermal ... -
Pickering Emulsions Stabilized by Hybrid TiO2‑pNIPAm Composites for the Photocatalytic Degradation of 4‑Propylbenzoic Acid
(Journal article; Peer reviewed, 2025)Pickering emulsions (PEs) have demonstrated significant potential in various fields, including catalysis, biomedical applications, and food science, with notable advancements in wastewater treatment through photocatalysis. ... -
Maximizing yields of furfural and 5-hydroxymethylfurfural in side streams from steam explosion of lignocellulosic residues
(Journal article; Peer reviewed, 2024)The demand for renewable energy and chemicals from biomass resources has led to the development of methods for biorefining lignocellulosic materials into pellets and value-added chemicals. This has, in turn, driven a search ... -
Physics-based and data-driven modelling and simulation of Solid Oxide Fuel Cells
(Journal article; Peer reviewed, 2024)This paper presents a comprehensive approach to multiscale and multiphysics modelling of Solid Oxide Fuel Cells (SOFCs) by combining physics-based simulations with data-driven techniques. The modelling approach is tailored ... -
Steam explosion of lignocellulosic residues for co-production of value-added chemicals and high-quality pellets
(Journal article; Peer reviewed, 2024)The demand of pellets as energy carrier and the competitiveness of wood biomass are the drivers for finding alternative raw materials for production of pellets. The aim of this study was to investigate the steam explosion ... -
Analytical tools for monitoring glycol degradation
(Journal article; Peer reviewed, 2024)This paper aims to develop new methods for monitoring oxidative and thermal glycol degradation through solvent analysis. Methods for quantifying TEG, and for quantifying some degradation products (small glycols and acids), ...
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