Browsing NTNU Open by Author "Knuutila, Hanna Katariina"
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Advancing Solvent Development for CO2 Capture with Deep Learning
Hansen, Kristoffer Elstad (Master thesis, 2024)Målet med denne oppgaven er å kombinere tradisjonelle kjemitekniske metoder med avanserte maskinlæringsteknikker. Tradisjonelle metoder innen kjemiteknikk, som Antoines likning for damptrykk og NRTL-modellen for ... -
Analytical tools for monitoring glycol degradation
Høisæter, Karen Karolina; Buvik, Vanja; Vevelstad, Solrun Johanne; Knuutila, Hanna Katariina (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), ... -
An approach for VLE model development, validation, and implementation in Aspen Plus for amine blends in CO2 capture: the HS3 solvent case study
Gilardi, Matteo; Bisotti, Filippo; Tobiesen, Finn Andrew; Knuutila, Hanna Katariina; Bonalumi, Davide (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 ... -
Aspen Plus ENRTL Model for HS3 Blend, a Novel Solvent for CO2 Capture
Gilardi, Matteo; Bisotti, Filippo; Knuutila, Hanna Katariina; Tobiesen, Finn Andrew; Bonalumi, Davide (Peer reviewed; Journal article, 2023)Carbon Capture and Storage (CCS) is among the main available options to cut CO2 emissions from the industry and energy production sectors, but the high costs of current CCS technology still limit their large-scale ... -
Assessment of the volatility of amine degradation compounds in aqueous MEA and blend of 1-(2HE)PRLD and 3A1P
Francois, Maxime Herve Jean-Jacques; Buvik, Vanja; Vernstad, Kai; Knuutila, Hanna Katariina (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 ... -
Available data and knowledge gaps of the CESAR1 solvent system
Morlando, Diego; Buvik, Vanja; Delic, Asmira; Hartono, Ardi; Svendsen, Hallvard Fjøsne; Kvamsdal, Hanne Marie; Silva, Eirik Falck da; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2024)Amine-based chemical absorption stands out as the leading technology for post-combustion CO2-capture. A blend of 3 M 2-amino-2-methyl-1-propanol (AMP) and 1.5 M piperazine (PZ), also known as CESAR1, has proven to outperform ... -
CO2 capture and utilization by biocatalytic synthesis of carboxylic acids: a process design study
Marra, Luigi; Russo, Maria Elena; Knuutila, Hanna Katariina; Marzocchella, Antonio; Salatino, Piero (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 ... -
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
Moser, Peter; Wiechers, Georg; Svendsen, Hallvard Fjøsne; Francois, Maxime Herve Jean-Jacques; Knuutila, Hanna Katariina; Garcia, Susana; Herraiz, Laura; Garcia Moretz-Sohn Monteiro, Juliana; Skylogianni, Eirini (Peer reviewed; Journal article, 2025) -
Density and Viscosity of CO2-Loaded Aqueous 2-Amino-2-methyl-1-propanol (AMP) and Piperazine (PZ) Mixtures
Morlando, Diego; Hartono, Ardi; Knuutila, Hanna Katariina (Journal article; Peer reviewed, 2024)Densities and viscosities of aqueous 2-amino-2-methyl-1-propanol (AMP)/piperazine (PZ) solutions with and without CO2 are measured from 20 to 80 °C at ambient pressure. Redlich–Kister-based correlations are proposed for ... -
Experimental VLE data for the AMP/PZ/H2O system under relevant water wash conditions for carbon capture applications
Charalambous, Charithea; Herraiz, Laura; Hartono, Ardi; Garcia, Susana; Knuutila, Hanna Katariina (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 ... -
Heat Integration Study of CO2 Capture in Blue Hydrogen Production
Limpach, Juliette; Pinto, Diego Di Domenico; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2023)Hydrogen is an energy carrier that can be used to develop a low-carbon economy: the hydrogen-based industry. For this purpose, a source of hydrogen is needed. Steam methane reforming (SMR) is the current benchmark to produce ... -
HS3 as a novel solvent for carbon capture: Model validation and an industrial case study with comparison against 30 wt% MEA
Gilardi, Matteo; Bisotti, Filippo; Knuutila, Hanna Katariina; Bonalumi, Davide (Peer reviewed; Journal article, 2024)CO2 capture is currently the most mature technological solution to reduce the environmental footprint of several emitters. However, the characterization of innovative blends with reduced energy demand and environmental ... -
Iron Solubility Measurements in Aqueous MEA for CO2 Capture
Francois, Maxime Herve Jean-Jacques; Knuutila, Hanna Katariina; Grimstvedt, Andreas Magnar (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 ... -
Modeling of CO2 Capture using Machine Learning: A data-driven approach for specific reboiler duty prediction of a pilot plant
Li, Jun Xing (Master thesis, 2024)Nasjoner over hele verden streber etter å nå målene for utslippsreduksjon fastsatt i Parisavtalen, og i den anledning spiller karbonfangst og -lagring en avgjørende rolle i å redusere klimagassutslipp. Det fullskala ... -
Monoethanolamine Degradation Rates in Post-combustion CO2 Capture Plants with the Capture of 100% of the Added CO2
Mullen, Daniel; Braakhuis, Lucas; Knuutila, Hanna Katariina; Gibbins, Jon; Lucquiaud, Mathieu (Peer reviewed; Journal article, 2024)Residual emissions from post-combustion CO2 capture plants must be reduced to zero or recaptured from the atmosphere to be compatible with long-term climate change goals. For amine-based CO2 capture, increasing CO2 capture ... -
Oxidative degradation of triethylene glycol
Høisæter, Karen Karolina; Buvik, Vanja; Gonzalez, Susana Villa; Vevelstad, Solrun Johanne; Knuutila, Hanna Katariina (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, ... -
Oxidative degradation of triethylene glycol
Høisæter, Karen Karolina; Buvik, Vanja; Gonzalez, Susana Villa; Vevelstad, Solrun Johanne; Knuutila, Hanna Katariina (Journal article; Peer reviewed, 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, ... -
Predicting solvent degradation in absorption–based CO2 capture from industrial flue gases
Braakhuis, Lucas; Knuutila, Hanna Katariina (Peer reviewed; Journal article, 2023)This work aims to predict solvent degradation rates in absorption-based CO2 capture processes using a 30 wt% aqueous monoethanolamine (MEA) solvent. A degradation model for MEA is developed and used to predict solvent ... -
Recovery of lithium from oxalic acid leachate produced from black mass of spent electric vehicle Li-ion batteries
Saleem, Usman; Buvik, Vanja; Knuutila, Hanna Katariina; Bandyopadhyay, Sulalit (Peer reviewed; Journal article, 2024) -
Stability of amines for CO2 capture
Buvik, Vanja (Doctoral theses at NTNU;2021:257, Doctoral thesis, 2021)Despite of being a well-tested and highly attractive technology for capture of carbon dioxide (CO2), amine scrubbing encounters economic and operational challenges originating from degradation of the amine solvent, in ...